ASTM E465-11
(Test Method)Standard Test Methods for Determination of Manganese (IV) in Manganese Ores by Redox Titrimetry
Standard Test Methods for Determination of Manganese (IV) in Manganese Ores by Redox Titrimetry
SIGNIFICANCE AND USE
This test method is intended to be used for compliance with compositional specifications for manganese dioxide content in manganese ores. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices shall be followed, such as those described in Guide E882.
SCOPE
1.1 These test methods cover the determination of manganese dioxide in amounts commonly found in manganese ore. The determination measures the amount of manganese (IV) present in the sample. The result may be expressed as available oxygen or as manganese dioxide. The following test methods are included and may be used interchangeably:
Sections Test Method A (Ferrous Ammonium Sulfate) 9-13 Test Method B (Periodate (Sodium Oxalate)14-18
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.
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Designation: E465 − 11
Standard Test Methods for
Determination of Manganese (IV) in Manganese Ores by
1
Redox Titrimetry
This standard is issued under the fixed designation E465; 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 3. Terminology
3.1 Definitions—For definitions of terms used in this test
1.1 These test methods cover the determination of manga-
nese dioxide in amounts commonly found in manganese ore. method, refer to Terminology E135.
The determination measures the amount of manganese (IV)
4. Significance and Use
present in the sample.The result may be expressed as available
oxygen or as manganese dioxide. The following test methods
4.1 This test method is intended to be used for compliance
are included and may be used interchangeably:
with compositional specifications for manganese dioxide con-
Sections
tent in manganese ores. It is assumed that all who use these
procedures will be trained analysts capable of performing
Test Method A (Ferrous Ammonium Sulfate) 9-13
Test Method B (Periodate (Sodium Oxalate) 14-18 common laboratory procedures skillfully and safely. It is
expected that work will be performed in a properly equipped
1.2 The values stated in SI units are to be regarded as
laboratory and that proper waste disposal procedures will be
standard. No other units of measurement are included in this
followed. Appropriate quality control practices shall be
standard.
followed, such as those described in Guide E882.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Interferences
responsibility of the user of this standard to establish appro-
5.1 The elements ordinarily present in manganese ores do
priate safety and health practices and determine the applica-
not interfere in either test method.
bility of regulatory limitations prior to use.
6. Reagents and Materials
2. Referenced Documents
6.1 Purity of Reagents—Reagent grade chemicals shall be
2
2.1 ASTM Standards:
used in all tests. Unless otherwise indicated, it is intended that
D1193 Specification for Reagent Water
all reagents conform to the specifications of the Committee on
E50 Practices for Apparatus, Reagents, and Safety Consid-
Analytical Reagents of the American Chemical Society where
erations for Chemical Analysis of Metals, Ores, and
3
such specifications are available. Other grades may be used,
Related Materials
provided it is first ascertained that the reagent is of sufficient
E135 Terminology Relating to Analytical Chemistry for
high purity to permit its use without lessening the accuracy of
Metals, Ores, and Related Materials
the determination.
E882 Guide for Accountability and Quality Control in the
6.2 Purity of Water—Unless otherwise indicated, references
Chemical Analysis Laboratory
to water shall be understood to mean reagent water conforming
to Type I or II of Specification D1193. Type III or IV may be
used if they effect no measurable change in the blank or
1
These test methods are under the jurisdiction of ASTM Committee E01 on
sample.
Analytical Chemistry for Metals, Ores, and Related Materials and are the direct
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
lurgical Materials.
Current edition approved Sept. 1, 2011. Published September 2011. Originally
3
approved in 1972. Last previous edition approved in 2005 as E465 – 00 (2005). Reagent Chemical, American Chemical Society Specifications, American
DOI: 10.1520/E0465-11. Chemical Society, Washington, DC. For suggestions on the testing of reagents not
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or listed by the American Chemical Society, see Analar Standards for Laboratory
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Chemicals, BDH Ltd., Poole Dorset, U. K., and the United States Pharmacopeia
Standards volume information, refer to the standard’s Document Summary page on and National Formulary,U.S.PharmaceuticalConvention,Inc.,(USPC),Rockville,
the ASTM website. MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E465 − 11
7. Hazards test conditions. For this purpose, pour into a flask the same
amount of ferrous ammonium sulfate solution used to dissolve
7.1 Forprecautionstobeobservedinthesemethods,referto
the ore, and proceed as directed in 11.3.
Practice E50.
12. Calculation
8. Sampling and Sample Preparation
12.1 Calculate the manganese dioxide content as follows:
8.1 The sampl
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This document is not anASTM standard and is intended only to provide the user of anASTM 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.
Designation:E465–00(Reapproved2005) Designation:E465–11
Standard Test Methods for
Determination of Manganese (IV) in Manganese Ores by
1
Redox TitrationTitrimetry
This standard is issued under the fixed designation E465; 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
1.1 These test methods cover the determination of manganese dioxide in amounts commonly found in manganese ore. The
determination measures the amount of manganese (IV) present in the sample. The result may be expressed as available oxygen
or as manganese dioxide. The following test methods are included and may be used interchangeably:
Sections
Test Method A (Ferrous Ammonium Sulfate) 9-13
Test Method B (Periodate (Sodium Oxalate) 14-18
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
E50 PracticesforApparatus,Reagents,andSafetyConsiderationsforChemicalAnalysisofMetals,Ores,andRelatedMaterials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135.
4. Significance and Use
4.1 This test method is intended to be used for compliance with compositional specifications for manganese dioxide content in
manganese ores. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory
procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste
disposal procedures will be followed. Appropriate quality control practices shall be followed, such as those described in Guide
E882.
5. Interferences
5.1 The elements ordinarily present in manganese ores do not interfere in either test method.
6. Reagents and Materials
6.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all
reagents conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society where such
1
These test methods are under the jurisdiction ofASTM Committee E01 onAnalytical Chemistry for Metals, Ores, and Related Materials and are the direct responsibility
of Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved Oct. 1, 2005. Published October 2005. Originally approved in 1972. Last previous edition approved in 2000 as E465–00. DOI:
10.1520/E0465-00R05.
Current edition approved Sept. 1, 2011. Published September 2011. Originally approved in 1972. Last previous edition approved in 2005 as E465 – 00 (2005). DOI:
10.1520/E0465-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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E465–11
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specifications are available. Other grades may be used, provided it is first ascertained that the reagent is of sufficient high purity
to permit its use without lessening the accuracy of the determination.
6.2 Purity of Water—Unless otherwise indicated, references to water shall be understood to mean reagent water as defined by
conforming to Type I or II of Specification D1193. . Type III or IV may be used if they effect no measurable change in the blank
or sample.
7. Hazards
7.1 For precautions to be observed in these methods, refer to Practice E50.
8. Sampling and Sample Preparation
8.1 The sample shall pass a No. 100 (150-µm) sieve.
TEST METHOD A—FERROUS AMMONIUM SULFATE METHOD
9. Summary of Test Method
9.1 The test sample is dissolv
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