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. इंटरनेट मानक “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” “प0रा1 को छोड न’ 5 तरफ” Jawaharlal Nehru “Step Out From the Old to the New” “जान1 का अ+धकार, जी1 का अ+धकार” Mazdoor Kisan Shakti Sangathan “The Right to Information, The Right to Live” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 5754 (1998): Phenyl Acetic Acid, Perfumery Grade [PCD 18: Natural and Synthetic Fragrance Materials]
Transcript
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.
इंटरनेट मानक
“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda
“Invent a New India Using Knowledge”
“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru
“Step Out From the Old to the New”
“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan
“The Right to Information, The Right to Live”
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
“Invent a New India Using Knowledge”
है”ह”ह
IS 5754 (1998): Phenyl Acetic Acid, Perfumery Grade [PCD18: Natural and Synthetic Fragrance Materials]
IS 5754:1998
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Indian Standard
PHENYLACETICACID,PERFUMERY GRADE- SPECIFICATION
( Second Revision )
ICS 71.080.90.71.100.70
0 BIS 1998
BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI l10G02
December 1998 Price Group 2
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 1970. 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 by the following structural formula:
yH2COOH / c \ 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 197.5.
Givaudan index. Ed 2. 1961. 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.
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:
IS No.
326
Title
Methods of sampling and test for natural and synthetic perfumery materials:
(Part 1) : 1984 Sampling (second revision)
(Part 6) : 1987 Determination of solubility (second revision)
(Part 18) : 1984 Determination of freezing point (second revision)
-1070 : 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 given in IS 6597 shall apply.
4 REQUIREMENTS
4.1 Description
The material shall be a synthetic product consisting of white crystals.
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 2284.
4.4 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.
(1)
i)
ii)
iii)
iv)
v)
Characteristic Requirement Method of Tesst, Ref to
%nex L’S ’
(2) (3) Odour Rosaceous with
sweet honey-like suggestion
Melting point, 16-71 “C Total acids, calculated 99.5 as CsHsOz, percent by mass, Min Fnxdom from halo- To pass the test genated compounds
Freedom from sulphur To pass the test
(4) (5) - Clause 4and5
of 2284
- 326 (Part 16)
A -
B -
c -
5 PACKING
5.1 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.
5.2.1 BIS Certification Marking
The container may also be marked with the Standard Mark.
5.2.2 The use of Standard Mark is governed by the provisions of the Bureau oj’ Indian Standards Act,
1
IS 5754 : 1998
1986 and theRules and Regulations made thereunder. 6.3 Criteria for Conformity The details of conditions under which the licence for the. use of the Standard Mark may be granted to
The lot shall be considered as conforming to the
manufactures or producers may be obtained from the specification, if the composite sample satisfies all the
Bureau of Indian Standards. requirements specified in this standard.
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
Unless suecified otherwise, pure chemicals and 6.2 Number of Tests
Test for the determination of all the characteristics distilled water (see IS 1070) shall be employed in tests.
shall be conducted on the composite sample. NOTE - ‘Pure Chemicals’ shall mean chemicals that do not contain impurities which affect the results of analysis.
ANNEX A
[Table 1, SZ No. (iii)]
DETERMINATION OF TOTAL ACIDS
A-l GENERAL A-3 PROCEDURE
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
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
A-2.1 Standard Sodium Hydroxide Solution
0.1 N.
Total acids, as phenyl acetic acid
(CsHsO2), percent by mass = 1.36 5
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
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
B-2.1 Copper Wire Place the copper strip in the non-luminous flame of the 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
IS 5754 : 1998
2 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 Micro Test Tube
C-2.2 Glycerol Bath
C-2.3 Heating Mantle
C-3 REAGENTS
C-3.1 Concentrated Perchloric or Nitric Acid
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 presence of sulphur impurities) should not be
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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 ).
Amend No.
Amendments Issued Since Puldic~tion
Date of Issue Text Affected
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