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Test method of sodium cyanide and potassium cyanide products
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GB/T 23765-2009
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Basic data Standard ID | GB/T 23765-2009 (GB/T23765-2009) | Description (Translated English) | Test method of sodium cyanide and potassium cyanide products | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | G10 | Classification of International Standard | 71.060.01 | Word Count Estimation | 14,183 | Date of Issue | 2009-05-13 | Date of Implementation | 2010-01-01 | Quoted Standard | GB/T 3049-2006; GB/T 6682-2008; HG/T 3696.1; HG/T 3696.2; HG/T 3696.3 | Regulation (derived from) | PRC National Standard Approval Announcement 2009 No.6 (Total No.146) | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | Summary | This standard specifies the sodium and potassium cyanide visual inspection, sodium cyanide (or potassium) content, sodium hydroxide (or potassium hydroxide) content, sodium (or potassium) content, sodium formate (or formic acid potassium) content, Determination of iron content, chloride content, water, water insoluble content. This standard applies to sodium cyanide and potassium cyanide products. |
GB/T 23765-2009: Test method of sodium cyanide and potassium cyanide products---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.
Test method of sodium cyanide and potassium cyanide products
ICS 71.060.01
G10
National Standards of People's Republic of China
Determination of sodium and potassium cyanide products
Posted 2009-05-13
2010-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is the data appendix.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee chemical inorganic chemicals Club (SAC/TC63/SC1) centralized
This standard was drafted. Anqing Shuguang Chemical Co., Ltd., CNOOC Tianjin Chemical Research Institute, Hebei integrity have
Limited liability company.
Drafters of this standard. Chenzhang Bin, Wang Lin, Guofeng Xin, Shen Yinshan, Dongzhi Yan.
This standard is the first release.
Determination of sodium and potassium cyanide products
1 Scope
This standard specifies the sodium and potassium cyanide visual inspection, sodium cyanide (KCN), the content of sodium hydroxide (or potassium) content,
Sodium (or potassium) content of sodium (or potassium) content, chloride content, moisture, water-insoluble content, the determination of iron content.
This standard applies to sodium cyanide and potassium cyanide products.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard. However, encourage the parties to the agreement
Research on whether to use the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
General Method GB/T 3049-2006 industrial chemicals determination of iron content 1,10 Philippines spectrophotometry method
(ISO 6685. 1982, IDT)
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
Preparation of standard titration solution of HG/T 3696.1 inorganic chemical products, chemical analysis
Preparation of HG/T 3696.2 inorganic chemical products, chemical analysis of impurity standard solution
Preparations of HG/T 3696.3 inorganic chemical products, chemical analysis
3 Safety Warnings
Sodium cyanide and potassium cyanide are virulent, in the sampling and analysis operations should strictly implement the provisions of the standard product safety requirements, and strictly
Analysis of this standard procedures. See Appendix A cyanide-containing waste processing. In the analysis of acid, alkali and other corrosive reagents, make
Use should be very careful not to spill on the skin. As splashed on skin, wash immediately with plenty of water, severe cases should be treated immediately.
4 General Provisions
The standard reagents and water, did not indicate when additional requirements are specified analytical reagent refers to 6682-2008 and GB/T 's
Three water.
Standard titration solution used in the tests, the impurity standard solution, preparations and products, did not indicate when the other requirements, according
HG/T 3696.1, the provisions prepared HG/T 3696.2 and HG/T 3696.3 of.
5 visual inspection
5.1 solid product
Under natural light conditions, by visual judgment.
5.2 Liquid Products
The liquid product in 50mL colorimetric tube, under natural light conditions, by visual judgment.
6 Determination of sodium (or potassium) content
6.1 silver nitrate method (Arbitration Act)
6.1.1 Principle
Ammonia medium, silver ions and cyanide complexes quantitative reaction with silver nitrate solution as titrant, titration of cyanide ions, excess
Silver ions and potassium iodide to form a yellow precipitate, thereby indicating the endpoint of the titration. Calculated according to consumption and the concentration of the standard silver nitrate titration solution
content.
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