Analytical and Pure Reagents. with guaranteed specifications

Transcription

1 Analytical and Pure Reagents with guaranteed specifications

2 Analytical and Pure Reagents with guaranteed specifications In ITW Reagents we know how important it is to use reagents of suitale purity and consistent atch to atch. All our products are analyzed according to their specific application and guaranteed y a rigorous quality control in our analytical laoratories. Our portfolio includes more than 0 products such as solvents, acids, ases and salts indicated for general analytical applications that need high purity levels and very low content of impurities. The specifications can accomplish international regulations as (International Organization for Standardization), American regulations as (American Chemical Society) and/or can fulfil the requirements indicated in the Pharmacopeias ( or USP) for the reagents to e used for analytical purposes. In the following tale you will find a selection of reagents for general analytical applications. For other specific applications please ask for our dedicated rochures: Reagents for HPLC and Spectroscopy, High purity reagents for pesticide residues analysis, Ultra pure reagents for metallic traces analysis, Solutions and Reagents for Volumetric analysis, Analytical Standards, Reagents for wine analysis, etc. 2

3 A A W USP 0 g 2 g 38 Acetic Acid glacial (Reag. ) for analysis,,, 99.7% a a i 48 Acetic Acid glacial (USP, BP, ) pure, pharma grade, 99.-.% a a Acetic Acid 96% for analysis a a 26 Acetic Acid 80% for analysis a L 2736 Acetic Acid 30% for analysis i 436 Acetic Acid/Chloroform 3:2 - Mixture v/v pure for determination of peroxide value in oils 347 Acetic Anhydride (Reag. ) for analysis,,, 99% 4 4 a a i 37 Acetone (Reag. ) for analysis,,, 99.% a a i ; i; ; 47 Acetone (USP, BP, ) pure, pharma grade, 99.% a a i Acetone + Bromophenol lue for determination of soap content in oil i 388 Acetonitrile (Reag. ) for analysis,, 99.7% 4 4 a a 4792 Agar (USP-NF) pure, pharma grade 4 G 260 Alizarin Red S (C.I. 800) for analysis ph and adsorption indicator 3.7 yellow;.2 purple red a 499 Alkylenzyldimethylammonium Chloride pure, % 7737 Allylthiourea solution ( g/l) for BOD determination aqueous solution according to DEV H Aluminium metal, powder pure a 4097 Aluminium Chloride 6-hydrate (USP, BP, ) pure, pharma grade, % Aluminium Hydroxide pure, 90% 3099 Aluminium Nitrate 9-hydrate (Reag. ) for analysis,, % Aluminium Nitrate 9-hydrate pure, % G 2 Aluminium Oxide Basic (Reag. ) for analysis for chromatography in column Aluminium Potassium Sulfate 2-hydrate for analysis,, % Aluminium Potassium Sulfate 2-hydrate (USP, BP, ) pure, pharma grade, % 40 Aluminium Sulfate 8-hydrate pure 2632 Amido Black 0B solution for the determination of protein content in milk for analysis according to NF V i 306 Amidosulfuric Acid (Reag. USP, ) for analysis,, % for determination of phosphorus Ammonia 30% (as NH3) for analysis,, % 4 a a 430 Ammonia 30% (as NH3) (USP-NF, BP, ) pure, pharma grade, % a a i 229 Ammonia 2% (as NH3) (Reag. USP, ) for analysis, % 4 4 a a i i 429 Ammonia 2% (as NH3) (BP, ) pure, pharma grade, % a a i 228 Ammonia 20% (as NH3) for analysis a A266 Ammonia 0% for analysis i 34 Ammonium Acetate (Reag. ) for analysis,, 98% 4 4 G 39 Ammonium Caronate (Reag. ) for analysis, Ammonium Caronate (USP-NF) pure, pharma grade Ammonium Cerium(IV) Sulfate 2-hydrate (Reag. USP, ) for analysis,, 99.0% Ammonium Chloride for analysis,,, 99.% 4 4 G G 42 Ammonium Chloride (USP, BP, ) pure, pharma grade, 99.-.% G 42 Ammonium Dichromate moistened with % of H2O pure, 99% 26 Ammonium Hydrogen Caronate (Reag. ) for analysis, 99.0% di-ammonium Hydrogen Citrate (Reag. ) for analysis,, % 4 4 g 49 Ammonium Hydrogen di-fluoride pure, 98% 326 Ammonium di-hydrogen Phosphate (Reag. ) for analysis,, 99% di-ammonium Hydrogen Phosphate (Reag. ) for analysis,, 99.0% G 3368 Ammonium Iron(II) Sulfate 6-hydrate (Reag. ) for analysis,, % Ammonium Iron(III) Sulfate 2-hydrate (Reag. ) for analysis,,, % G 334 Ammonium Molydate 4-hydrate (Reag. ) for analysis,,, 99.0% Ammonium Nitrate for analysis, 99% G 336 di-ammonium Oxalate -hydrate (Reag. ) for analysis,, % Ammonium Peroxodisulphate (Reag. ) for analysis,, 98.0% 4 4 G 340 Ammonium Sulfate (Reag. ) for analysis,,, 99.0% G 440 Ammonium Sulfate pure, 99% Ammonium Sulfide solution 20% w/w pure a 343 Ammonium Thiocyanate (Reag. ) for analysis,,, 99.0% G 3232 Ammonium meta-vanadate (Reag. USP, ) for analysis,, 99.0% Amyl Alcohol according to NF V for analysis, 98% for determination of fat in milk a 36 Aniline (Reag. ) for analysis,, 99.% 4 4 a i 3244 Anthrone (Reag. ) for analysis,, 98% 4 4 a 303 L(+)-Ascoric Acid for analysis,, 99.0% L(+)-Ascoric Acid (USP, BP, ) pure, pharma grade, % 763 Azidiol for preserving milk samples a 238 Azomethine H (Reag. ) for analysis, oron reagent 4 a (3) (2) (2) Product in glass ottle with pouring ring, see page 4 - (2) See more information related to Fat content determination in Dairy products on page (3) See more information aout this reagent on page 7 3

