ASTM D1439-15

Standard Test Methods for Sodium Carboxymethylcellulose

SIGNIFICANCE AND USE
5.1 Moisture analysis (along with purity) is used to calculate the amount of active polymer in the material and must be considered when determining the amount of sodium carboxymethylcellulose to use in various formulations.
SCOPE
1.1 These test methods cover the testing of sodium carboxymethylcellulose.  
1.2 The test procedures appear in the following order:    
Sections  
Moisture  
4 – 9  
Degree of Etherification:  
Test Method A—Acid Wash  
10 – 17  
Test Method B—Nonaqueous Titration  
10, 12, 18 – 23  
Viscosity  
24 – 29  
Purity  
30 – 37  
Sodium Glycolate  
38 – 46  
Sodium Chloride  
47 – 54  
Density  
55 – 61  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
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. For specific hazard statements, see 15.1 and 20.

General Information

• Status: Historical
• Publication Date: 30-Nov-2015
• ICS: 85.040 - Pulps
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.36 - Cellulose and Cellulose Derivatives

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: D1439 − 15
Standard Test Methods for
1
Sodium Carboxymethylcellulose
This standard is issued under the fixed designation D1439; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
4
1. Scope* Reagents of the American Chemical Society, where such
specifications are available. Other grades may be used, pro-
1.1 These test methods cover the testing of sodium car-
vided it is first ascertained that the reagent is of sufficiently
boxymethylcellulose.
high purity to permit its use without lessening the accuracy of
1.2 The test procedures appear in the following order:
the determination.
Sections
3.2 Unless otherwise indicated, references to water shall be
Moisture 4–9
Degree of Etherification: understood to mean distilled water.
Test Method A—Acid Wash 10–17
Test Method B—Nonaqueous Titration 10, 12, 18–23
MOISTURE
Viscosity 24–29
Purity 30–37
4. Scope
Sodium Glycolate 38–46
Sodium Chloride 47–54
4.1 Thistestmethodcoversthedeterminationofthevolatile
Density 55–61
content of sodium carboxymethylcellulose.
1.3 The values stated in SI units are to be regarded as the
4.2 The results of this test are used for calculating the total
standard. The values given in parentheses are for information
solids in the sample; and, by common usage, all materials
only.
volatile at this test temperature are designated as moisture.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Significance and Use
responsibility of the user of this standard to establish appro-
5.1 Moistureanalysis(alongwithpurity)isusedtocalculate
priate safety and health practices and determine the applica-
the amount of active polymer in the material and must be
bility of regulatory limitations prior to use. For specific hazard
consideredwhendeterminingtheamountofsodiumcarboxym-
statements, see 15.1 and 20.
ethylcellulose to use in various formulations.
2. Referenced Documents
6. Apparatus
2
2.1 ASTM Standards:
6.1 Oven—Gravityconvectionoven,capableofmaintaining
D1347 Test Methods for Methylcellulose (Withdrawn
a temperature of 105 6 3°C.
3
2003)
6.2 Weighing Bottles, low-form, 50-mm inside diameter by
E1Specification for ASTM Liquid-in-Glass Thermometers
30-mm height, or equivalent.
3. Purity of Reagents
6.3 Analytical Balance.
3.1 Reagent grade chemicals shall be used in all tests.
Unlessotherwiseindicated,itisintendedthatallreagentsshall 7. Procedure
conform to the specifications of the Committee on Analytical
7.1 Weigh3to5gofthe sample to the nearest 0.001 g in a
tared and covered weighing bottle.
1
These test methods are under the jurisdiction of ASTM Committee D01 on
7.2 Place the bottle in an oven at 105°C for 2 h with the
Paint and Related Coatings, Materials, and Applications and are the direct
cover removed. Cool the bottle in a desiccator, replace the
responsibility of Subcommittee D01.36 on Cellulose and Cellulose Derivatives.
cover, and weigh.
Current edition approved Dec. 1, 2015. Published January 2016. Originally
ɛ1
approved in 1956. Last previous edition approved in 2008 as D1439–03 (2008) .
DOI: 10.1520/D1439-15.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Reagent Chemicals, American Chemical Society Specifications, American
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Chemical Society, Washington, DC. For suggestions on the testing of reagents not
