ASTM D5194-11
(Test Method)Standard Test Method for Trace Chloride in Liquid Aromatic Hydrocarbons
Standard Test Method for Trace Chloride in Liquid Aromatic Hydrocarbons
SIGNIFICANCE AND USE
Organic and inorganic chlorine compounds can have a deleterious effect on equipment and reactions in processes involving aromatic hydrocarbons.
Maximum chloride levels are often specified for process streams and for aromatic hydrocarbon products.
SCOPE
1.1 This test method covers the determination of total chloride (organic and inorganic) in liquid aromatic hydrocarbons and cyclohexane.
1.2 The test method is applicable to samples with chloride concentrations of 1 to 25 mg/kg.
1.3 Bromides and iodides, if present, will be calculated as chlorides.
1.4 Materials, such as styrene, that are polymerized by sodium biphenyl reagent cannot be analyzed by this test method.
1.5 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 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 a specific hazard statement, see Section 7.
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Designation:D5194–11
Standard Test Method for
1
Trace Chloride in Liquid Aromatic Hydrocarbons
This standard is issued under the fixed designation D5194; 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* D4052 Test Method for Density, Relative Density, and API
Gravity of Liquids by Digital Density Meter
1.1 This test method covers the determination of total
D6809 Guide for Quality Control and Quality Assurance
chloride (organic and inorganic) in liquid aromatic hydrocar-
Procedures for Aromatic Hydrocarbons and Related Ma-
bons and cyclohexane.
terials
1.2 The test method is applicable to samples with chloride
E29 Practice for Using Significant Digits in Test Data to
concentrations of 1 to 25 mg/kg.
Determine Conformance with Specifications
1.3 Bromides and iodides, if present, will be calculated as
3
2.2 Other Documents:
chlorides.
OSHA Regulations, 29 CFR paragraphs 1910.1000 and
1.4 Materials, such as styrene, that are polymerized by
1910.1200
sodium biphenyl reagent cannot be analyzed by this test
method.
3. Summary of Test Method
1.5 In determining the conformance of the test results using
3.1 A known amount of hydrocarbon sample is transferred
this method to applicable specifications, results shall be
into a separatory funnel containing toluene. Sodium biphenyl
rounded off in accordance with the rounding-off method of
reagent is added to convert organic halogens into inorganic
Practice E29.
halides. The excess reagent is decomposed with water and the
1.6 The values stated in SI units are to be regarded as
phases are separated. The aqueous phase is acidified, washed,
standard. No other units of measurement are included in this
and concentrated. Acetone is added and the solution is titrated
standard.
with silver nitrate solution.
1.7 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
4.1 Organic and inorganic chlorine compounds can have a
priate safety and health practices and determine the applica-
deleterious effect on equipment and reactions in processes
bility of regulatory limitations prior to use. For a specific
involving aromatic hydrocarbons.
hazard statement, see Section 7.
4.2 Maximum chloride levels are often specified for process
2. Referenced Documents streams and for aromatic hydrocarbon products.
2
2.1 ASTM Standards:
5. Apparatus
D891 Test Methods for Specific Gravity, Apparent, of
5.1 Titrator, potentiometric, recording, + 2000 mV range, 1
Liquid Industrial Chemicals
mV resolution with dispenser having a volume readout of 0.00
D1193 Specification for Reagent Water
to 9.99 mL or 0.00 to 99.99 mL and 0.01 % resolution.
D3437 Practice for Sampling and Handling Liquid Cyclic
5.2 Electrode, glass, reference.
Products
5.3 Electrode, silver, billet type.
D3505 Test Method for Density or Relative Density of Pure
Liquid Chemicals
6. Reagents and Materials
6.1 Purity of Reagents—Reagent grade chemicals shall be
1
This test method is under the jurisdiction of ASTM Committee D16 on
used in all tests. Unless otherwise indicated, it is intended that
Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of
all reagents conform to the specifications of the Committee on
Subcommittee D16.04 on Instrumental Analysis.
Analytical Reagents of theAmerican Chemical Society, where
Current edition approved Feb. 1, 2011. Published February 2011. Originally
approved in 1991. Last previous edition approved in 2006 as D5194 – 06. DOI:
10.1520/D5194-11.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
*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 ----------------------
D5194–11
4
TABLE 1 Specimen Size
such specifications are available. Other grades may be used,
provided it is first ascertained that the reagent is of sufficiently Estimated chloride, mg/kg Specimen volume, mL
0to5 100
high purity to permit its use without lessening the accuracy of
5to25 50
the determination.
6.2 Purity of Water—Unless otherwise indicated,
...
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:D5194–06 Designation:D5194–11
Standard Test Method for
1
Trace Chloride in Liquid Aromatic Hydrocarbons
This standard is issued under the fixed designation D5194; 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 This test method covers the determination of total chloride (organic and inorganic) in liquid aromatic hydrocarbons and
cyclohexane.
1.2 The test method is applicable to samples with chloride concentrations of 1 to 25 mg/kg.
1.3 Bromides and iodides, if present, will be calculated as chlorides.
1.4 Materials, such as styrene, that are polymerized by sodium biphenyl reagent cannot be analyzed by this test method.
1.5In1.5 In determining the conformance of the test results using this method to applicable specifications, results shall be
rounded off in accordance with the rounding-off method of Practice E29.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 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 a specific hazard statement, see Section 7.
2. Referenced Documents
2
2.1 ASTM Standards:
D891 Test Methods for Specific Gravity, Apparent, of Liquid Industrial Chemicals
D1193 Specification for Reagent Water
D3437 Practice for Sampling and Handling Liquid Cyclic Products
D3505 Test Method for Density or Relative Density of Pure Liquid Chemicals
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
2.2 Other Documents:
OSHA Regulations, 29 CFR paragraphs 1910.1000 and 1910.1200
3. Summary of Test Method
3.1 Aknownamountofhydrocarbonsampleistransferredintoaseparatoryfunnelcontainingtoluene.Sodiumbiphenylreagent
is added to convert organic halogens into inorganic halides. The excess reagent is decomposed with water and the phases are
separated.Theaqueousphaseisacidified,washed,andconcentrated.Acetoneisaddedandthesolutionistitratedwithsilvernitrate
solution.
4. Significance and Use
4.1 Organic and inorganic chlorine compounds can have a deleterious effect on equipment and reactions in processes involving
aromatic hydrocarbons.
4.2 Maximum chloride levels are often specified for process streams and for aromatic hydrocarbon products.
5. Apparatus
5.1 Titrator, potentiometric, recording, + 2000 mV range, 1 mV resolution with dispenser having a volume readout of 0.00 to
1
This test method is under the jurisdiction ofASTM Committee D16 onAromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee
D16.04 on Instrumental Analysis.
Current edition approved MarchFeb. 1, 2006.2011. Published March 2006.February 2011. Originally approved in 1991. Last previous edition approved in 20042006 as
D5194 – 046. DOI: 10.1520/D5194-06.10.1520/D5194-11.
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.
3
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
*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 ----------------------
D5194–11
9.99 mL or 0.00 to 99.99 mL and 0.01 % resolution.
5.2 Electrode, glass, reference.
5.3 Electrode, silver, billet type.
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
4
specifications are available. Othe
...
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