4 Analytical and Pure Reagents with guaranteed specifications B-C B Barium Chloride 2-hydrate (Reag. ) for analysis,,, 99.0% Barium Chloride solution 0% w/v for identification and quantitative determination of sulfates Barium Hydroxide 8-hydrate (Reag. ) for analysis,, 98.0% USP g g 2 g 0 g G L 392 Benzene (Reag. ) for analysis,,, 99.% a a s Benzethonium Chloride ( BP, ) pure, pharma grade, % 304 Benzoic Acid for analysis, Benzoic Acid (USP, BP, ) pure, pharma grade, 99.-.% 4237 Benzoyl Peroxide humidified with ~ 2% of H2O (USP, BP, ) pure, pharma grade, 98% 308 Benzyl Alcohol for analysis,, 99.% 4 a Benzyl Alcohol (USP-NF, BP, ) pure, pharma grade, a % D(+)-Biotin (USP) pure, pharma grade, % a a ,2'-Bipyridine (Reag. USP) for analysis,, 99.% 4 4 a 396 Bismuth(III) Nitrate -hydrate for analysis,, 98.0% Blue Primary Solution (BP, ) for analysis for determination of the coloration grade in liquids 30 Boric Acid for analysis,,, 99.8% 4 4 G 40 Boric Acid (USP-NF, BP, ) pure, pharma grade, % G 399 Bromine (Reag. ) for analysis,,, 99.% a 499 Bromine pure, 99% a Bromine solution %, in hydroromic acid for analysis a 23 Bromine Index AMDS solution for analysis a 7072 Bromine Water saturated solution a 379 Bromocresol Green for analysis, ph indicator 3.8 yellow;.4 lue 4 a a 246 Bromocresol Purple for analysis ph indicator.2 greenish yellow; 6.8 luish purple a Bromo-2-Nitro-,3-Propanediol (BP) pure, pharma grade, % 36 Bromophenol Blue for analysis, ph indicator 3.0 greenish yellow; 4.6 lue 4 a a 367 Bromothymol Blue for analysis, ph indicator 6.0 yellow; 7.6 lue 4 a a 7777 Buffer Solution ph. (20ºC) for determination of aluminium i Butanol (Reag. ) for analysis,,, 99.% a a i Butanol (Reag. ) for analysis, 99.0% 4 a a 3429 Butanone (Methylethylketone) (Reag. USP, ) for analysis,, 99.% a a i 4429 Butanone (Methylethylketone) pure, 99.% i 3202 n-butyl Acetate (Reag. USP, ) for analysis, a s 4282 Butylhydroxytoluene (BP, ) pure, pharma grade, 99.0% tert-butyl Methyl Ether (Reag. USP, ) for analysis,, 99.8% a a 4332 tert-butyl Methyl Ether pure, 99.% a a Keep yourself safe and the work area clean using our glass ottles with pouring ring! For corrosive products, such as acids and ases, we use glass ottles with pouring ring. The pouring ring prevents from any drop sliding down the outside of the ottle that could destroy the lael, the surface area or could harm the user. 4 Product in glass ottle with pouring ring

5 C USP 2 g 2209 Cadmium Iodide for analysis, 99.0% 3208 Cadmium Sulfate 8/3-hydrate for analysis,, % Caffeine anhydrous (USP, BP, ) pure, pharma grade, % 4 a G 42 Calcium Acetate x-hydrate (USP) pure, pharma grade, % 222 Calcium Caronate precipitated for analysis, 99.0% 422 Calcium Caronate precipitated (USP, BP, ) pure, pharma grade, 98.-.% 422 Calcium Chloride anhydrous pure, 9% 4720 Calcium Chloride dried, powdered pure, 97% G 3232 Calcium Chloride 2-hydrate powder for analysis,, % 4 G 224 Calcium Chloride 6-hydrate for analysis, 98.0% G Calcium Hydroxide, powder (USP, BP,, JP) pure, pharma grade, 9.0-.% G 7230 Calcium Lactate -hydrate for soil testing, 98% G 323 Calcium Nitrate 4-hydrate for analysis,, % 4 G 4228 tri-calcium Phosphate (BP, ) pure, pharma grade, % (as Ca) 323 Calcium Sulfate 2-hydrate for analysis,, % Calconcaroxylic Acid (Reag. ) for analysis for complexometry 4 a 3244 Caron Disulfide for analysis,, 99.9% 4 a 733 Carrez's Reagent I for precipitation of proteins i 7336 Carrez's Reagent II for precipitation of proteins i 2248 Cerium(IV) Sulfate 4-hydrate (Reag. USP, ) for analysis, 98% 4 4 G 29 Cesium Chloride for analysis, 99.% 4343 Cetyl Alcohol (USP-NF, BP, ) pure, pharma grade, % 4 G 2204 Cetyltrimethylammonium Bromide for analysis, 99.0% 2237 Charcoal Activated powder for analysis, leaching agent a g 497 Chloral Hydrate (BP, ) pure, pharma grade, % Chloramine T 3-hydrate (Reag. USP) for analysis, Chloramine T 3-hydrate (BP, ) pure, pharma grade, % G Chlorine Reagent DPD for Swan analyzers 493 Chloroenzene pure, 99% a a 2486 Chloroenzene / Acetic Acid 2: (Mixture TBN) (ASTM D2896) for analysis a a 330 Chloroform stailized with ~ 0 ppm of amylene (Reag. USP, ) for analysis,, 99.8% a a 322 Chloroform stailized with ethanol (Reag. ) for analysis,,, 99.8% a a ; 422 Chloroform stailized with ethanol pure, 99.8% a a Chloro-3-Methylphenol (USP-NF, BP, ) pure, pharma grade, % 4204 Chromium(III) Chloride 6-hydrate pure, 9.0% 227 Chromium(III) Nitrate 9-hydrate for analysis, 98.0% G 23 Chromium(VI) Oxide (Reag. ) for analysis, 98.% 4 a 3808 Citric Acid anhydrous for analysis,, 99.% 4 G 4808 Citric Acid anhydrous (USP, BP,, JP) pure, pharma grade, 99.-.% 308 Citric Acid -hydrate for analysis,,, % 4 4 G 408 Citric Acid -hydrate (USP, BP,, JP) pure, pharma grade, 99.-.% 327 Coalt(II) Chloride 6-hydrate (Reag. ) for analysis,,, % Coalt(II) Chloride 6-hydrate pure, 98% 328 Coalt(II) Nitrate 6-hydrate (Reag. ) for analysis,, % Coalt(II) Sulfate 7-hydrate pure, 98% G 4278 Collodion solution 4% w/v (USP) pure, pharma grade a a 736 Concentrated solution for the sand equivalent determination according to NF EN 933-8:999 and UNE-EN 933-8: Congo Red (C.I. 2220) for analysis a 4266 Copper metal, powder pure a 3264 Copper(II) Chloride 2-hydrate (Reag. USP, ) for analysis,, 99.0% Copper(II) Ethylenediamine Reagent for determination of cellulose paste viscosity a a 3267 Copper(II) Nitrate 3-hydrate (Reag. ) for analysis,, 99.0% Copper(II) Oxide pure, 96% Copper(II) Sulfate anhydrous (Reag. USP) for analysis, 98% Copper(II) Sulfate anhydrous (BP, ) pure, pharma grade, % 3270 Copper(II) Sulfate -hydrate (Reag. ) for analysis,,, 99-0% G G 3762 Crystal Violet (C.I. 42) for analysis,, 90.0% indicator in non aqueous medium 4 a 3 Cyclohexane (Reag. ) for analysis,,, 99.% a a z y 4 Cyclohexane pure, 99.% ; 2 ml 2 30 L (2) (2) See more information related to Fat content determination in Dairy products on page

