ASTM D3160-03
(Test Method)Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
SCOPE
1.1 This test method covers the determination of phenol in the range from 0.25 to 50 mg/kg in refined cumene (isopropylbenzene) or AMS (-methylstyrene).
1.2 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E 29.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
Designation: D 3160 – 03
Standard Test Method for
Phenol Content of Cumene (Isopropylbenzene) or AMS
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(α–Methylstyrene)
This standard is issued under the fixed designation D 3160; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (ϵ) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This test method covers the determination of phenol in 4.1 This test method is useful in determining phenol in the
the range from 0.25 to 50 mg/kg in refined cumene (isopropy- range from 0.25 to 50 mg/kg in commercially available
lbenzene) or AMS (α–methylstyrene). cumene or AMS.
1.2 In determining the conformance of the test results using 4.2 Phenol will inhibit certain reactions involving cumene
this method to applicable specifications, results shall be or AMS.
rounded off in accordance with the rounding-off method of
5. Apparatus
Practice E 29E29.
5.1 Balance—Any balance capable of measuring weights to
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the the nearest 0.001 g.
5.2 Spectrophotometer—Any spectrophotometer that can
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- measure 0 to 2 absorbance units at 472 nm with a wavelength
repeatability of 5 nm.
bility of regulatory limitations prior to use. For specific hazard
statements, see Section 7. 5.3 Spectrophotometer Cells, 2 cm.
5.4 Separatory Funnel,2L.
2. Referenced Documents
5.5 Volumetric Flask, 100 mL.
2.1 ASTM Standards: 5.6 Pipettes,1,2,3,and5mL.
2 6
D 1193 Specification for Reagent Water 5.7 Filter Paper.
D 3437 Practice for Sampling and Handling Liquid Cyclic
3 6. Reagents
Products
6.1 Purity of Reagents—Reagent grade chemicals shall be
E29 Practice for Using Significant Digits in Test Data to
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Determine Conformance with Specifications used.
6.2 PurityofWater—Unless otherwise indicated, references
2.2 Other Document:
OSHA Regulations,29 CFR, Paragraphs 1910.000 and to water shall be understood to mean reagent water as defined
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by Type I or II of Specification D 1193D 1193.
1910, 1200.
6.3 Cumene or AMS—Wash 1 L of cumene or AMS with
3. Summary of Test Method
5 % aqueous sodium hydroxide in a separatory funnel. Discard
3.1 The phenol content of cumene orAMS is determined by theaqueoussodiumhydroxidephaseandfilterthehydrocarbon
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the color development of phenol with 4-aminoantipyrine. The through dry filter paper. Store the hydrocarbon under a
sample absorbance is compared to phenol standards at 472 nm nitrogenblanket.Thepreviousstepsaretakentoensurethatthe
on a spectrophotometer. hydrocarbon will not contain phenol or peroxides.
6.4 Solution of 4-Amino-Antipyrine— Dissolve 3.00 g of
amino-antipyrine in distilled water and dilute to volume in a
dark amber 100-mLvolumetric flask. This should be stable for
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This test method is under the jurisdiction of ASTM Committee D16 on
two weeks.
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.07 on Styrene, Ethylbenzene, and C and C Aromatic 6.5 Ammonium Persulfate Solution—Dissolve 2.00 g of
9 10
Hydrocarbons.
ammonium persulfate in distilled water and dilute to volume in
Current edition approved Jan. 10, 2003. Published March 2003. Originally
a 100-mLvolumetric flask.Afresh solution should be made up
approved in 1991. Last previous edition approved in 1996 as D 3160 – 96a.
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weekly.
Annual Book of ASTM Standards, Vol 11.01.
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Annual Book of ASTM Standards, Vol 06.04.
4
Annual Book of ASTM Standards, Vol 14.02.
5 6
AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments, Filter paper, IPS available from Whatman Inc., 9 Bridewell Place, Clifton, NJ
732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401. 07014 or equivalent, have been found suitable for this purpose.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Please contact ASTM International (www.astm.org) for the latest information.
D3160–03
6.6 Ammonium Hydroxide, 0.880 specific gravity. 10. Procedure
6.7 Isopropyl Alcohol, reagent grade.
10.1 Use the procedure described in 9.3.1-9.3.4 using
6.8 Sodium Hydroxide, 5 % weight in distilled water.
3.00-g sample instead of a standard solution.
10.2 Obtain the milligram per kilogram phenol in the
7. Hazards
sample from the curve prepared in 9.3.5.
7.1 Some materials used in this test method are toxic or
NOTE 1—This cu
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