Disclosure to Promote the Right To Information

Transcription

1 इ टरन ट म नक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live प0र 1 क छ ड न' 5 तरफ Jawaharlal Nehru Step Out From the Old to the New IS 5754 (1998): Phenyl Acetic Acid, Perfumery Grade [PCD 18: Natural and Synthetic Fragrance Materials]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen

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4 IS 5754:1998 v7imm Indian Standard PHENYLACETICACID,PERFUMERY GRADE- SPECIFICATION ( Second Revision ) ICS BIS 1998 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI l10g02 December 1998 Price Group 2

5 Natural and Synthetic Perfumery Materials, PCD 18 FOREWORD This Indian Standard (Second Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Natural and Synthetic Perfumery Materials Sectional Committee had been approved by the Petroleum, Coal and Related Products Division Council. This standard was first published in Subsequently it was revised in 1988 in order to meet the need of the industry. In the first revision instead of two grades, only the perfumery grade of the phenyl acetic acid was included. The requirement of freedom from chlorinated compound was also included. Phenyl acetic acid, also named as alpha toluic acid, is found in oils of rose, neroli and tobacco leaf. It is useful in the preparation of perfumery compounds suitable for soaps, AGARBATTIES and other preparations. It is also used for pharmaceutical purposes and is represented c /\ by the following structural formula: yh2cooh I PHENYL ACETIC ACID (Molecular Formula CsHsO2) (Molecular Weight = 136 g) Phenyl acetic acid is commonly made in the country from benzyl chloride via benzyl cyanide. It is also produced as a by-product from pharmaceutical industry. Therefore, the Sectional Committee responsible for the preparation of this standard felt that it should be revised in view of the different sources of its production. Phenyl acetic acid, produced as a by-product of pharmaceutical industry is likely to have bromide as residual constituent. Therefore, the requirement and method of test for freedom from chlorinated compounds have been suitab!y modified as freedom from halogen impurities. The requirement for freedom from sulphur impurities have also been included. In the preparation of this standard, considerable assistance has been derived from the following publications: E.O.A. Specification No. 19 Phenyl acetic acid (revised). Essential Oil Association of USA, Inc., New York Givaudan index. Ed Givaudan Delawanna Inc., New York. For the purpose of deciding whether a particular requirement of this standard! is complied with, the final value, observed or calculated, expressing the results of a test or analysis, shall be rounded off in accordance with IS 2 : 1960 Rules for rounding off numerical values (revised).the number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

6 IS 5754 : 1998 Indian Siandard PHENYL ACETIC ACID, PERFUMERY GRADE m SPECIFICATION ( Second Revision ) 1 SCOPE This standard prescribes the requirements and methods of sampling and test for phenyl acetic acid for use in perfumery. 2 NORMATIVE REFERENCES The following standards contain provisions which through reference in this text constitute the provisions of the standards. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below: 326 IS No. (Part 1) : 1984 Sampling Title Methods of sampling and test for natural and synthetic perfumery materials: (second revision) (Part 6) : 1987 Determination of solubility (second revision) (Part 18) : 1984 Determination of freezing point (second revision) : 1992 Reagent grade water (third revision) 2284 : 1988 Methods for olfactory assessment of natural and synthetic perfumery materials Cfirst revision) 2508 : 1984 Low density polyethylene films (second revision) 6597 : 1988 Glossary of terms relating to natural and synthetic perfumery materials (first revision) 3 TERMINOLOGY For the purpose of this standard, definitions IS 6597 shall apply. 4 REQUIREMENTS 4.1 Description given in The material shall be a synthetic product consisting white crystals. of 4.2 Solubility The material shall be clearly soluble in 2 volumes of ethanol (50 percent %y volume) when tested as prescribed in IS 326 (Part 6). 4.3 The material shall also be tested olfactorily and especially for by-notes as prescribed under 4 and 5 of IS The material shall also comply with the Tequirements given in Table 1. Table 1 Requirements for Phenyl Acetic Acid, Perfumery Grade (Clause 4.4) SI No. Characteristic Requirement Method of Tesst, Ref to %nex L S (1) i) Odour (2) (3) Rosaceous with sweet honey-like suggestion ii) Melting point, C iii) Total acids, calculated as CsHsOz, percent by 99.5 mass, Min iv) Fnxdom from halo- To pass the test genated compounds v) Freedom from sulphur To pass the test 5 PACKING (4) (5) - Clause 4and5 of (Part 16) A - B - c The material shall be packed in fibreboard boxes with polyethylene lined (see IS 2508) or lacquered metal containers as may be agreed to between the purchaser and the supplier. 5.2 The material shall be protected from light and stored in a cool place BIS Certification Marking The container Mark. may also be marked with the Standard The use of Standard Mark is governed by the provisions of the Bureau oj Indian Standards Act, 1