Standards volume information, refer to the standard’s Document Summary page on listed by the American Chemical Society, see Analar Standards for Laboratory
the ASTM website. Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
3
The last approved version of this historical standard is referenced on and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
www.astm.org. MD.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1439 − 15
7.3 Replace the sample in the oven for 30 min, cool, and 13.3 Drying Oven, maintained at 105°C.
reweigh.
14. Reagents
7.4 Continue this procedure to a mass loss of not more than
14.1 Diphenylamine Reagent—Dissolve 0.5 g of diphe-
5 mg for 30 min drying time.
nylamine in 120 mL of sulfuric acid (H SO , 9+2). The
2 4
reagent should be essentially water-white. It will give a deep
8. Calculation
blue coloration with traces of nitrate or other oxidizing agents.
8.1 Calculate the percent moisture, M, as follo
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D1439 − 03 (Reapproved 2008) D1439 − 15
Standard Test Methods for
1
Sodium Carboxymethylcellulose
This standard is issued under the fixed designation D1439; 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
ε NOTE—Editorial changes were made in Sections 11, 12, 15.5, and 31.1 in June 2008.
1. Scope Scope*
1.1 These test methods cover the testing of sodium carboxymethylcellulose.
1.2 The test procedures appear in the following order:
Sections
Moisture 4 – 9
Moisture 4 – 9
Degree of Etherification:
Degree of Etherification:
Test Method A—Acid Wash 10 – 17
Test Method A—Acid Wash 10 – 17
Test Method B—Nonaqueous Titration 10, 12, 18 – 23
Test Method B—Nonaqueous Titration 10, 12, 18 – 23
Viscosity 24 – 30
Viscosity 24 – 29
Purity 31 – 38
Purity 30 – 37
Sodium Glycolate 39 – 47
Sodium Glycolate 38 – 46
Sodium Chloride 48 – 55
Sodium Chloride 47 – 54
Density 56 – 62
Density 55 – 61
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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. For specific hazard statements, see 15.1 and 20.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D1347 Test Methods for Methylcellulose (Withdrawn 2003)
E1 Specification for ASTM Liquid-in-Glass Thermometers
3. Purity of Reagents
3.1 Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all reagents shall conform
4
to the specifications of the Committee on Analytical Reagents of the American Chemical Society, , where such specifications are
available. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high purity to permit its use
without lessening the accuracy of the determination.
1
These test methods are under the jurisdiction of ASTM Committee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility of
Subcommittee D01.36 on Cellulose and Cellulose Derivatives.
Current edition approved June 1, 2008Dec. 1, 2015. Published June 2008January 2016. Originally approved in 1956. Last previous edition approved in 20032008 as
ɛ1
D1439 – 03.D1439 – 03 (2008) . DOI: 10.1520/D1439-03R08E01.10.1520/D1439-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Reagent Chemicals, American Chemical Society Specifications, American Chemical Society, Washington, DC. For suggestions on the testing of reagents not listed by
the American Chemical Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia and National
Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville, MD.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D1439 − 15
3.2 Unless otherwise indicated, references to water shall be understood to mean distilled water.
MOISTURE
4. Scope
4.1 This test method covers the determination of the volatile content of sodium carboxymethylcellulose.
4.2 The results of this test are used for calculating the total solids in the sample; and, by common usage, all materials volatile
at this test temperature are designated as moisture.
5. Significance and Use
5.1 Moisture analysis (along with purity) is used to calculate the amount of active polymer in the material and must be
considered when determining the amount of sodium carboxymethylcellulose to use in various formulations.
6. Apparatus
6.1 Oven—Gravity convection oven, capable of maintaining a temperature of 105 6 3°C.
6.2 Weighing Bottles, low-form, 50-mm inside diameter by 30-mm height, or equivalent.
6.3 Analytical Balance.
7. Procedure
...