ASTM D5349-95

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Designation: D 5349 – 95
Standard Test Method for
Determination of the Moisture and Volatile Content of
Sulfonated and Sulfated Oils by Hot-Plate Method
This standard is issued under the fixed designation D 5349; 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.
1. Scope 4.1.2 Beaker, Griffin low-form glass beaker with an ap-
proximate capacity of 150 mL and a diameter of about 5 cm.
1.1 This test method covers the determination of the per-
4.1.3 Heat Source—The source of heat may be either an
centage of water and other compounds volatile at about 100°C
electric hot plate with or without asbestos paper or board cover,
existing in a sample of sulfonated or sulfated oil, or both, by
or an open flame under a suitable asbestos board and a wire
rapid evaporation. This test method is applicable only to
gauze (to spread the heat).
sulfonated and sulfated oils that do not contain the following:
4.1.4 Thermometer, graduated from 90 to 150°C, about 3 in.
mineral acids, free sulfonic acids or free sulfuric acid esters,
in length, and substantially constructed.
ammonia, acetic acid or similar volatile acids, alkali hydrox-
ides, carbonates, acetates or similar salts that may react with
5. Reagents
oleic acid at elevated temperatures liberating volatile acids, or
5.1 Desiccating Agent—Any suitable desiccating agent may
glycerin, diethylene glycol, xylene, or other compounds of
be used.
similar volatility. This test method was derived from Test
Methods D 500, Sections 10 through 14.
NOTE 1—Recent investigations seem to indicate that calcium chloride
1.2 The values stated in SI units are to be regarded as the is unreliable as a laboratory desiccating agent.
standard.
5.2 Oleic Acid.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 6. Procedure
responsibility of the user of this standard to establish appro-
6.1 Weigh approximately5gof oleic acid into the beaker
priate safety and health practices and determine the applica-
and insert the thermometer. Heat the oleic acid gradually, while
bility of regulatory limitations prior to use.
stirring with the thermometer, until the temperature reaches
130°C. Place the beaker in an oven at 105 to 100°C for 15 min,
2. Referenced Documents
cool in a desiccator, and weigh. Repeat the heating over the hot
2.1 ASTM Standards:
plate and in the oven until two successive weighings differ by
D 500 Test Methods of Chemical Analysis of Sulfonated
less than 1.5 mg.
and Sulfated Oils
6.2 Place about6gofthe sample in the weighing flask and
determine the weight accurately. Transfer the sample to the
3. Significance
...