GB/T 23834.2-2009Chemical analysis method for stannous sulfate - Part 2: Determination of insoluble substance in hydrochloric acid - Gravimetric method (English PDF)
硫酸亚锡化学分析方法 第2部分：盐酸不溶物的测定 重量法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 18, 2009
Implementation date
February 1, 2010
Scope
GB/T 23834.2-2009 is the English-translated version of 硫酸亚锡化学分析方法 第2部分：盐酸不溶物的测定 重量法.
GB/T 23834.2-2009 is the Chinese standard "Chemical analysis method for stannous sulfate - Part 2: Determination of insoluble substance in hydrochloric acid - Gravimetric method".
Its scope clause reads: This section specifies the method for determination of the principles of stannous sulfate in hydrochloric acid insoluble content, safety tips, general provisions, reagents, instruments, Analysis procedures and results of calculations.
This section applies to the determination of stannous hydrochloric acid insoluble content of sulfuric acid. Measurement range. 0.001% to 0.05%. Its clauses include principle of the method; safety tips; general provisions; reagents; instruments and equipment.
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Document preview — GB/T 23834.2-2009
National Standard of the People's Republic of China
- ICS
- 71.060.01
- Classification
- G 10
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 PRINCIPLE OF THE METHOD
- 4 Safety Tips
- 5 General Provisions
- 6 Reagents
- 7 instruments and equipment
1 Scope
This section specifies the method for determination of the principles of stannous sulfate in hydrochloric acid insoluble content, safety tips, general provisions, reagents, instruments,
Analysis procedures and results of calculations.
This section applies to the determination of stannous hydrochloric acid insoluble content of sulfuric acid. Measurement range. 0.001% to 0.05%.
2 Normative references
The following documents contain provisions which, through reference GB/T 23834 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Research into whether the parties to the agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB/T 603 chemical reagent test methods in the formulation and preparation of products (GB/T 603-2002, ISO 6353-1 with. 1982,
NEQ)
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
Preparations of HG/T 3696.3 inorganic chemical products, chemical analysis
3 PRINCIPLE OF THE METHOD
Soluble salt is stannous sulfate, stannous ion but easily hydrolyzed stannous hydroxide [Sn (OH) 2Ksp = 1.4 × 10-28], because
The dissolution with hydrochloric acid, filtered, washed and dried to obtain the content of hydrochloric acid insolubles.
4 Safety Tips
Reagents used in this test method is corrosive, be careful when operating! As water immediately splashed on the skin or eyes
Flushing, severe cases should be treated immediately.
5 General Provisions
This standard reagents and water, did not indicate when the other requirements, refer to analytically pure reagents and GB/T 6682-2008 stipulated three
Grade water. Used in the test preparation and products, did not indicate when the other requirements, according to GB/T 603 or HG/T 3696.3 of preparation.
6 Reagents
6.1
hydrochloric acid;
6.2 hydrochloric acid solution
2 + 1;
6.3 Silver nitrate solution
10g/L.
7 instruments and equipment
7.1 sintered glass crucible
sand core pore size of 5µm ~ 15µm.
Glass sand crucible should always use 1 + 1 hydrochloric acid boiling 15min ~ 30min, and then tap water rinse, washed three times with three water,
After then dip in boiling water three 15min, hot filtration at 105 °C ± 2 °C under dried to constant weight.
GB/T 23940-2021 | GB/T 23769-2009 | GB/T 23774-2009 | GB/T 23834.7-2026 | GB/T 23834.5-2009 | GB/T 23834.4-2009 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 23834.1-2009 — Chemical analysis method for stannous sulfate - Part 1: Determination of stannous sulfate content - Volumetric method of potassium dichromate
GB/T 23834.3-2009 — Chemical analysis method for stannous sulfate - Part 3: Determination of alkali metals sulfate and alkaline-earth metals sulfate - Gravimetric method
GB/T 23834.4-2009 — Chemical analysis method for stannous sulfate - Part 4: Determination of lead and copper content - Flame atomic absorption spectrometry
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