7 IS 5754 : and therules and Regulations made thereunder. 6.3 Criteria for Conformity The details of conditions under which the licence for The lot shall be considered as conforming to the the. use of the Standard Mark may be granted to specification, if the composite sample satisfies all the manufactures or producers may be obtained from the requirements specified in this standard. Bureau of Indian Standards. 7 TEST METHODS 6 SAMPLING 7.1. Test shall be conducted as prescribed in 4.2, and 6.1 Representative samples of the material may be appropriate references as given in co1 4 of Table 1. drawn as prescribed in 1s 326 (Part 1). 7.2 Quality of Reagents 6.2 Number of Tests Test for the determination of all the characteristics shall be conducted on the composite sample. ANNEX A [Table 1, SZ No. (iii)] DETERMINATION OF TOTAL ACIDS A-l GENERAL A-3 PROCEDURE Unless suecified otherwise, pure chemicals and distilled water (see IS 1070) shall be employed in tests. NOTE - Pure Chemicals shall mean chemicals that do not contain impurities which affect the results of analysis. A-l.1 Outline of the Method Total acids are determined by direct titration of the material, dissolved in dilute ethanol, with sodium hydroxide solution using phenolphthalein as indicator. A-2 REAGENTS A-2.1 Standard Sodium Hydroxide Solution 0.1 N. A-2.2 Phenolphthalein Indicator Prepared by dissolving 0.1 g of phenolphthalein in 100 ml of ethanol (60 percent by volume). A-2.3 Dilute Ethanol Weigh accurately about 0.5 g of the material into a conical flask. Dissolve in 25 ml of dilute ethanol, add a few drops of the indicator and titrate with sodium hydroxide solution to pink colour. A-4 CALCULATION Total acids, as phenyl acetic acid (CsHsO2), percent by mass = where v = volume of standard sodium hydroxide solution (0.1 N) required, and M= mass in g of material taken for the test. Aqueous ethanol (50 percent by volume), neutralized with sodium hydroxide solution using 3 drops of phenolphthalein indicator solution. ANNEX B [Table 1, SZ No. (iv)] TEST FOR FREEDOM FROM-HALOGENATED COMPOUND B-l GENERAL B-2.2 Dropper Absence of even a green, bluish green, purplish or B-2-3 Bunsen Burner purple colour, when the material is ignited on a copper gauze in a non-luminous flame, is used for Capable of giving good non-luminous flame. determining freedom from halogenated compounds. B-3 PROCEDURE B-2 APPA~RATUS Place the copper strip in the non-luminous flame of the B-2.1 Copper Wire Bunsen burner until it glows without imparting a green Bent at one~end to which a strip of 850 micron copper colour. Cool the gauze and repeatedly ignite it until gauge 1.5 cm wide and 5 cm long is attached. an oxide coating has formed. Cool the gauze and add 2

8 IS 5754 : drops of the test material and burn as before. non-luminous flame whose height has been adjusted Continue the procedure until 6 drops have been to about 4 cm. ignited. Hold the gauze in the outer edge of the The flame shall be free of even a transient green/purple colour. ANNEX C [Table 1, SZ No. (v)] TEST FOR FREEDOM FROM SULPHUR C-l GENERAL C-4 PROCEDURE Absence of a white precipitate or turbidity when the material is treated with barium chloride, is used for determining freedom from sulphur. C-2 APPARATUS C-2.1 C-2.2 C-2.3 Micro Test Tube Glycerol Bath Heating Mantle C-3 REAGENTS A small amount of the test material is placed in a micro test tube. After evaporation to dryness if need be, 2 or 3 drops of concentrated perchloric acid or concentrated nitric acid are added and the test tube is immersed in a glycerol bath, preheated to around 15O C, and whose temperature is gradually raised to 200 C. After 5 min at this temperature, the contents of the test tube are cooled and then 1 or 2 drops of water and 1 drop of 0.5 percent barium chloride solution are added. A white precipitate or turbidity (indicative of the C-3.1 Concentrated Perchloric or Nitric Acid presence of sulphur impurities) should not be C-3.2 Barium Chloride Solution, 0.5 percent. produced. 3

9 Bureau of Indian Standards BIS is a statutory institution established under the Bureau of hdiart Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course 01 implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publication), BIS. Review of Indian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of BIS Handbook and Standards Monthly Additions. This Indian Standard has been developed from Dot: No. PCD 18 ( 1505 ). Amendments Issued Since Puldic~tion Amend No. Date of Issue Text Affected Headquarters: BUREAU OF INDIAN STANDARDS Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi Telegrams: Manaksanstha Telephones: , , (Common to all offices) Regional Offices: Central : Eastern : Northern : Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI l/14 C.I.T. Scheme VII M, V.I.P. Road, Maniktola CALCUTTA SC , Sector 34-A, CHANDIGARH Telephone , , , { Southern : Western : Branches : C.I.T. Campus, IV Cross Road, CHENNAI Manakalaya, E9 MIDC, Marol, Andheri (East) MUMBAI AHMADABAD. BANGALORE. BHGPAL..BHUBANESHWAR. COIMBATORE. FARIDABAD. GHAZIABAD. GUWAHATI. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR. PATNA. PUNE. THIRUVANANTHAPURAM , , , , Printed at Simco Printing Press, Delhi, India