ASTM D1363-94(2001)
(Test Method)Standard Test Method for Permanganate Time of Acetone and Methanol
Standard Test Method for Permanganate Time of Acetone and Methanol
SCOPE
1.1 This test method covers the detection in acetone and methanol of the presence of impurities that reduce potassium permanganate.
1.2 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.
1.3 For specific hazard information and guidance, consult the supplier's Material Safety Data Sheet.
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Designation:D1363–94 (Reapproved2001)
Standard Test Method for
Permanganate Time of Acetone and Methanol
This standard is issued under the fixed designation D 1363; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope manufacture or contamination during distribution and to assess
compliance with a specification.
1.1 This test method covers the detection in acetone and
4.2 Many chemical processes that use acetone or methanol,
methanol of the presence of impurities that reduce potassium
or both, involve catalyst, metals, or ligand complexes that are
permanganate.
sensitive to oxidation. Since oxidizable contaminants may
1.2 This standard does not purport to address all of the
affect the efficiency of these processes, this test method
safety concerns, if any, associated with its use. It is the
provides a comparative test for manufacturing control and
responsibility of the user of this standard to establish appro-
assessing compliance with a specification.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Apparatus
1.3 For specific hazard information and guidance, consult
5.1 Color Comparison Tubes—Matched 50-mL, tall form
the supplier’s Material Safety Data Sheet.
Nessler tubes, provided with ground on, optically clear, glass
2. Referenced Documents caps.
5.2 Constant-Temperature Bath, capable of maintaining a
2.1 ASTM Standards:
temperatureof15.0 60.5°Corof25.0 60.5°C.Itisimportant
D 329 Specification for Acetone
that the constant-temperature bath be protected from direct
D 1152 Specification for Methanol (Methyl Alcohol)
light. If a glass constant-temperature bath is employed, it
D 1193 Specification for Reagent Water
should be wrapped or coated with an opaque material.
D 1209 Test Method for Color of Clear Liquids (Platinum-
5.3 Pipet, capable of delivering 2.0 mL of solution.
Cobalt Scale)
5.4 Interval Timer and Clock, capable of measuring a time
E 180 Practice for Determining the Precision of ASTM
interval of 120 min or more. An alarm arrangement may be
Methods for Analysis and Testing of Industrial and Speci-
desirable.
ality Chemicals
E 346 Test Methods for Analysis of Methanol
6. Reagents
3. Summary of Test Method 6.1 Reagent-grade chemicals shall be used in all tests.
Unless otherwise indicated, it is intended that all reagents shall
3.1 Substances reacting with potassium permanganate in
conform to the specifications of the Committee on Analytical
neutral solutions reduce it to manganese dioxide which colors
Reagents of the American Chemical Society, where such
the solution yellow. In the permanganate test the time required
specifications are available. Other grades may be used, pro-
for the color of the test solution to change to that of a standard
vided it is first ascertained that the reagent is of sufficiently
solution is measured. The color of the test solution changes
high purity to permit its use without lessening the accuracy of
from pink-orange to yellow-orange.
the determination.
4. Significance and Use 6.2 Unless otherwise indicated, references to water shall be
understood to mean reagent water conforming to Type IV of
4.1 The permanganate time can be used to judge the
Specification D 1193.
presence of oxidizable materials that may be associated with
6.3 Potassium Permanganate Solution (0.200 g/L)—
Dissolve 0.200 g of potassium permanganate (KMnO ) and
This test method is under the jurisdiction of ASTM Committee D01 on Paint
and Related Coatings, Materials, andApplications and is the direct responsibility of
Subcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates. Reagent Chemicals, American Chemical Society Specifications, American
Current edition approved April 15, 1994. Published June 1994. Originally Chemical Society, Washington, DC. For suggestions on the testing of reagents not
e1
published as D 1363 – 55 T. Last previous edition D 1363 – 88 (1992) . listed by the American Chemical Society, see Analar Standards for Laboratory
Annual Book of ASTM Standards, Vol 06.04. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Annual Book of ASTM Standards, Vol 11.01. and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
Annual Book of ASTM Standards, Vol 15.05. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D1363
dilute to 1 L with freshly boiled water. Clean glassware is 8. Report
essential to the stability of this solution.The solution should be
8.1 Report the following information:
stored in brown bottles and be prepared every week needed.
8.1.1
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