ASTM E1784-08

Standard Test Method for Total Peroxides in Acrylonitrile (Withdrawn 2016)

SIGNIFICANCE AND USE
This test method provides for the determination of total peroxide in acrylonitrile in the range of 0.1 to 0.6 ppm. Only peroxides or other oxidants that react under the conditions of this test method are measured.
SCOPE
1.1 This test method describes a procedure for determining the total peroxide content of acrylonitrile in the range of 0.1 to 0.6 mg H2O2/kg acrylonitrile (ppm). Peroxides are an undesirable impurity in acrylonitrile.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. Specific hazard statements are given in Section 7.  
1.4 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
WITHDRAWN RATIONALE
This test method describes a procedure for determining the total peroxide content of acrylonitrile in the range of 0.1 to 0.6 mg H2O2/kg acrylonitrile (ppm). Peroxides are an undesirable impurity in acrylonitrile.
Formerly under the jurisdiction of Committee D16 on Aromatic Hydrocarbons and Related Materials, this test method was withdrawn in November 2016. This standard is being withdrawn without replacement due to its limited use by industry.

General Information

• Status: Withdrawn
• Publication Date: 14-Dec-2008
• Withdrawal Date: 03-Nov-2016
• ICS: 71.080.30 - Organic nitrogen compounds
• Technical Committee: D16 - Aromatic, Industrial, Specialty and Related Chemicals

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E1784 − 08
StandardTest Method for
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Total Peroxides in Acrylonitrile
This standard is issued under the fixed designation E1784; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* proportional to the concentration of the I ion, is measured at
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365 nm. Results are expressed as total peroxides as H O .
2 2
1.1 This test method describes a procedure for determining
the total peroxide content of acrylonitrile in the range of 0.1 to
4. Significance and Use
0.6 mg H O /kg acrylonitrile (ppm). Peroxides are an undesir-
2 2
4.1 This test method provides for the determination of total
able impurity in acrylonitrile.
peroxide in acrylonitrile in the range of 0.1 to 0.6 ppm. Only
1.2 The values stated in SI units are to be regarded as
peroxides or other oxidants that react under the conditions of
standard. No other units of measurement are included in this
this test method are measured.
standard.
1.3 This standard does not purport to address all of the 5. Apparatus
safety concerns, if any, associated with its use. It is the
5.1 Spectrophotometer, capable of measuring at 365 nm,
responsibility of the user of this standard to establish appro-
5.2 Absorption Cells, 1-cm, borosilicate, matched, and
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. Specific hazard
5.3 Buret, 25-mL capacity.
statements are given in Section 7.
NOTE 1—Photometers and photometric practice described in this test
1.4 ReviewthecurrentMaterialSafetyDataSheets(MSDS)
method shall conform to Practice E60.
for detailed information concerning toxicity, first aid
procedures, and safety precautions. 6. Reagents
6.1 Purity of Reagents—Unless otherwise indicated, all
2. Referenced Documents
reagents shall conform to the specifications of the Committee
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2.1 ASTM Standards:
on Analytical Reagents of the American Chemical Society
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D1193Specification for Reagent Water
where such specifications are available. Other grades may be
E60Practice for Analysis of Metals, Ores, and Related
used, provided it is first ascertained that the reagent is of
Materials by Spectrophotometry
sufficiently high purity to permit its use without lessening the
E180Practice for Determining the Precision of ASTM
accuracy of the determination.
Methods for Analysis and Testing of Industrial and Spe-
3 6.2 Purity of Water—Unless otherwise indicated, references
cialty Chemicals (Withdrawn 2009)
to water meanType II orType III reagent water conforming to
E200Practice for Preparation, Standardization, and Storage
Specification D1193.
of Standard and Reagent Solutions for ChemicalAnalysis
6.3 Potassium Iodide.
3. Summary of Test Method
6.4 Acetic Anhydride.
3.1 Peroxides in the sample react with potassium iodide to
6.5 Hydrogen Peroxide, 30 %.
form the yellow I ion. The intensity of the color, which is
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6.6 Acrylonitrile, Peroxide Free—Prepare by passing acry-
lonitrile througha2cm×40cm glass column packed with 50
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This test method is under the jurisdiction of ASTM Committee D16 on
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mL of activated alumina or acid form ion exchange resin.
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.16 on Industrial and Specialty Product Standards.
Current edition approved Dec. 15, 2008. Published January 2009. Originally
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approved in 1996. Last previous edition approved in 2002 as E1784–97 (2002). Reagent Chemicals, American Chemical Society Specifications, American
DOI: 10.1520/E1784-08. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
the ASTM website. MD.
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The last approved version of this historical standard is referenced on Rohm and Haas Amberlyst 15 has been found to be suitable or an equivalent
www.astm.org. resin may be used.
*A Summary of Changes section appears at the end of this standard
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E1784 − 08
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