ASTM D1614-95(1999)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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Designation: D 1614 – 95 (Reapproved 1999)
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
Alkalinity in Acetone
This standard is issued under the fixed designation D 1614; 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 all reagents shall conform to the specifications of the Commit-
tee on Analytical Reagents of the American Chem-ical Society,
1.1 This test method covers the determination in acetone of
where such specifications are available. Other grades may be
alkalinity calculated as ammonia (NH ).
used, provided it is first ascertained that the reagent is of
1.2 This standard does not purport to address the safety
sufficiently high purity to permit its use without lessening the
concerns, if any, associated with its use. It is the responsibility
accuracy of the determination.
of whoever uses this standard to consult and establish appro-
6.2 Purity of Water—Unless otherwise indicated, references
priate safety and health practices and determine the applica-
to water shall be understood to mean reagent water conforming
bility of regulatory limitations prior to use. Specific hazard
to Type IV of Specification D 1193.
statements are given in Section 7.
6.3 Methyl Red Indicator Solution (1 g/L)—Dissolve 0.2 g
1.3 For specific hazard information and guidance, consult
of methyl red in 100 mL of methanol, ethanol, or isopropanol.
the supplier’s Material Safety Data Sheet.
Prepare a fresh solution at least once a month as needed.
2. Referenced Documents
6.4 Sodium Hydroxide, Standard Solution (0.05 N)—
Prepare and standardize a 0.05 N sodium hydroxide (NaOH)
2.1 ASTM Standards:
solution (Note) in accordance with Sections 12 to 17 of
D 1193 Specification for Reagent Water
Practice E 200.
E 200 Practice for Preparation, Standardization, and Stor-
age of Standard and Reagent Solutions for Chemical
NOTE 1—Alternatively, potassium hydroxide (KOH) solution may be
Analysis
used.
6.5 Sulfuric Acid, Standard Solution (0.05 N)—Prepare and
3. Summary of Test Method
standardize a 0.05 N sulfuric acid (H SO ) solution.
2 4
3.1 The specimen is added to water previously neutralized
to the methyl red end point. If alkalinity is detected, it is titrated
7. Hazards
with 0.05 N H SO and reported as weight percent of NH .
2 4 3
7.1 Acetone is a highly flammable liquid.
7.2 The reagents sulfuric acid and sodium hydroxide are
4. Significance and Use
hazardous as they can cause severe burns of the skin or eyes.
4.1 This test method provides a measurement of alkalinity
in acetone. The results of this measurement can be used for
8. Procedure
specification acceptance.
8.1 To a 250-mL Erlenmeyer flask, add 50 mL of water and
3 drops of methyl red indicator solution. If the water is basic,
5. Apparatus
neutralize to the first faint pink coloration with 0.05 N H SO .
2 4
5.1 Buret, 10-mL, graduated in 0.05-mL subdivisions.
If acidic, neutralize to the first yellow coloration with 0.05 N
5.2 Erlenmeyer Flask, 250-mL capacity.
NaOH solution and then to the first faint pink coloration with
0.05 N H SO solution. Now add 50 mL of sample to the
6. Reagents and Materials 2 4
neutralized water. If there is no change in the color of the
6.1 Purity of Reagents—Reagent grade chemicals shall be
solution, the sample may be considered free of alkalinity. If,
used in all tests. Unless otherwise indicated, it is intended that
however, the solution turns yellow, titrate it wi
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