6 Analytical and Pure Reagents with guaranteed specifications D-G D E USP g g 2 g 70 Detergent Acid Solution i 704 Detergent Neutral Solution i,2-diaminocyclohexane-n,n,n',n',-tetraacetic Acid -hydrate (Reag. ) for analysis,, 97.-.% ,2-Dichloroethane (Reag. ) for analysis,, 99.% 4 4 a a ',7'-Dichlorofluorescein (Reag. ) for analysis, 4 4 a 324 Dichloromethane stailized with ~ 20 ppm for amylene for analysis,,, 99.8% 4 4 a a 0 ; ; ,6-Dichlorophenol Indophenol Sodium Salt 2-hydrate (Reag. ) for analysis, 4 4 a 3288 Diethylamine (Reag. USP, ) for analysis,, 99.% a s Diethyl Ether stailized with ~ 6 ppm of BHT (Reag. ) for analysis,,, 99.7% z a z ; y ; Diethyl Ether stailized with ~ 6 ppm of BHT pure, 99.% z z 334 Di-Isopropyl Ether stailized with ~ 0 ppm of BHT for analysis,, 99.0% 4 a a z 234 N,N-Dimethylacetamide (Reag. ) for analysis 4 4 a 378 N,N-Dimethylformamide (Reag. ) for analysis,,, 99.8% a a i i (Dimethylamino) Benzaldehyde (Reag. ) for analysis,, 99.0% 4 4 a 394 Dimethyl Sulfoxide (Reag. ) for analysis,, 99.9% a a i i 994 Dimethyl Sulfoxide (USP, BP, ) pharma grade, 99.9% a a Dimidium Bromide (Reag. ) for analysis, 9% for determination of surfactants 4 a ,4-Dinitrophenylhydrazine moistened with~ 33% of H2O (Reag. ) for analysis, 99.0% 4 a 3296,4-Dioxan stailized with ~ 2 ppm of BHT (Reag. ) for analysis,,, 99.% a s 4296,4-Dioxan stailized with ~ 2 ppm of BHT pure, 99.% a 3828 Diphenylamine (Reag. ) for analysis,, 99.0% 4 4 a 2377,-Diphenylcarazide for analysis redox indicator a 32228,-Diphenylcarazone (contains diphenylcarazide) (Reag. ) for analysis, 4 4 a 3026 EDTA for analysis,, % 4 G G 4026 EDTA (USP-NF, BP, Eur) pure, pharma grade, % 449 EDTA Calcium Disodium Salt (USP, BP, ) pure, pharma grade, % EDTA Disodium Salt 2-hydrate (Reag. ) for analysis,, % G g 4669 EDTA Disodium Salt 2-hydrate (USP, BP, ) pure, pharma grade, % 492 EDTA Tetrasodium Salt 4-hydrate pure, 98% G 3299 Eosin Yellowish (C.I. 4380) for analysis, adsorption indicator 4 a 3439 Eriochrome Black T (C.I. 464) for analysis, for complexometry 4 a a a 3086 Ethanol asolute for analysis,,, 99.8% 4 4 a a i C i A63 * Ethanol asolute for analysis, 99.8% a a i 4086 Ethanol asolute pure, 99.% i C A4230 * Ethanol asolute (, USP) pure, pharma grade, 99.% a a 9086 Ethanol asolute (USP, BP, ) pharma grade, 99.% 4 a 2794 ** Ethanol 99.8 % denatured with IPA, MEK and Bitrex for analysis 308 Ethanol 96% v/v for analysis, 4 a a i C i A868 * Ethanol 96% v/v for analysis 408 Ethanol 96% v/v (USP, BP, ) pure, pharma grade 4 4 i C A6 * Ethanol 96% v/v (, BP) pure, pharma grade a A292 * Ethanol 70% for analysis i 9269 Ethanol 70% v/v (BP) pharma grade C ; A093 * Ethanol 70% (DAB) pure, pharma grade i 3924 Ethanolamine for analysis,, 99.0% 4 a A430 2-Ethoxyenzoic Acid pure, 98% 338 Ethyl Acetate (Reag. ) for analysis,,, 99.8% a a i ; ; 236 Ethylene Glycol (Reag. USP, ) for analysis, 99.% 4 4 i i 436 Ethylene Glycol pure, 99% i 3897 Ethylene Glycol mono-methyl Ether for analysis,, 99.% 4 a 4208 Eucalyptol (USP) pure, pharma grade, % a 2 kg 4 L L (2) (2) 6 Product in glass ottle with pouring ring, see page 4 - (2) See more information related to Fat content determination in Dairy products on page * Only availale in Germany - ** Only availale when the customer has the authorization

7 F A Fluorescein Sodium (C.I. 430) for analysis adsorption indicator Folic acid crystalline (, USP) pure, pharma grade, % Formaldehyde 37-38% w/w stailized with methanol for analysis, Formaldehyde 37-38% w/w stailized with methanol (USP, BP, ) pure, pharma grade Formaldehyde solution 0% neutralized, stailized with methanol pure USP g 2 g 4 a a a 4 i i 396 Formamide for analysis,, 99.% 4 i i 0 i 2 G 496 Formamide pure, 99% 3030 Formic Acid 98% for analysis, 4 a a i 4030 Formic Acid 98% pure a a 2029 Formic Acid 8% for analysis a a 4029 Formic Acid 8% pure a i D(-)-Fructose (USP, BP, ) pure, pharma grade, % D(+)-Galactose ( ) pure, pharma grade Gelatin powdered, (, NF) pure, pharma grade Gelatine 80- Blooms (USP-NF, BP, ) pure, pharma grade D(+)-Glucose anhydrous for analysis, 4 G G 434 D(+)-Glucose anhydrous (USP, BP, ) pure, pharma grade, % G 4340 D(+)-Glucose -hydrate (USP, BP, ) pure, pharma grade, % 3339 Glycerol for analysis,,, 99.% 4 4 i 4339 Glycerol (USP, BP, ) pure, pharma grade, % i Glycerol 87% for analysis, % i Glycerol 87% (BP, ) pure, pharma grade, % i 3340 Glycine (Reag. USP) for analysis,, 99.0% 4 4 G 4340 Glycine (USP, BP, ) pure, pharma grade, % G 4448 Gold(III) Chloride-Sodium Chloride~ 49% Au pure d 769 Griess-Ilosvay's A Reagent for detection of nitrites a 770 Griess-Ilosvay's B Reagent for detection of nitrites a Guanidine Hydrochloride pure, 98% G Acetone + Bromophenol lue 4. mg/l for determination of soap content in oils and fats, code Soaps are salts of fatty acids otained from a reaction that occurs etween free fatty acids and sodium caronate. Thanks to their water soluility and insoluility in oil, they can e separated from fat through specific procedures. Food industries use this technique to lower fat acidity and to enhance its organoleptic characteristics. For such industries, it is important to carry out a chemical analysis for determining the concentration of soaps in oils and fats. At specific ph values soaps mixed with romophenol, generate a specific lue colour. Its intensity is directly proportional to the concentration of soaps in the sample. 7

