ASTM D1722-98(2004)
(Test Method)Standard Test Method for Water Miscibility of Water-Soluble Solvents
Standard Test Method for Water Miscibility of Water-Soluble Solvents
SIGNIFICANCE AND USE
Water-insoluble materials present in a solvent expected to be completely water miscible may interfere with many uses of the solvent. This test method provides a measure of the miscibility of water-soluble solvents with a polar medium-water. It also provides a qualitative indication of the presence or absence of water-immiscible contaminants.
The results of this test method may be used in assessing compliance with a specification. Prior to agreeing to this test method as the basis of a specification requirement, it may be desirable that the interpretation of what constitutes cloudiness or turbidity be agreed upon between the supplier and the purchaser.
SCOPE
1.1 This test method covers the determination of the miscibility of water-soluble solvents with water. While written specifically for testing acetone, isopropyl alcohol (isopropanol), and methyl alcohol (methanol), the method is suitable for testing most water-soluble solvents.
1.2 This test method serves to detect water-immiscible contaminants qualitatively; the level of detection of these impurities varies widely with both the type of solvent and the type of impurity.
1.3 The level of detection of water-insoluble materials depends upon the solvent tested and the type of impurity or impurities present, that is paraffin, olefin, aromatic, high molecular weight alcohol, or ketone, etc. There is, therefore, no specific level of impurity detected by this procedure.
Note 1—This test method is normally performed at ambient, but other temperatures may be used as specified by the consumer and supplier.
1.4 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.
1.5 For specific hazard information and guidance, consult the supplier's Material Safety Data Sheet for materials listed in this test method.
General Information
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D1722–98(Reapproved2004)
Standard Test Method for
Water Miscibility of Water-Soluble Solvents
This standard is issued under the fixed designation D 1722; 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 3. Summary of Method
1.1 This test method covers the determination of the misci- 3.1 The specimen is diluted to 10 volumes with water and
bility of water-soluble solvents with water. While written the resulting mixture examined for cloudiness or turbidity.
specifically for testing acetone, isopropyl alcohol (isopro-
4. Significance and Use
panol), and methyl alcohol (methanol), the method is suitable
for testing most water-soluble solvents. 4.1 Water-insoluble materials present in a solvent expected
to be completely water miscible may interfere with many uses
1.2 This test method serves to detect water-immiscible
contaminants qualitatively; the level of detection of these of the solvent. This test method provides a measure of the
miscibility of water-soluble solvents with a polar medium-
impurities varies widely with both the type of solvent and the
type of impurity. water. It also provides a qualitative indication of the presence
or absence of water-immiscible contaminants.
1.3 The level of detection of water-insoluble materials
depends upon the solvent tested and the type of impurity or 4.2 The results of this test method may be used in assessing
compliance with a specification. Prior to agreeing to this test
impurities present, that is paraffin, olefin, aromatic, high
molecularweightalcohol,orketone,etc.Thereis,therefore,no method as the basis of a specification requirement, it may be
desirable that the interpretation of what constitutes cloudiness
specific level of impurity detected by this procedure.
or turbidity be agreed upon between the supplier and the
NOTE 1—This test method is normally performed at ambient, but other
purchaser.
temperatures may be used as specified by the consumer and supplier.
1.4 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 Cylinder, graduated, glass-stoppered, 250-mL.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 6. Reagent
bility of regulatory limitations prior to use.
6.1 Water—References to water shall be understood to
1.5 For specific hazard information and guidance, consult
mean reagent water conforming to Type IV of Specification
the supplier’s Material Safety Data Sheet for materials listed in
D 1193.
this test method.
7. Procedure
2. Referenced Documents
7.1 Transfer 25 mL of the sample to one of two clean
2.1 AST
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