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GB/T 23936-2018: [Including 2019XG1] Sodium hexafluorosilicate for industrial use
Status: Valid GB/T 23936: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 23936-2018 | English | 279 |
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[Including 2019XG1] Sodium hexafluorosilicate for industrial use
| Valid |
GB/T 23936-2018
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| GB 23936-2009 | English | 479 |
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[GB/T 23936-2009] Sodium hexafluorosilicate for industrial use [including MODIFICATION 1]
| Obsolete |
GB 23936-2009
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PDF similar to GB/T 23936-2018
Basic data | Standard ID | GB/T 23936-2018 (GB/T23936-2018) | | Description (Translated English) | [Including 2019XG1] Sodium hexafluorosilicate for industrial use | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G12 | | Classification of International Standard | 71.060.50 | | Word Count Estimation | 14,149 | | Date of Issue | 2018-06-07 | | Date of Implementation | 2019-01-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 23936-2018: [Including 2019XG1] Sodium hexafluorosilicate for industrial use---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.
Sodium hexafluorosilicate for industrial use
ICS 71.060.50
G12
National Standards of People's Republic of China
Replace GB/T 23936-2009
Industrial sodium fluorosilicate
Published on.2018-06-07
2019-01-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 23936-2009 "Industrial sodium fluorosilicate", compared with GB/T 23936-2009, except editorial modification
The technical changes are as follows.
--- Typed (see Chapter 4);
---Delete the "Qualified Goods" level (see 4.2 of the.2009 edition);
--- Modified sulfate (as SO4), phosphorus pentoxide (P2O5) indicators (see 5.2,.2009 edition 4.2);
--- Remove the fineness (through the 250μm test sieve) indicators (see 4.2 of the.2009 edition);
--- Increase the indicator of heavy metals (see 5.2).
This standard was proposed by the China Petroleum and Chemical Industry Federation.
This standard is under the jurisdiction of the National Chemical Standardization Technical Committee of the Inorganic Chemical Subcommittee (SAC/TC63/SC1).
This standard was drafted. Yunnan Fluorine Environmental Protection Technology Co., Ltd., Inner Mongolia Xinfudi Technology Co., Ltd., Guizhou Province Product Quality
Supervision and Inspection Institute, Hangzhou Grinda Electronic Materials Co., Ltd., Changyi Longgang Inorganic Silicon Co., Ltd., Polyfluoride Chemical Co., Ltd.
Division, Beijing Puren Meihua Environmental Protection Technology Co., Ltd., Tianjin University of Technology, Weifang Menjie Chemical Co., Ltd., Yikeli (Tianjin) Environmental Protection Division
Technology Development Co., Ltd., CNOOC Tianjin Chemical Research and Design Institute Co., Ltd.
The main drafters of this standard. Lin Minghui, Chen He, Zhang Jiangang, Yin Yunjian, Wang Jingwei, Shu Shasha, Liu Jianjun, Li Meizhen, Liu Quanjun, Li Zhilin,
Liu Guoxiang, Gao Wenlong, Chen Jianmin, Chen Yuying, Chen Xuehang, Zhang Ke, and Gong Chuangzhou.
The previous versions of the standards replaced by this standard are.
---GB/T 23936-2009.
Industrial sodium fluorosilicate
Warning---According to the provisions of Chapter 6 of GB 12268-2012, this product belongs to the toxic substance of item 6.1. When contacting, it should be safe. test
Some of the reagents used in the test method are corrosive and should be handled with care. If necessary, it should be carried out in a fume hood. If splashed on the skin
Rinse immediately with water. In severe cases, seek medical attention immediately.
1 Scope
This standard specifies the classification, requirements, test methods, inspection rules, marking, labeling, packaging, transportation and storage of industrial sodium fluorosilicate.
This standard applies to industrial sodium fluorosilicate. This product is used as a raw material for the production of fluorine chemical products. It can also be used as an enamel flux and glass emulsification.
Coagulant, acid-resistant cement and acid-resistant concrete coagulant and wood preservatives.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB 190 dangerous goods packaging mark
GB/T 191-2008 packaging storage and transportation icon
GB/T 3049-2006 General method for determination of iron content of industrial chemical products 1,10-phenanthroline spectrophotometric method
General rules for sampling GB/T 6678 chemical products
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
Inorganic chemical products -- Preparation of standard solutions, preparations and products for chemical analysis - Part 1 . standard titration
Liquid preparation
Standard Practice for Preparation of Standard Solutions, Preparations and Products for Chemical Analysis of Inorganic Chemical Products - Part 2. Impurity Standard Dissolution
Liquid preparation
Preparation of standard solutions, preparations and products for chemical analysis - Part 3. Preparations and preparations
Preparation
3 Molecular formula and relative molecular mass
Molecular formula. Na2SiF6
Relative molecular mass. 188.07 (according to.2016 international relative atomic mass)
4 type
Industrial sodium fluorosilicate is divided into two types, type I (dry) and type II (semi-dry).
5 requirements
5.1 Appearance. Type I white powder; Type II white crystal.
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