8 Analytical and Pure Reagents with guaranteed specifications H-M H I n-heptane for analysis a a z n-heptane pure 234 Heptane, alkanes mixture for analysis a a Hexachloroplatinic(IV) Acid 6-hydrate (Reag. ) for analysis,, 37.0% Pt 4 4 a 3346 Hexamethylenetetramine (Reag. ) for analysis,, % 4 4 G n-hexane (Reag. USP, ) for analysis, a a n-hexane 9% for analysis,, 9.0% 4 a a n-hexane 9% pure, 9% ; 2347 Hexane, alkanes mixture for analysis, 9.0% a a z y ; 2349 Hydrazinium Hydroxide 80% for analysis i 330 Hydrazinium Sulfate for analysis,, 99.0% Hydriodic Acid 7% for analysis,,.0-8.0% 4 a 4223 Hydriodic Acid 7% pure, -8% a 307 Hydroromic Acid 48% for analysis,,, % 4 4 a 407 Hydroromic Acid 48% pure a Hydrochloric Acid 37% (max % Hg) for analysis,, 4 4 a a 3020 Hydrochloric Acid 37% for analysis,, 4 4 a a i 4020 Hydrochloric Acid 37% (USP-NF, BP, ) pure, pharma grade a a i 3276 Hydrochloric Acid 32% for analysis, 4 a a i Hydrochloric Acid 2% for analysis, 4 a a i Hydrochloric Acid 2% pure 2223 Hydrochloric Acid 20% for analysis i 4223 Hydrochloric Acid 20% pure i 4636 Hydrochloric Acid % pure i Hydrochloric Acid 0% for analysis Hydrochloric Acid 0% (, USP-NF) pure, pharma grade 3028 Hydrofluoric Acid 48% for analysis,, Hydrofluoric Acid 40% for analysis, Hydrofluoric Acid 40% pure 474 Hydrogen Peroxide 3% pure 3077 Hydrogen Peroxide 33% w/v (0 vol.) for analysis,, 4 4 i 4077 Hydrogen Peroxide 33% w/v (0 vol.) stailized (USP, BP, ) pure, pharma grade i 2076 Hydrogen Peroxide 30% w/v ( vol.) for analysis i 4076 Hydrogen Peroxide 30% w/v ( vol.) stailized pure i 23 Hydrogen Peroxide 0% w/w for analysis Hydrogen Peroxide 6% stailized (BP) pure, pharma grade i 43 Hydroquinone (USP) pure, pharma grade, % G 7386 Hydrotimetric Liquor 4794 Hydroxylammonium Chloride (max % Hg) for analysis,,, 99.% Hydroxylammonium Chloride (Reag. ) for analysis,,, 99.% Hydroxylammonium Chloride pure, 99% 3236 Imidazole (Reag. USP, ) for analysis,, 99.0% Iodine resulimed pearls for analysis,, 99.8% 4 a a a a 477 Iodine resulimed pearls (USP, BP, ) pure, pharma grade, % a a a 4770 Iodine mono-bromide pure, 98% a 4909 Iodoform pure, 99% a 4868 Iron(II) Chloride 4-hydrate pure, 98% 438 Iron(III) Chloride 6-hydrate pure, 97-02% Iron(III) Citrate x-hydrate pure, 6.-8.% Fe 4297 Iron(III) Nitrate 9-hydrate pure, 98% 3362 Iron(II) Sulfate 7-hydrate for analysis,, 99.0% 4 G 4362 Iron(II) Sulfate 7-hydrate (USP, BP, ) pure, pharma grade, % 4360 Iron(III) Sulfate x-hydrate ~ 7% pure 3079 Isoamyl Alcohol (Reag. ) for analysis,, 99% 4 4 a 2079 Isoamyl Alcohol according to Gerer for analysis, 98.% for determination of fat in milk i 3089 Isoutanol (Reag. ) for analysis,, 99.0% 4 4 a i 4089 Isoutanol pure, 99% Isooctane (Reag. ) for analysis,, 99.0% 4 4 a a z 2273 Isoparaffin G for analysis a i 230 Isopentane for analysis, 99.% a 430 Isopentane pure a 4372 Isopropyl Myristate ( ) pure, pharma grade, 90.0% 4 USP g 2 30 L ; (2) (2) 8 Product in glass ottle with pouring ring, see page 4 - (2) See more information related to Fat content determination in Dairy products on page

9 L M USP g 0 g 2 g 0 g 2034 L(+)-Lactic Acid for analysis, 8.0% 4034 L(+)-Lactic Acid (BP, ) pure, pharma grade, 9.0% i 437 D(+)-Lactose -hydrate (USP-NF, BP, ) pure, pharma grade 4 G Lanthanum(III) Chloride 7-hydrate for analysis, 98.0% Lanthanum(III) Nitrate 6-hydrate for analysis, 99% Lanthanum(III) Oxide (Reag. ) for analysis, 99% Flux. For AA-spectrophotometry Lead(II) Acetate 3-hydrate (Reag. ) for analysis,,, % 4 a a Lead(II) Nitrate (Reag. ) for analysis,, 99.0% Lead(II) Oxide (DAC) pure, pharma grade, % 4627 Light liquid Paraffin (USP-NF, BP, ) pure, pharma grade 2786 Lithium Acetate 2-hydrate for analysis, 99% di-lithium tetra-borate for analysis, 98.0% Lithium Bromide pure, 98% 3392 Lithium Chloride (Reag. USP, ) for analysis,, 99% Lithium Hydroxide -hydrate for analysis, 99% 7274 Luff-Schoorl's Reagent for determination of sugar in meats 3394 Magnesium Acetate 4-hydrate (Reag. ) for analysis,, % Magnesium Chloride 6-hydrate for analysis,,, % 4 4 G Magnesium Chloride 6-hydrate (BP, ) pure, pharma grade, 4396 G % Magnesium Nitrate 6-hydrate (Reag. ) for analysis,, G 02.0% 4276 Magnesium Oxide light (BP, ) pure, pharma grade, % 4 g Magnesium Sulfate anhydrous pure, 98% G 3404 Magnesium Sulfate 7-hydrate for analysis,, % 4 G G 4404 Magnesium Sulfate 7-hydrate (USP, BP, ) pure, pharma grade, % G 4882 Maleic Acid (BP, ) pure, pharma grade, % 420 DL-Malic Acid (USP-NF) pure, pharma grade, % G 4797 D(+)-Maltose -hydrate pure G 340 Manganese(II) Chloride 4-hydrate for analysis,, % Manganese(II) Nitrate 4-hydrate for analysis, 98% G 343 Manganese(II) Sulfate -hydrate (Reag. ) for analysis,, % 4 4 G D(-)-Mannitol for analysis,, 98.0% D(-)-Mannitol (USP, BP, ) pure, pharma grade, % G 342 Mercury metal tridistilled (Reag. ) for analysis, for polarography Mercury metal pure Mercury(II) Acetate (Reag. ) for analysis,, 99.0% Mercury(II) Chloride for analysis,, 99.% Mercury(II) Iodide red for analysis 3266 Mercury(II) Sulfate for analysis,, 99% for determination of COD 4 G 4266 Mercury(II) Sulfate pure, 98% 309 Methanol (Reag. ) for analysis,,, 99.9% a a i ; 409 Methanol (USP-NF, BP, ) pure, pharma grade i Methoxy-2-Propanol pure, 99.% a 270 Methylene Blue (C.I. 20) for analysis, 82% a a Methyl 4-Hydroxyenzoate (USP-NF, BP,, JP) pure, pharma grade, % Methyl-2-Pentanone (Reag. ) for analysis,, 99.0% 4 4 a i Methyl-2-Propanol (Reag. ) for analysis,, 99.% 4 4 a i Methyl-2-Pyrrolidone for analysis,, 99.% 4 a 343 Methyl Orange (C.I. 302) for analysis, ph indicator 3,2 red; 4,4 yellow 4 a a 367 Methyl Red (C.I. 3020) for analysis, ph indicator 4,2 red; 6,2 yellow 4 a a a 3436 Murexide (C.I. 608) (Reag. ) for analysis, for complexometry 4 4 a 2 30 L 9

