ASTM D1363-94(1997)

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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: D 1363 – 94 (Reapproved l997)
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
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 4.2 Many chemical processes that use acetone or methanol,
or both, involve catalyst, metals, or ligand complexes that are
1.1 This test method covers the detection in acetone and
sensitive to oxidation. Since oxidizable contaminants may
methanol of the presence of impurities that reduce potassium
affect the efficiency of these processes, this test method
permanganate.
provides a comparative test for manufacturing control and
1.2 This standard does not purport to address all of the
assessing compliance with a specification.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5. Apparatus
priate safety and health practices and determine the applica-
5.1 Color Comparison Tubes—Matched 50-mL, tall form
bility of regulatory limitations prior to use.
Nessler tubes, provided with ground on, optically clear, glass
1.3 For specific hazard information and guidance, consult
caps.
the supplier’s Material Safety Data Sheet.
5.2 Constant-Temperature Bath, capable of maintaining a
2. Referenced Documents temperature of 15.0 6 0.5°C or of 25.0 6 0.5°C. It is important
that the constant-temperature bath be protected from direct
2.1 ASTM Standards:
2 light. If a glass constant-temperature bath is employed, it
D 329 Specification for Acetone
should be wrapped or coated with an opaque material.
D 1152 Specification for Methanol (Methyl Alcohol)
3 5.3 Pipet, capable of delivering 2.0 mL of solution.
D 1193 Specification for Reagent Water
5.4 Interval Timer and Clock, capable of measuring a time
D 1209 Test Method for Color of Clear Liquids (Platinum-
2 interval of 120 min or more. An alarm arrangement may be
Cobalt Scale)
desirable.
E 180 Practice for Determining the Precision of ASTM
Methods for Analysis and Testing of Industrial Chemicals
6. Reagents
E 346 Test Method for Analysis of Methanol
6.1 Reagent-grade chemicals shall be used in all tests.
3. Summary of Test Method Unless otherwise indicated, it is intended that all reagents shall
conform to the specifications of the Committee on Analytical
3.1 Substances reacting with potassium permanganate in
Reagents of the American Chemical Society, where such
neutral solutions reduce it to manganese dioxide which colors
specifications are available. Other grades may be used, pro-
the solution yellow. In the permanganate test the time required
vided it is first ascertained that the reagent is of sufficiently
for the color of the test solution to change to that of a standard
high purity to permit its use without lessening the accuracy of
solution is measured. The color of the test solution changes
the determination.
from pink-orange to yellow-orange.
6.2 Unless otherwise indicated, references to water shall be
4. Significance and Use
understood to mean reagent water conforming to Type IV of
Specification D 1193.
4.1 The permanganate time can be used to judge the
6.3 Potassium Permanganate Solution (0.200 g/L)—
presence of oxidizable materials that may be associated with
Dissolve 0.200 g of potassium permanganate (KMnO ) and
manufacture or contamination during distribution and to assess 4
dilute to 1 L with freshly boiled water. Clean glassware is
compliance with a specification.
essential to the stability of this solution. The solution should be
stored in brown bottles and be prepared every week needed.
This test method is under the jurisdiction of ASTM Committee D-1 on Paint
and Related Coatings, Materials, and Applications 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 D1363 – 55 T. Last previous edition D1363 – 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), Roc
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