ASTM D2192-06

Standard Test Method for Purity of Aldehydes and Ketones

SIGNIFICANCE AND USE
This test method provides a measurement of purity (assay) of aldehydes and ketones. The results of these measurements can be used for specification acceptance.
The precision of this test method is applicable only to material having a purity of 98 to 100 %.
SCOPE
1.1 This test method covers the determination of the purity of certain commercially available aldehydes and ketones.
1.2 In addition to all aldehydes and ketones, all compounds such as vinyl alkyl ethers, acetals, and ketals, that hydrolyze under the conditions of the reaction to form free carbonyl groups, react with the reagent and consequently interfere. Water, alcohols, saturated esters, and hydrocarbons do not react with the reagent, but large amounts of inert organic solvents are undesirable because of the effect on the indicator.
1.3 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) 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 E 29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
1.6 For hazard information and guidance, see the supplier's Material Safety Data Sheet.

General Information

• Status: Historical
• Publication Date: 31-May-2006
• ICS: 71.080.80 - Aldehydes and ketones
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.35 - Solvents, Plasticizers, and Chemical Intermediates

Relations

• Replaces: ASTM D2192-96(2000) - Standard Test Method for Purity of Aldehydes and Ketones
• Effective Date: 01-Jun-2006
• Referred By: ASTM D268-22 - Standard Guide for Sampling and Testing Volatile Solvents and Chemical Intermediates for Use in Paint and Related Coatings and Material
• Effective Date: 01-Jun-2006
• Referred By: ASTM D2916-09(2023) - Standard Specification for Isophorone
• Effective Date: 01-Jun-2006

Standards Content (Sample)

Designation: D2192 − 06
Standard Test Method for
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Purity of Aldehydes and Ketones
This standard is issued under the fixed designation D2192; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* D1193 Specification for Reagent Water
E29 Practice for Using Significant Digits in Test Data to
1.1 This test method covers the determination of the purity
Determine Conformance with Specifications
of certain commercially available aldehydes and ketones.
E200 Practice for Preparation, Standardization, and Storage
1.2 In addition to all aldehydes and ketones, all compounds
of Standard and Reagent Solutions for ChemicalAnalysis
such as vinyl alkyl ethers, acetals, and ketals, that hydrolyze
E222 Test Methods for Hydroxyl Groups Using Acetic
under the conditions of the reaction to form free carbonyl
Anhydride Acetylation
groups, react with the reagent and consequently interfere.
Water,alcohols,saturatedesters,andhydrocarbonsdonotreact
3. Summary of Test Method
withthereagent,butlargeamountsofinertorganicsolventsare
3.1 Hydroxylamine hydrochloride is converted in part to
undesirable because of the effect on the indicator.
free hydroxylamine by reaction with a known amount of
1.3 For purposes of determining conformance of an ob-
aqueous triethanolamine.
served or a calculated value using this test method to relevant
NH OH·HCl1 HOCH CH N→ (1)
~ !
2 2 2
3
specifications, test result(s) shall be rounded off “to the nearest
unit” in the last right-hand digit used in expressing the
NH OH1 HOCH CH N·HCl
~ !
2 2 2
3
specification limit, in accordance with the rounding-off method
of Practice E29. The free hydroxylamine reacts with the aldehyde or ketone
to form the corresponding oxime.
1.4 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this RR C 5 01NH OH→RR C 5 H 5 NOH1H O, (2)
1 2 1 2
standard.
where:
1.5 This standard does not purport to address all of the
R = alkyl group and
safety concerns, if any, associated with its use. It is the
R = alkyl group or hydrogen.
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responsibility of the user of this standard to establish appro-
The amount of hydroxylamine consumed, which is deter-
priate safety and health practices and determine the applica-
mined by titration of the excess base with standard sulfuric
bility of regulatory limitations prior to use. For specific hazard
acid, is a measure of the aldehyde or ketone originally present.
statements, see Section 7.
1.6 For hazard information and guidance, see the supplier’s
3.2 Since the determination is based on an acidimetric
Material Safety Data Sheet.
titration, a suitable correction must be applied if the sample is
not neutral to bromophenol blue indicator.
2. Referenced Documents
2
2.1 ASTM Standards: 4. Significance and Use
D268 Guide for Sampling and Testing Volatile Solvents and
4.1 This test method provides a measurement of purity
Chemical Intermediates for Use in Paint and Related
(assay) of aldehydes and ketones. The results of these mea-
Coatings and Material
surements can be used for specification acceptance.
4.2 The precision of this test method is applicable only to
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This test method is under the jurisdiction of ASTM Committee D01 on Paint
material having a purity of 98 to 100 %.
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.
Current edition approved June 1, 2006. Published June 2006. Originally 5. Apparatus
approved in 1963. Last previous edition approved in 2000 as D2192 – 96 (2000).
5.1 Pressure Bottle, 200 to 350-mLcapacity, with lever type
DOI: 10.1520/D2192-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or closure and made of heat-resistant glass.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.2 Container for Pressure Bottle—Asuitable safety device
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. to contain the pressure bottle.Ametal container with a hinged
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D2192 − 06
top and perforated bottom, a strong synthetic fabric or canvas 7.2 Add 15 mLof a 0.04 % alcoholic solution of bromophe-
bag, or a safety shield may be used. nol blue indicator to 500 mL of the hydroxylamine hydrochlo-
ride solution. From a buret add 0.5 N triethanolamine until the
5.3 Ampoule, 1 or 2-mL capacity.
solutionappearsgreenish-bluebytransmittedlight.Preparethe
5.4 Weighing Pipet, Lunge or similar type.
solution fresh before each
...