10 Analytical and Pure Reagents with guaranteed specifications N-P N O P USP g 0 g 2 g 0 g 327 N-(-Naphthyl) Ethylenediamine Dihydrochloride for analysis, 4 a a 78 Nessler's Reagent for determination of ammonia and ammonia salts 4443 Nickel(II) Chloride 6-hydrate pure, 98% 244 Nickel(II) Sulfate 6-hydrate for analysis, 99% Ninhydrin for analysis, 4 a a a 2038 Nitric Acid fuming (Reag. ) for analysis, 99.% Nitric Acid 69% for analysis,, 4 4 a a 4037 Nitric Acid 69% (USP-NF, BP, ) pure, pharma grade a a i 4732 Nitric Acid 6% (max % Hg) for analysis a a 332 Nitric Acid 6% for analysis, 4 a a i w 432 Nitric Acid 6% pure a a i 2737 Nitric Acid 3% for analysis a Nitric Acid 20% for analysis 4707 Nitric Acid 3% pure Nitrilotriacetic Acid pure, 98% 3447 Nitroenzene (Reag. ) for analysis, 4 4 a 4269 Oleic Acid ( ) pure, pharma grade, % a a 304 Oxalic Acid 2-hydrate (Reag. ) for analysis,,, 99.-0% G G 404 Oxalic Acid 2-hydrate pure, 99% 74 Oxi-Oleo-Test kit for determination of the deterioration degree of fried fats and oils Palladium(II) Chloride pure, 9% Pd Paraffin M.P. -3 C pellets (USP-NF, BP, ) pure, pharma grade 4706 Paraffin M.P C pellets ( ) pure, pharma grade 44 Paraformaldehyde (DAC) pure, pharma grade, 9.0-.% n-pentane (Reag. USP, ) for analysis, 99.0% 4 4 a a s n-pentane pure, 98% a a z s Pentanol pure, 98% 4349 Peracetic Acid % pure i 327 Perchloric Acid 70% for analysis,, 4 4 a a 427 Perchloric Acid 70% pure a a 304 Perchloric Acid 60% for analysis,, 4 4 a a r Periodic Acid (Reag. USP, ) for analysis,, % a Periodic Acid pure, 98% a Petroleum Ether C for analysis a z 33 Petroleum Ether C for analysis,, 4 4 a a z 0 ; y ; 43 Petroleum Ether C pure ; 2862 Petroleum Ether 0-70 C for analysis a 2270 Petroleum Ether C for analysis a z i Petroleum Ether -20 C for analysis a 2286 Petroleum Ether 90- C-Kerosene for analysis a z 332,0-Phenanthroline -hydrate for analysis,, 99.0% redox indicator 4 a a 3322 Phenol for analysis,, 99.% 4 a 3482 Phenol crystalline for analysis,, 99.% Phenol crystalline (USP, BP, ) pure, pharma grade, % G 4323 Phenol 90% aqueous solution (USP) pure, pharma grade a 332 Phenolphthalein (Reag. ) for analysis,, 99.0% Phenol Red for analysis, ph indicator 6,8 yellow; 8,2 red 4 a a Phenol-,,2,2-Tetrachloroethane 60:40 w/w for analysis 2396 for determination of the viscosity of polymers, according to ASTM D 4603, 628 a 303 Phosphomolydic Acid x-hydrate for analysis, 4 a a 3324 meta-phosphoric Acid stailized with NaPO3 (Reag. ) for analysis,, % (as HPO3) ortho-phosphoric Acid 8% for analysis,, 4 4 i 4032 ortho-phosphoric Acid 8% (USP-NF, BP, ) pure, pharma grade i 2660 ortho-phosphoric Acid 0% for analysis a ortho-phosphoric Acid 2% pure 2743 ortho-phosphoric Acid 0% for analysis 4743 ortho-phosphoric Acid 0% (, USP-NF) pure, pharma grade i 4746 ortho-phosphoric Acid % pure i 2373 Phosphorous Acid 98% for analysis 34 di-phosphorus Pentoxide (Reag. ) for analysis,,, 98.0% L (2) 0 Product in glass ottle with pouring ring, see page 4 - (2) See more information related to Fat content determination in Dairy products on page

