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ASTM D3160-96a

(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 ([alpha]-methylstyrene).
1.2 The following applies to all specified limits in this test method: for purposes of determining conformance with this test method, an observed value or a calculated value shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.
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

Status
Historical
Publication Date
31-Dec-1995
ICS
71.080.15 - Aromatic hydrocarbons
Technical Committee
D16 - Aromatic, Industrial, Specialty and Related Chemicals
Drafting Committee
D16.07 - Styrene, Ethylbenzene and C9 and C10 Aromatic Hydrocarbons
Current Stage
Ref Project

Relations

Replaced By
ASTM D3160-03 - Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
Effective Date
10-Jan-2003
Referred By
ASTM D4077-23 - Standard Specification for Cumene (Isopropylbenzene)
Effective Date
01-Jan-1996
Referred By
ASTM D6367-21 - Standard Specification for AMS (α-Methylstyrene)
Effective Date
01-Jan-1996
Referred By
ASTM D7125-23 - Standard Specification for Cumene (Isopropylbenzene) Manufactured Via a Zeolite Process
Effective Date
01-Jan-1996

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ASTM D3160-96a - Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)ASTM D3160-96a - Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
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ASTM D3160-96a - Standard Test Method for Phenol Content of Cumene (Isopropylbenzene) or AMS (alpha-Methylstyrene)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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.
Designation: D 3160 – 96a
Standard Test Method for
Phenol Content of Cumene (Isopropylbenzene) or AMS
(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
4.1 This test method is useful in determining phenol in the
1.1 This test method covers the determination of phenol in
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 The following applies to all specified limits in this test 4.2 Phenol will inhibit certain reactions involving cumene
method: for purposes of determining conformance with this or AMS.
test method, an observed value or a calculated value shall be
5. Apparatus
rounded off “to the nearest unit” in the last right-hand digit
5.1 Balance—Any balance capable of measuring weights to
used in expressing the specification limit, in accordance with
the rounding-off method of Practice E 29E29. the nearest 0.001 g.
5.2 Spectrophotometer—Any spectrophotometer that can
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the measure 0 to 2 absorbance units at 472 nm with a wavelength
repeatability of 5 nm.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 5.3 Spectrophotometer Cells, 2 cm.
5.4 Separatory Funnel,2L.
bility of regulatory limitations prior to use. For specific hazard
statements, see Section 7. 5.5 Volumetric Flask, 100 mL.
5.6 Pipettes,1,2,3,and5mL.
2. Referenced Documents
5.7 Filter Paper.
2.1 ASTM Standards:
2 6. Reagents
D 1193 Specification for Reagent Water
D 3437 Practice for Sampling and Handling of Liquid 6.1 Purity of Reagents—Reagent grade chemicals shall be
Cyclic Products used.
6.2 PurityofWater—Unless otherwise indicated, references
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications to water shall be understood to mean reagent water as defined
by Type I or II of Specification D 1193D 1193.
2.2 Other Document:
OSHA Regulations,29 CFR, Paragraphs 1910.000 and 6.3 Cumene or AMS—Wash 1 L of cumene or AMS with
5 % aqueous sodium hydroxide in a separatory funnel. Discard
1910, 1200.
theaqueoussodiumhydroxidephaseandfilterthehydrocarbon
3. Summary of Test Method 6
through dry filter paper. Store the hydrocarbon under a
3.1 The phenol content of cumene orAMS is determined by nitrogenblanket.Thepreviousstepsaretakentoensurethatthe
the color development of phenol with 4-aminoantipyrine. The hydrocarbon will not contain phenol or peroxides.
sample absorbance is compared to phenol standards at 472 nm 6.4 Solution of 4-Amino-Antipyrine— Dissolve 3.00 g of
on a spectrophotometer. amino-antipyrine in distilled water and dilute to volume in a
dark amber 100-mLvolumetric flask. This should be stable for
two weeks.
This test method is under the jurisdiction of ASTM Committee D-16 on
6.5 Ammonium Persulfate Solution—Dissolve 2.00 g of
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
ammonium persulfate in distilled water and dilute to volume in
Subcommittee D16.0H on Styrene, Ethylbenzene, and C and C Aromatic
9 10
Hydrocarbons.
a 100-mLvolumetric flask.Afresh solution should be made up
Current edition approved Jan. 10, and March 10, 1996. Published May 1996.
weekly.
Originally published as D 3160 – 91. Last previous edition D 3160 – 96.
2 6.6 Ammonium Hydroxide, 0.880 specific gravity.
Annual Book of ASTM Standards, Vol 11.01.
Annual Book of ASTM Standards, Vol 06.04.
Annual Book of ASTM Standards, Vol 14.02.
5 6
AvailablefromSuperintendentofDocumentsU.S.GovernmentPrintingOffice, Filter paper, IPS available from Whatman Inc., 9 Bridewell Place, Clifton, NJ
Washington, DC 20402. 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.
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.
D 3160 – 96a
6.7 Isopropyl Alcohol, reagent grade. 10. Procedure
6.8 Sodium Hydroxide, 5 % weight in distilled water.
10.1 Use the procedure described in 9.3.1-9.3.4 using
3.00-g sample instead of a standard solution.
7. Hazards
10.2 Obtain the milligram per kilogram phenol in the
sample from the curve prepared in 9.3.5.
7.1 Some materials used in this test method are toxic or
flammable, or both. NOTE 1—This curve assumes a sample size of 3 g.
7.2 If cumene has been exposed to air, cumene hydroper-
11. Calculation
oxide may be in the sample. Exercise suitable precautions for
11.1 Calculate the phenol concentration
...

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