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GB/T 11987-2022: Surface active agents - Technical alkane sulphonates - Determination of total alkane sulphonates content
Status: Valid GB/T 11987: Evolution and historical versions
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| GB/T 11987-2022 | English | 199 |
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Surface active agents - Technical alkane sulphonates - Determination of total alkane sulphonates content
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GB/T 11987-2022
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| GB/T 11987-1989 | English | 169 |
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Surface active agent. Technical alkane sulphonates. Determination of total alkane sulphonates content
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GB/T 11987-1989
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PDF similar to GB/T 11987-2022
Basic data | Standard ID | GB/T 11987-2022 (GB/T11987-2022) | | Description (Translated English) | Surface active agents - Technical alkane sulphonates - Determination of total alkane sulphonates content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G72 | | Classification of International Standard | 71.100.40 | | Word Count Estimation | 10,175 | | Date of Issue | 2022-12-30 | | Date of Implementation | 2023-07-01 | | Older Standard (superseded by this standard) | GB/T 11987-1989 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 11987-2022: Surface active agents - Technical alkane sulphonates - Determination of total alkane sulphonates content
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 71.100.40
CCSG72
National Standards of People's Republic of China
Replacing GB/T 11987-1989
Surfactant Industry Alkane Sulfonate
Determination of total alkane sulfonate content
(ISO 6122.1978, MOD)
Posted on 2022-12-30
2023-07-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"
to be drafted.
This document replaces GB/T 11987-1989 "Determination of Total Alkane Sulfonate Content of Surfactant Industrial Alkane Sulfonate", and
Compared with GB/T 11987-1989, except for structural adjustment and editorial changes, the main technical changes are as follows.
--- The determination method was changed from the volumetric method to the same potentiometric titration method as in ISO 6122 (see 8.2, 6.2 of the 1989 edition).
This document is modified to adopt ISO 6122.1978 "Determination of total alkane sulfonate content of alkane sulfonate in surfactant industry".
Compared with ISO 6122.1978, this document has made the following structural adjustments.
---6.4 corresponds to 6.3 in ISO 6122.1978, 6.5 corresponds to 6.1 in ISO 6122.1978, and 6.7 corresponds to ISO 6122.1978
In 6.2, 6.1, 6.2, 6.3, 6.6, 6.8 have been added;
---Appendix A corresponds to 9.2 in ISO 6122.1978.
The technical differences between this document and ISO 6122.1978 and their reasons are as follows.
--- Replace ISO 607 (see Chapter 7) with the normatively quoted GB/T 13173 to adapt to my country's technical conditions and improve operability;
---Replace ISO 894 (see 8.2) with the normatively quoted GB/T 38729-2020 to adapt to my country's technical conditions and improve operability
active;
---Replace distilled water or water of equivalent purity with water conforming to GB/T 6682 grade 3 or above, in order to adapt to the technical conditions of our country, improve
High operability (see Chapter 5);
--- The calculation formula (1) of the total alkane sulfonate content has been changed, and the silver nitrate equivalent concentration T in ISO 6122.1978 is changed according to the current
In the normative expression changed to the concentration c of the amount of substance of silver nitrate;
---Changed the expression of precision, compiled according to the actual situation in our country, and added according to the precision results given by ISO 6122.1978
Limits (see 9.2).
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China National Light Industry Council.
This document is under the jurisdiction of the National Standardization Technical Committee on Surfactants and Detergents (SAC/TC272).
This document is drafted by. China Research Institute of Daily Chemistry Co., Ltd., Qingdao Agricultural University, Sinolight Daily Chemical Inspection and Certification Co., Ltd.,
Zhejiang Keli Technology Co., Ltd., Shenzhen Baggme Biotechnology Co., Ltd., Zhongshan Eternal Detection Technology Co., Ltd.
The main drafters of this document. Xue Changhui, Li Xiaorui, Li Xiaohui, Feng Huahua, Guo Hongtao, Chen Lihong.
The release status of previous versions of this document and the documents it replaces are as follows.
---First published as GB/T 11987-1989 in 1989;
--- This is the first revision.
Surfactant Industry Alkane Sulfonate
Determination of total alkane sulfonate content
1 Scope
This document describes a method for the determination of the total alkane sulfonate content (sum of mono and di) in industrial alkane sulfonates containing small amounts of alkanes.
This document applies to the determination of the content of alkali metal salts in the sulfochlorination and sulfooxidation products of all normal alkanes.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document.
GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696.1987, MOD)
GB/T 13173 Surfactant detergent test method (GB/T 13173-2021, ISO 607.1980, ISO 697.
1981, ISO 4313.1976, ISO 4321.1977, ISO 4325.1990, ISO 21264.2019, MOD)
GB/T 38729-2020 Surfactant industry primary alkyl sodium sulfate test method (ISO 894.1977, MOD)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
alkanesulphonate
Alkali metal sulfonates present in the sulfochlorination and sulfooxidation products of pure linear alkanes with 12 to 20 carbon atoms.
4 principles
Disperse the test portion of industrial alkylsulfonate in sodium sulfate solution, and add a mixture of n-butanol and acetone to precipitate sodium sulfate decahydrate
compounds and some sodium chloride.
Filtration to obtain a mixture of alkane sulfonates (including mono- and di-alkane sulfonates) may also contain a small amount of sodium chloride.
Evaporate the solvent to remove a small amount of alkanes, determine the content of alkane sulfonate by gravimetric method, and determine the residual sodium chloride by potentiometric titration.
5 reagents
Unless otherwise specified, only reagents confirmed to be analytically pure and water that meets GB/T 6682 grade 3 or above are used in the analysis.
5.1 Acetone.
5.2 The mixture of n-butanol and acetone, the volume ratio is 3.2.
5.3 Sodium sulfate solution,.200g/L solution.
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