11 4048 Picric Acid moistened with ~ 33% of H2O (Reag. ) pure, 98.0% 4 a Polyethylene Glycol 400 (USP-NF, BP, ) pure, pharma grade a i 2479 Potassium Acetate for analysis g 4479 Potassium Acetate (BP, ) pure, pharma grade, % 39 Potassium Antimony(III) Tartrate 3-hydrate for analysis,, % Potassium Bromate (Reag. ) for analysis,,, 99.8% G 3489 Potassium Bromide for analysis,, 99.% Potassium Bromide (BP, USP, ) pure, pharma grade, 98.-.% 3490 Potassium Caronate (Reag. ) for analysis,,, 99.0% Potassium Caronate pure, 99% 3493 Potassium Chlorate (Reag. ) for analysis,, 99.0% Potassium Chloride for analysis,,, 99.-.% 4 4 G 9494 Potassium Chloride (USP, BP, ) pharma grade, % 3497 Potassium Chromate (max. 0.02% Na) (Reag. ) for analysis,, 99.0% Potassium Chromate pure, % 349 Potassium Cyanide (Reag. ) for analysis,,, 97.0% g 3 Potassium Dichromate for analysis,,, 99.% Potassium Dichromate 0.00 mol/l with 20 g/l of Mercury(II) Sulfate for determination of COD a 7708 Potassium Dichromate 0.02 mol/l with 80 g/l of Mercury(II) Sulfate for determination of COD a 222 Potassium Disulfite for analysis, 96.0% a 2976 Potassium Fluoride for analysis, 99% G 4708 Potassium Fluoride solution 33% pure 207 Potassium Hexachloroplatinate(IV) (Reag. USP) for analysis, 40% (as Pt) 4 a 303 Potassium Hexacyanoferrate(III) (Reag. ) for analysis,, 99.0% 4 4 G 30 Potassium Hexacyanoferrate(II) 3-hydrate (Reag. ) for analysis,,, % G 2480 Potassium Hydrogen Caronate for analysis, 99.-0% G 4480 Potassium Hydrogen Caronate (USP, BP, ) pure, pharma grade, % G Potassium Hydrogen Diiodate pure, 99% 309 Potassium di-hydrogen Phosphate for analysis,, 99.0% Potassium di-hydrogen Phosphate (USP-NF, BP, ) pure, pharma grade, % 32 di-potassium Hydrogen Phosphate anhydrous (Reag. ) for analysis,, 99.0% di-potassium Hydrogen Phosphate anhydrous for analysis, 99.0% 42 di-potassium Hydrogen Phosphate anhydrous (BP, ) pure, pharma grade, % di-potassium Hydrogen Phosphate 3-hydrate for analysis, 99% 348 Potassium Hydrogen Phthalate for analysis, 4 G 448 Potassium Hydrogen Phthalate pure, 99-0% 248 Potassium Hydrogen Sulfate for analysis, 96% G 3 Potassium Hydroxide 8% pellets for analysis,, Potassium Hydroxide 8% pellets for analysis, 8% 4 Potassium Hydroxide 8% pellets (USP-NF, BP, ) pure, pharma grade, 8.0-.% Potassium Hydroxide solution 0% pure i 340 Potassium Iodate (Reag. ) for analysis,, % Potassium Iodide for analysis,,, 99.% Potassium Iodide (USP, BP, ) pure, pharma grade, % 743 Potassium Iodide solution 0% w/v a a 324 Potassium Nitrate without anticaking (Reag. ) for analysis,, 99.0% di-potassium Oxalate -hydrate for analysis, 99.0% 4727 Potassium Permanganate (max % Hg) for analysis, Potassium Permanganate for analysis,, 99.0% 4 G g 427 Potassium Permanganate (USP, BP, ) pure, pharma grade, % 22 Potassium Peroxodisulphate (Reag. ) for analysis, 99.0% 4 43 tri-potassium Phosphate.-hydrate pure, 9% 3729 Potassium Sodium Tartrate 4-hydrate for analysis,,, % 4 4 G 43 Potassium Sorate (USP-NF, BP, ) pure, pharma grade, % 332 Potassium Sulfate (Reag. ) for analysis,,, 99.0% Potassium Sulfate pure, 98% 334 Potassium Thiocyanate (Reag. ) for analysis,,, 99.0% G 434 Potassium Thiocyanate pure, 98% 44,2-Propanediol (USP, BP,, JP) pure, pharma grade, 99.% Propanol (Reag. USP, ) for analysis,, 99.% a a i Propanol (Reag. ) for analysis,,, 99.8% a a i ; i Propanol (USP, BP, ) pure, pharma grade, 99.% i Propanol 70% v/v pure i 4962 n-propyl Gallate ( ) pure, pharma grade, % 4074 Purified Water (BP, ) pure, pharma grade 4 C 347 Pyridine (Reag. ) for analysis,, 99.% 4 4 a a i 300 Pyrogallic Acid (Reag. ) for analysis,, 99% 4 4 a USP g 0 2

12 Analytical and Pure Reagents with guaranteed specifications R-S R S 246 Red Primary Solution (BP, ) for analysis for determination of the coloration grade in liquids 29 Resazurin Sodium Salt for analysis ph indicator.0 pink; 7.0 lue violet a USP g 2 g 0 g 4603 Resorcinol (USP, BP, ) pure, pharma grade, % 4 G g 404 Salicylic Acid (USP, BP, ) pure, pharma grade, 99.-.% g SDS for analysis, for determination of surfactants 4 G SDS (USP-NF, BP, ) pure, pharma grade, 8.0% G 4632 SDS solution 0% w/v pure C 260 Sea Sand for analysis G G 462 Selenium metal powder pure, 99% 37 Silica Gel -6 mm with indicator (without coalt chloride) for analysis, 4 G g 333 Silica Gel 3- mm with indicator (with coalt chloride) for analysis, 4 G G 4247 Siliceous Earth purified and calcined (USP-NF) pure, pharma grade 349 Silver Nitrate for analysis,,, 99.8% 4 4 a a a 449 Silver Nitrate (BP, ) pure, pharma grade, % a a a a 380 Silver Sulfate for analysis,, 99.0% 4 a a a Silver Sulfate solution 0 g/l in sulfuric acid for volumetric analysis for determination of COD according to Norme Française NFT 90-0 a a Silver Sulfate solution 6.6 g/l in sulfuric acid for volumetric analysis for determination of COD a 4699 Sodium metal, 99.8%, oiled sticks, wrapped in aluminium foil pure z z 3633 Sodium Acetate anhydrous (Reag. ) for analysis,, 99.0% G g 3632 Sodium Acetate 3-hydrate for analysis,,, % 4 4 G 4632 Sodium Acetate 3-hydrate (USP, BP, ) pure, pharma grade, % 4386 Sodium L(+)-Ascorate (USP) pure, pharma grade, % 2272 Sodium Azide (Reag. USP, ) for analysis, 99.0% 4 4 a a 4637 Sodium Benzoate (USP-NF, BP, ) pure, pharma grade, % G 2302 di-sodium tetra-borate anhydrous for analysis, 98.0% flux 3644 di-sodium tetra-borate 0-hydrate for analysis,,, % 4 4 g 4644 di-sodium tetra-borate 0-hydrate (USP-NF, BP, ) pure, pharma grade, % g 2334 Sodium Borohydride for analysis a a 4646 Sodium Bromide (BP, ) pure, pharma grade, 98.-.% 3648 Sodium Caronate anhydrous (Reag. ) for analysis,, 99.% 4 4 G 4648 Sodium Caronate anhydrous (USP-NF, BP, ) pure, pharma grade, 99.-.% G 3647 Sodium Caronate 0-hydrate for analysis,, % Sodium Chloride for analysis,,, 99.% 4 4 G 469 Sodium Chloride (USP, BP,, JP) pure, pharma grade, % G Sodium Chloride pure, free-flowing, 99% G 769 Sodium Chloride ASTM B7-, 99.7% for saline spray (fog) G G 730 Sodium Chloride solution ASTM B7-, 4-6% for saline spray (fog) i 2664 Sodium Chromate for analysis, 99.0% 36 tri-sodium Citrate 2-hydrate for analysis,, 99.0% 4 G 46 tri-sodium Citrate 2-hydrate (USP, BP, ) pure, pharma grade, % 266 tri-sodium Citrate.-hydrate for analysis, 99.0% 462 Sodium Cyanide pure, 98% 4666 Sodium Dichromate 2-hydrate pure G 3668 Sodium Diethyldithiocaramate 3-hydrate (Reag. ) for analysis,, 99.0% Sodium Disulfite for analysis, 4 G 4698 Sodium Disulfite (USP-NF, BP, ) pure, pharma grade, % 367 Sodium Fluoride for analysis,,, 99.0% 4 4 G 467 Sodium Fluoride (USP) pure, pharma grade, 98.-.% G 3663 Sodium Hexanitrocoaltate(III) for analysis, 4 G 3638 Sodium Hydrogen Caronate for analysis,,, % 4 4 G 4638 Sodium Hydrogen Caronate (USP, BP, ) pure, pharma grade, % 2208 Sodium di-hydrogen Phosphate anhydrous for analysis, 99-.% 396 Sodium di-hydrogen Phosphate -hydrate (Reag. ) for analysis,, % Sodium di-hydrogen Phosphate 2-hydrate for analysis, % G 4677 Sodium di-hydrogen Phosphate 2-hydrate (USP, BP, ) pure, pharma grade, % 3679 di-sodium Hydrogen Phosphate anhydrous (Reag. ) for analysis,, 99.0% G g 4679 di-sodium Hydrogen Phosphate anhydrous (USP, BP, ) pure, pharma grade, % 27 di-sodium Hydrogen Phosphate 2-hydrate for analysis, 99.0% G 47 di-sodium Hydrogen Phosphate 2-hydrate (BP, ) pure, pharma grade, % G 3266 di-sodium Hydrogen Phosphate 7-hydrate for analysis,, % di-sodium Hydrogen Phosphate 2-hydrate for analysis,, 99-02% 4 G G 4678 di-sodium Hydrogen Phosphate 2-hydrate (USP, BP, ) pure, pharma grade, 98.-.% G Product in glass ottle with pouring ring, see page 4 - (2) See more information related to Fat content determination in Dairy products on page

