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ASTM D5353-95(2012)

(Test Method)

Standard Test Method for Determination of Total Desulfated Fatty Matter

Standard Test Method for Determination of Total Desulfated Fatty Matter

SIGNIFICANCE AND USE
This test method is intended for the determination of the total desulfated matter contained in sulfated oils following their total decomposition with dilute mineral acid.
SCOPE
1.1 This test method covers the determination of the total desulfated fatty matter in a sample of sulfated oils by decomposition with diluted mineral acids and extraction of the decomposed fat. This test method is not applicable to samples that are not completely decomposed upon boiling with mineral acids. This test method was derived from Test Methods D500, Sections 29 through 32.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.

General Information

Status
Historical
Publication Date
31-Mar-2012
ICS
71.080.99 - Other organic chemicals
Technical Committee
D31 - Leather
Drafting Committee
D31.08 - Fats and Oils
Current Stage
Ref Project

Relations

Replaces
ASTM D5353-95(2006) - Standard Test Method for Determination of Total Desulfated Fatty Matter
Effective Date
01-Apr-2012
Replaced By
ASTM D5353-95(2019) - Standard Test Method for Determination of Total Desulfated Fatty Matter
Effective Date
01-Apr-2019
Referred By
ASTM D5553-95(2019) - Standard Test Method for Determination of the Unsaponifiable Nonvolatile Matter in Sulfated Oils
Effective Date
01-Apr-2012

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ASTM D5353-95(2012) - Standard Test Method for Determination of Total Desulfated Fatty MatterASTM D5353-95(2012) - Standard Test Method for Determination of Total Desulfated Fatty Matter
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ASTM D5353-95(2012) - Standard Test Method for Determination of Total Desulfated Fatty Matter
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D5353 − 95 (Reapproved 2012)
Standard Test Method for
Determination of Total Desulfated Fatty Matter
This standard is issued under the fixed designation D5353; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Reagents
1.1 This test method covers the determination of the total
4.1 Ethyl Ether.
desulfated fatty matter in a sample of sulfated oils by decom-
4.2 Sulfuric Acid (1 + 19)—Carefully mix one volume of
position with diluted mineral acids and extraction of the
concentrated sulfuric acid (H SO , sp gr 1.84) into 19 volumes
2 4
decomposed fat. This test method is not applicable to samples
of water while stirring.
that are not completely decomposed upon boiling with mineral
acids. This test method was derived from Test Methods D500,
5. Procedure
Sections 29 through 32.
1.2 The values stated in SI units are to be regarded as 5.1 The procedure consists of decomposing the sample with
standard. No other units of measurement are included in this H SO , extracting the fatty matter with ether, evaporating the
2 4
standard.
solvent, and weighing the residue. After cooling, transfer the
titrated solution obtained after determining organically com-
1.3 This standard does not purport to address all of the
bined sulfuric anhydride in accordance with Test Method
safety concerns, if any, associated with its use. It is the
D5350 orTest Method D5351 (6.1.2) into a 250-mLseparatory
responsibility of the user of this standard to establish appro-
funnel and shake with 50 mLof ether. Draw off the water layer
priate safety and health practices and determine the applica-
into another separatory funnel and extract twice with 25-mL
bility of regulatory limitations prior to use.
portions of ether. Wash the combined ether layers with 15-mL
portions of water until the wash water is neutral to methyl
2. Referenced Documents
orange. Transfer the ether layer to a tared 150-mL beaker,
2.1 ASTM Standards:
evaporate on the water bath until practically free from solvent,
D500 Test Methods of ChemicalAnalysis of Sulfonated and
dry in a hot-air oven at 105 to 110°C for 30 min, cool in a
Sulfated Oils
desiccator, and weigh. Repeat the heating for 30-min periods
D5350 Test Method for Determination of Organically Com-
until constant weight is obtained.
bined Sulfuric Anhydride by Titration, Test Method A
D5351 Test Method for Determination of Organically Com-
NOTE 1—Reserve the extracted fatty matter for the subsequent deter-
bined Sulfuric Anhydride by Extraction Titration, Test
mination of unsaponifiable matter (Section
...

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SCOPE
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