ASTM E1584-11
(Test Method)Standard Test Method for Assay of Nitric Acid
Standard Test Method for Assay of Nitric Acid
SIGNIFICANCE AND USE
This test method provides a means for assaying nitric acid, based on total acidity. The concentration of nitric acid is important in many of the uses of nitric acid, including specification compliance and manufacturing control.
SCOPE
1.1 This test method covers determination of the assay of nitric acid by total acidity. This test method is suitable for concentrations between approximately 50 and 70 %, calculated as nitric acid.
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 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures, and safety precautions.
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. Specific precautionary statements are given in Section 8.
General Information
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1584 − 11
Standard Test Method for
1
Assay of Nitric Acid
This standard is issued under the fixed designation E1584; 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. Significance and Use
1.1 This test method covers determination of the assay of
4.1 This test method provides a means for assaying nitric
nitric acid by total acidity. This test method is suitable for
acid, based on total acidity. The concentration of nitric acid is
concentrationsbetween approximately 50 and 70 %, calculated
important in many of the uses of nitric acid, including
as nitric acid.
specification compliance and manufacturing control.
1.2 The values stated in SI units are to be regarded as
5. Interferences
standard. No other units of measurement are included in this
standard.
5.1 Acids other than nitric, and compounds that consume
1.3 ReviewthecurrentMaterialSafetyDataSheets(MSDS)
sodium hydroxide, will yield erroneously high results.
for detailed information concerning toxicity, first aid
procedures, and safety precautions.
6. Apparatus
1.4 This standard does not purport to address all of the
6.1 Erlenmeyer Flask, 250 mL, glass stoppered.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
6.2 Buret, 50 mL, Class A.
priate safety and health practices and determine the applica-
NOTE 1—A digital buret capable of measuring volumes to the nearest
bility of regulatory limitations prior to use. Specific precau-
0.01 mL may be used in place of a conventional buret.
tionary statements are given in Section 8.
7. Reagents
2. Referenced Documents
2
2.1 ASTM Standards:
7.1 Purity of Reagents—Reagent grade chemicals shall be
D1193 Specification for Reagent Water
used in all tests. Unless otherwise indicated, it is intended that
E180 Practice for Determining the Precision of ASTM
all reagents conform to the specifications of the Committee on
Methods for Analysis and Testing of Industrial and Spe-
Analytical Reagents of the American Chemical Society where
3
4
cialty Chemicals (Withdrawn 2009)
such specifications are available. Other grades may be used,
E200 Practice for Preparation, Standardization, and Storage
provided it is first ascertained that the reagent is of sufficiently
of Standard and Reagent Solutions for ChemicalAnalysis
high purity to permit its use without lessening the accuracy of
E300 Practice for Sampling Industrial Chemicals
the determination.
3. Summary of Test Method
7.2 Purity of Water—Unless otherwise indicated, references
to water shall be understood to mean reagent water as defined
3.1 Aweighed sample of acid is diluted in water and titrated
with 1.0 N sodium hydroxide solution, using phenolphthalein by Type II or Type III of Specification D1193.
as the end-point indicator.
7.3 Phenolphthalein Indicator Solution (10 g/L)—Dissolve
1 g of phenolphthalein in 100 mLof ethanol (95 %), methanol,
1
This test method is under the jurisdiction of ASTM Committee D16 on
5
or isopropanol.
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
Subcommittee D16.16 on Industrial and Specialty Product Standards.
Current edition approved Aug. 1, 2011. Published September 2011. Originally
ε1
approved in 1993. Last previous edition approved in 2005 as E1584 – 00 (2005) .
4
DOI: 10.1520/E1584-11. Reagent Chemicals, American Chemical Society Specifications, American
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Chemical Society, Washington, DC. For suggestions on the testing of reagents not
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM listed by the American Chemical Society, see Analar Standards for Laboratory
Standards volume information, refer to the standard’s Document Summary page on Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
the ASTM website. and National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,
3
The last approved version of this historical standard is referenced on MD.
5
www.astm.org. This reagent is also described in Practice E200.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E1584 − 11
7.4 Sodium Hydroxide, Standard Solution (1.0 N)—Prepare 11.2 Correct the normality of the sodium hydroxide stan-
and standardize in accordance with Practice E200, remember- dardsolutionforanydifferenceintemperaturebetweentimeof
ing to record the temperature of the NaOH solution during the stand
...
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.
´1
Designation:E1584–00 (Reapproved 2005) Designation:E1584–11
Standard Test Method for
1
Assay of Nitric Acid
This standard is issued under the fixed designation E1584; 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
´ NOTE—The multiplier in the numerator of Eq 2 was changed from 6301 to 6.301 editorially in April 2007.
1. Scope
1.1 This test method covers determination of the assay of nitric acid by total acidity. This test method is suitable for
concentrations between approximately 50 and 70 %, calculated as nitric acid.
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 Review the current Material Safety Data Sheets (MSDS) for detailed information concerning toxicity, first aid procedures,
and safety precautions.
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. Specific precautionary statements are given in Section 8.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
E180 Practice for Determining the Precision ofASTM Methods forAnalysis and Testing of Industrial and Specialty Chemicals
E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
E300 Practice for Sampling Industrial Chemicals
3. Summary of Test Method
3.1 A weighed sample of acid is diluted in water and titrated with 1.0 N sodium hydroxide solution, using phenolphthalein as
the end-point indicator.
4. Significance and Use
4.1 This test method provides a means for assaying nitric acid, based on total acidity. The concentration of nitric acid is
important in many of the uses of nitric acid, including specification compliance and manufacturing control.
5. Interferences
5.1 Acids other than nitric, and compounds that consume sodium hydroxide, will yield erroneously high results.
6. Apparatus
6.1 Erlenmeyer Flask, 250 mL, glass stoppered.
6.2 Buret, 50 mL, Class A.
NOTE 1—A digital buret capable of measuring volumes to the nearest 0.01 mL may be used in place of a conventional buret.
7. Reagents
7.1 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
This test method is under the jurisdiction of ASTM Committee E15 on Industrial and Specialty Chemicals and is the direct responsibility of Subcommittee E15.02 on
Product Standards.
Current edition approved Oct. 1, 2005. Published November 2005. Originally approved in 1993. Last previous edition approved in 2000 as E1584–00. DOI:
10.1520/E1584-00R05E01.
´1
Current edition approved Aug. 1, 2011. Published September 2011. Originally approved in 1993. Last previous edition approved in 2005 as E1584 – 00 (2005) . DOI:
10.1520/E1584-11.
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
---------------------- Page: 1 ----------------------
E1584–11
3
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.
7.2 Purity of Water—Unless otherwise indicated, references to water shall be understood to mean reagent water as defined by
Type II or Type III of Specification D1193.
7.3 Phenolphthalein Indicator Solution (10 g/L)—Dissolve1gof phenolphthalein in 100 mL of ethanol (95 %), methanol, or
4
isopropanol.
3
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 Unit
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