13 USP 2 g 0 g 3687 Sodium Hydroxide pellets for analysis,,, 98.0% 4 4 G 4687 Sodium Hydroxide pellets (USP-NF, BP, ) pure, pharma grade, % 488 Sodium Hydroxide micropearls (USP-NF) pure, pharma grade, % 4929 Sodium Hydroxide pearls (USP-NF, BP, ) pure, pharma grade, % Sodium Hydroxide solution 0% w/w pure i 47 Sodium Hydroxide solution 0% w/v pure i 7220 Sodium Hydroxide solution 40% w/w for the determination of nitrogen i ic i 4220 Sodium Hydroxide solution 40% w/w pure i 293 Sodium Hydroxide solution 40% w/v for analysis for the N determination in milk according to :2004 i Sodium Hydroxide solution 32% w/w for the determination of nitrogen i i i Sodium Hydroxide solution 32% w/w for analysis i Sodium Hydroxide solution 32% w/v for the determination of nitrogen i 7690 Sodium Hydroxide solution 30% w/v i Sodium Hydroxide solution 2% w/w pure i Sodium Iodate for analysis, 99.0% 3726 Sodium Iodide for analysis,, 99.% 4 a a Sodium Lactate solution 0% w/w (USP, BP, ) pure, pharma grade 370 Sodium Molydate 2-hydrate (Reag. ) for analysis,, % Sodium Molydate 2-hydrate pure, % 3702 Sodium Nitrate (Reag. ) for analysis,, G 3703 Sodium Nitrite (Reag. ) for analysis,, 98.0% G 3706 di-sodium Oxalate (Reag. USP, ) for analysis,, 99.% G 370 Sodium Pentacyanonitrosoferrate(III) 2-hydrate (Reag. ) for analysis,, % Sodium Perorate 4-hydrate (BP, ) pure, pharma grade, % Sodium Perchlorate -hydrate (Reag. USP) for analysis,, % Sodium meta-periodate (Reag. ) for analysis,, % Sodium Peroxide granulated for analysis,, 9.0% Sodium Peroxodisufate pure 468 tri-sodium Phosphate -hydrate pure, 9% G 3680 tri-sodium Phosphate 2-hydrate (Reag. ) for analysis,, % 4 4 G g 706 Sodium Plumite solution (Doctor solution) sulfide reagent 4684 Sodium Polyphosphate pure, 6-70% (as P2O) 270 tetra-sodium Pyrophosphate 0-hydrate for analysis, 99.0% G 289 Sodium Salicylate for analysis, 99.% 489 Sodium Salicylate (USP, BP, ) pure, pharma grade, % G 4276 Sodium Selenite anhydrous pure, 99% 376 Sodium Sulfate anhydrous (Reag. USP) for analysis,,, 99.0% G 37 Sodium Sulfate 0-hydrate (Reag. USP) for analysis, Sodium Sulfite anhydrous for analysis,, 98.0% 4 G 977 Sodium Sulfite anhydrous (BP, ) pharma grade, 9.0-.% G 279 Sodium Tartrate 2-hydrate (Reag. ) for analysis, % 4 G G 2879 Sodium Thiosulfate anhydrous for analysis, 99.0% G 372 Sodium Thiosulfate -hydrate for analysis,, % 4 G 472 Sodium Thiosulfate -hydrate (USP, BP, ) pure, pharma grade, % Sodium tetra-phenylorate (Reag. ) for analysis,, 99.% 4 4 a a a 2096 Starch from Potato solule (Reag. USP, ) for analysis, indicator for iodometry 4 G 4307 Strontium Chloride 6-hydrate pure 3883 Succinic Acid (Reag. USP, ) for analysis, D(+)-Sucrose for analysis, 4 G G 462 D(+)-Sucrose (USP-NF, BP,, JP) pure, pharma grade Sulfanilamide (Reag. ) for analysis, 99.0% Sulfanilamide ( Fr., DAB) pure, pharma grade, 99-0% 307 Sulfanilic Acid (Reag. ) for analysis,, % Sulfosalicylic Acid 2-hydrate for analysis, % Sulfuric Acid 98% for the determination of nitrogen a a i 4708 Sulfuric Acid 9-98% (max % Hg) for analysis,, 4 4 a a i w 308 Sulfuric Acid 96% for analysis, 4 a a i i 408 Sulfuric Acid 9-98% (USP-NF, BP, ) pure, pharma grade a a i A06 Sulfuric Acid 9-97% for analysis i 708 Sulfuric Acid 96% ± 0.% Viscosimetry grade 200 Sulfuric Acid 90-9% according to Gerer for analysis, for determination of fat in milk a a i i (2) Sulfuric acid 7% for analysis Sulfuric Acid 72% for analysis 7323 Sulfuric Acid 62% (d=.22) according to Van Gulik for analysis for determination of fat in cheese a i (2) Sulfuric Acid 0% pure 2702 Sulfuric Acid 40% for analysis Sulfuric Acid 2% for analysis Sulfuric Acid 20% pure 2882 Sulfuric Acid 0% for analysis i 4882 Sulfuric Acid 0% pure 8 L L 3

