According to EC Directive 91/155/EEC from CD-ROM 2001/1 Date of issue: Supersedes edition of

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1 Safety data sheet Schuchardt According to EC Directive from CD-ROM 2001/1 Date of issue: Supersedes edition of Identification of the substance/preparation and of the company/undertaking Identification of the product Manufacturer/supplier identification Company: Dr. Theodor Schuchardt & Co * Hohenbrunn * Germany * Tel: /802-0 Emergency telephone No.: 2. Composition/information on ingredients Synonyms Sodium bisulfite, Sodium bisulfite solution, Bisulfite Hazardous ingredients: Please contact the regional Merck representation in your country. Dr. Theodor Schuchardt & Co. Name according to EC Directives: CAS-No. EC No.: EC-Index-No. Labelling according to EC Directives Content: sodium hydrogen sulfite Xn 39 % R Hazards identification Harmful if swallowed. Contact with acids liberates toxic gas. 4. First aid measures After inhalation: fresh air. After skin contact: wash off with plenty of water. Remove contaminated clothing. After eye contact: rinse out with plenty of water with the eyelid held wide open. Summon eye specialist. After swallowing: make victim drink plenty of water, induce vomiting, summon doctor. 5. Fire-fighting measures Suitable extinguishing media: In adaption to materials stored in the immediate neighbourhood. Special risks: Non-combustible. Development of hazardous combustion gases or vapours possible in the event of fire. The following may develop in event of fire: sulfur oxides. Special protective equipment for fire fighting: Do not stay in dangerous zone without suitable chemical protection clothing and self-contained breathing apparatus. Other information: Contain escaping vapours with water. Prevent fire-fighting water from entering surface water or groundwater. chemdat.merck.de - The Merck Chemical Database - online Page 1 of 5

2 6. Accidental release measures Person-related precautionary measures: Do not inhale vapours/aerosols. Avoid substance contact. Ensure supply of fresh air in enclosed rooms. Environmental-protection measures: Do not allow to enter sewerage system. Procedures for cleaning / absorption: Take up with liquid-absorbent material (e.g. Chemizorb ). Forward for disposal. Clean up affected area. 7. Handling and storage Handling: No further requirements. Storage: At +15 C to +25 C. Tightly closed. 8. Exposure controls/personal protection Personal protective equipment: Protective clothing should be selected specifically for the working place, depending on concentration and quantity of the hazardous substances handled. The resistance of the protective clothing to chemicals should be ascertained with the respective supplier. Respiratory protection: required when vapours/aerosols are generated. Eye protection: required Hand protection: required Industrial hygiene: Change contaminated clothing. Application of skin-protective barrier cream recommended. Wash hands and face after working with substance. 9. Physical and chemical properties Form: liquid Colour: colourless to yellowish Odour: slightly pungent ph value at 22 g/l H 2 O (20 C) Viscosity dynamic (20 C) 4.3 mpa*s Melting point -44 C Boiling point 146 C Ignition temperature Flash point Explosion limits lower upper Vapour pressure (20 C) 40 hpa Density (20 C) ~ 1.34 g/cm 3 chemdat.merck.de - The Merck Chemical Database - online Page 2 of 5

3 Solubility in water (20 C) soluble Thermal decomposition > 150 C 10. Stability and reactivity Conditions to be avoided no information available Substances to be avoided oxidizing agent, acids (Formed could be: sulfur dioxide). Hazardous decomposition products in the event of fire: See chapter Toxicological information Acute toxicity LD 50 (oral, rat): 1540 mg/kg (calculated on the pure substance). Subacute to chronic toxicity No impairment of reproductive performance in animal experiments. No teratogenic effect in animal experiments. Bacterial mutagenicity: Salmonella typhimurium: negative. Ames-Test: negative. Further toxicological information After inhalation of vapours/aerosols: slight mucosal irritations. After skin contact: Slight irritations. After eye contact: Slight irritations. After swallowing: irritations of mucous membranes in the mouth, pharynx, oesophagus and gastrointestinal tract. Further data Further hazardous properties cannot be excluded. The product should be handled with the care usual when dealing with chemicals. 12. Ecological information Biologic degradation: Methods for the determination of biodegradability are not applicable to inorganic substances. Ecotoxic effects: Biological effects: Fish toxicity: Gambusia affinis LC 50 : 240 mg/l /96 h (calculated on the pure substance); L.idus LC 50 : 200 mg/l /48 h (calculated on the pure substance); Daphnia toxicity: Daphnia magna EC 50 : 119 mg/l /48 h (calculated on the pure substance); Algeal toxicity: Sc.quadricauda IC 0 : 8.2 mg/l /30 min (calculated on the pure substance). Further ecologic data: No ecological problems are to be expected when the product is handled and used with due care and attention. chemdat.merck.de - The Merck Chemical Database - online Page 3 of 5

4 13. Disposal considerations Product: There are no uniform EC Regulations for the disposal of chemicals or residues. Chemical residues generally count as special waste. The disposal of the latter is regulated in the EC member countries through corresponding laws and regulations. We recommend that you contact either the authorities in charge or approved waste disposal companies which will advise you on how to dispose of special waste. Packaging: Disposal in compliance with official regulations. Handle contaminated packaging in the same way as the substance itself. If not officially specified differently, non-contaminated packaging may be treated like household waste or recycled. 14. Transport information Land transport GGVS, GGVE, ADR, RID 8/17c Name 2693 HYDROGENSULFITE,WAESSRIGE LOESUNG,N.A.G. (NATRIUMHYDROGENSULFIT(39%IGE LOESUNG IN WASSER) River transport ADN, ADNR not tested Sea transport IMDG, GGVSee 8/UN 2693/PG III Ems 8-08 MFAG 635 Name BISULPHITES,AQUEOUS SOLUTION,N.O.S. (SODIUM BISULPHITE SOLUTION) Air transport Name ICAO, IATA 8/UN 2693/PG III BISULPHITES,AQUEOUS SOLUTION,N.O.S. (SODIUM BISULPHITE SOLUTION) The transport regulations are cited according to international regulations and in the form applicable in Germany (GGVS/GGVE). Possible national deviations in other countries are not considered. 15. Regulatory information Labelling according to EC Directives Symbol: Xn Harmful R-phrases: Harmful if swallowed. Contact with acids liberates toxic gas. S-phrases: Avoid contact with eyes. If swallowed, seek medical advice immediately and show this container or label. chemdat.merck.de - The Merck Chemical Database - online Page 4 of 5

5 16. Other information Reason for alteration Change in supplement to physical/chemical parameters. General update. Regional representation: This information is given on the authorised Safety Data Sheet for your country. The information contained herein is based on the present state of our knowledge. It characterizes the product with regard to the appropriate safety precautions. It does not represent a guarantee of the properties of the product. chemdat.merck.de - The Merck Chemical Database - online Page 5 of 5