14 Analytical and Pure Reagents with guaranteed specifications T-Z T U V W X Y Z USP g 0 g 90 g 4733 Talc washed (BP, ) pure, pharma grade Tannic Acid (USP, BP, ) pure, pharma grade g 3066 L(+)-Tartaric Acid for analysis,, 99.0% L(+)-Tartaric Acid pure, 99.% 44 Tetrachloroethylene pure, 99.% a a Tetrafluorooric Acid solution 0% pure L 60 L 3337 Tetrahydrofuran stailized with ~ 300 ppm of BHT for analysis,, 99.% 4 a a z ; Thimerosal (USP, BP, ) pure, pharma grade, % 4 a Thioacetamide (Reag. ) for analysis,, 99.0% 4 4 a 2442 Thioglycolic Acid for analysis, 99% a 4204 Thioglycolic Acid 80% pure, 79-82% a a 4743 Thiourea pure, 98% 9738 Thymol ( ) pharma grade 3739 Thymolphthalein for analysis, ph indicator 9.3 colourless; 0. lue 4 a Tin(II) Chloride 2-hydrate (max % Hg) for analysis,, % 4 a 3303 Tin(II) Chloride 2-hydrate (Reag. ) for analysis,, % a a a G 4303 Tin(II) Chloride 2-hydrate pure, 97% a a 420 Titanium(IV) Oxide (USP, BP, ) pure, pharma grade, % 4 G 2744 o-tolidine (Reag. USP, ) for analysis, 98.0%, chlorine reagent 4 4 a 7247 o-tolidine solution 0.%, chlorine reagent a a 374 Toluene (Reag. ) for analysis,,, 99.8% a a z s Toluene / 2-Propanol / Water :99: v/v/v (Mixture TAN) (ASTM D 664) for analysis a ; 3067 Trichloroacetic Acid (Reag. ) for analysis, 4 4 a a a 4067 Trichloroacetic Acid (BP, ) pure, pharma grade, % a a a 4749 Trichloroethylene, stailized with ethanol pure, 99.% a 270 Triethanolamine for analysis, 99.0% a 470 Triethanolamine (USP-NF) pure, pharma grade, % a i 2342 Triethylamine (Reag. USP) for analysis, 99.% 4 a Triethyl Citrate (, USP-NF) pure, pharma grade, % 3940 Tris for analysis,, % Tris (USP, BP, ) pure, pharma grade, % G 4234 Triton X pure, surfactant for automatical analysis a i 4232 Tween 20 (USP-NF, BP, ) pure, pharma grade a i 4200 Tween 80 (USP-NF, BP, ) pure, pharma grade a i 374 Urea crystalline for analysis,, % 4 G 974 Urea crystalline (USP, BP, ) pharma grade, 99.-.% Urea pearls pure, 98.% Vanadate-Molydate Reagent for determination of phosphates Vanillin (USP-NF, BP, ) pure, pharma grade, % 4 43 Vaseline Oil (USP, BP, ) pure, pharma grade 4 i 3074 Water for analysis, 4 i C i i Wide Spectrum Microtalets I for preserving milk samples. Talets of 8 mg 7387 Wide Spectrum Microtalets II for preserving milk samples. Talets of 8 mg 3769 Xylene - Mixture of isomers (Reag. ) for analysis,,, 99.0% a ~ a z s 4769 Xylene - Mixture of isomers pure, 98% ~ a 3267 Xylenol Orange Tetrasodium Salt for analysis, for complexometry 4 a D(+)-Xylose (BP, ) pure, pharma grade 4 24 Yellow Primary Solution (BP, ) for analysis for determination of the coloration grade in liquids 4783 Zinc metal, powder pure a G 377 Zinc Acetate 2-hydrate (Reag. USP, ) for analysis, G 3779 Zinc Chloride for analysis,, 97.0% Zinc Chloride pure, 97% 9779 Zinc Chloride (, USP) pharma grade, % 3786 Zinc Oxide for analysis,, 99.0% Zinc Sulfate -hydrate (USP,, BP) pure, pharma grade, % 4787 Zinc Sulfate 7-hydrate (USP, BP, ) pure, pharma grade, % 3787 Zinc Sulfate 7-hydrate for analysis,, % 4 4 Product in glass ottle with pouring ring, see page 4

15 Fat content determination in Dairy products During their handling and processing, milk and dairy products are sujected to stringent analytical controls to guarantee their composition and quality. Commission Regulation (EC) No 273/2008, Commission Regulation (EC) No 273/2008 lays down, lays down parameters to determine the reference limits and methods for the chemical, physical and microiological analysis, and for the organoleptic evaluation of milk and dairy products. Fat content is one of the most important parameters ecause: This parameter impacts on the price paid per liter of milk. It is used to determine if a sample of milk or cheese complies with estalished legal values. It is necessary to know its value to classify the milk for the preparation of derivatives. There are two typical methods for determining the content of fat in milk and cheese: Mojonnier method: gravimetric method that uses organic solvents to extract fat. Susequently the solvent is evaporated and the fat is determined y weighing the dry fatty extract. Gerer method: volumetric method that uses chemical reagents (sulfuric acid, detergents) to achieve the reaking of the emulsion and the fat separation. Then the fat content is measured in special flask (utyrometer). Milk Cheese Gravimetric method ( 2) Butyrometer method (Gerer method) ( 2446) Gravimetric method ( 73) Butyrometer method (Van Gulik method) ( 3433) Ammonia 2% (as NH3) (Reag. USP, ) for analysis Amyl Alcohol according to NF V for analysis 27 4 Congo Red (C.I. 2220) for analysis 26 4 Diethyl Ether stailized with ~6 ppm of BHT (Reag. ) for analysis,, Ethanol 96% v/v for analysis, Hydrochloric Acid 2% for analysis, Isoamyl Alcohol according to Gerer for analysis Petroleum Ether C for analysis,, Sulfuric Acid 90-9% according to Gerer for analysis Sulfuric Acid 62% (d=,22) according to Van Gulik for analysis Packaging symols: Polyethylene ottle a Glass ottle G Polypropylene ucket with handle i Polyethylene canister 2 Glass ottle coated with plastic z Aluminium ottle g Carton drum with inner polyethylene ag s Steel-plated drum y Aluminium ottle with outer packaging r Glass ottle with outer packaging 0 Tin-plated can w Drum with polyethylene lining inside and metal outside C Sol-Pack: Polyethylene container in a carton ox (cuitainer), with tap d Glass tue with screw top Co-extrusion jerrycan (multilayer) ~ Co-extrusion ottle (multilayer) ; Stainless steel drum (returnale) Fluorinated polyethylene canister Because of the continuous updating of our catalog of products and presentations, kindly confirm product availaility, through our wesite.

16 A77,EN;20707 PanReac Química SLU C/ Garraf 2, Polígono Pla de la Bruguera E-082 Castellar del Vallès (Barcelona) Spain Phone Fax AppliChem GmH Ottoweg 4 DE-6429 Darmstadt Germany Phone Fax info.de@itwreagents.com Nova Chimica Srl Via G. Galilei, 47 I Cinisello Balsamo (Milano) Italy Phone Fax info.it@itwreagents.com