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GB/T 3253.4-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of sulfur content in antimony -- Burning and sodium hydroxide titration method
Status: Valid GB/T 3253.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3253.4-2009 | English | 139 |
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Methods for chemical analysis of antimony and antimony trioxide -- Determination of sulfur content in antimony -- Burning and sodium hydroxide titration method
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GB/T 3253.4-2009
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| GB/T 3253.4-2001 | English | 199 |
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Methods for chemical analysis of antimony -- Determination of sulfur content
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GB/T 3253.4-2001
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| GB/T 3253.4-1982 | English | RFQ |
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Chemical analysis of antimony--The neocuproine photometric method for determination of copper
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GB/T 3253.4-1982
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Basic data | Standard ID | GB/T 3253.4-2009 (GB/T3253.4-2009) | | Description (Translated English) | Methods for chemical analysis of antimony and antimony trioxide -- Determination of sulfur content in antimony -- Burning and sodium hydroxide titration method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G13 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,625 | | Date of Issue | 2009-04-08 | | Date of Implementation | 2010-02-01 | | Older Standard (superseded by this standard) | GB/T 3253.4-2001 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.4 (Total No.144) | | Issuing agency(ies) |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 determination of the amount of sulfur and antimony. This section applies to the determination of antimony sulfur content. Measurement range: 0. 0020% to 0. 10%. | GB/T 3253.4-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of sulfur content in antimony -- Burning and sodium hydroxide titration method
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Methods for chemical analysis of antimony and antimony trioxide. Determination of sulfur content in antimony. Burning and sodium hydroxide titration method
ICS 77.120.99
G13
National Standards of People's Republic of China
Replacing GB/T 3253.4-2001
Methods for chemical analysis of antimony and antimony trioxide
Determination of antimony sulfur content
And combustion method
Posted 2009-04-08
2010-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3253 "Methods for chemical analysis of antimony and antimony trioxide," a total of 11 parts.
--- GB/T 3253.1-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of arsenic content of arsenic molybdenum blue spectrophotometric method;
--- Determination of GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide amount of iron phenanthroline spectrophotometry;
--- Flame atomic GB/T 3253.3-2008 Methods for chemical analysis of antimony and antimony trioxide amount of lead absorption spectrometry;
--- GB /determination of sulfur content of antimony and antimony trioxide chemical analysis of combustion and T 3253.4-2009 law;
--- GB/T 3253.5-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of copper content - Flame atomic absorption spectrometry;
--- GB/T 3253.6-2008 and antimony trioxide of selenium content - Atomic fluorescence spectrometry;
--- GB/T 3253.7-2009 Methods for chemical analysis of antimony and antimony trioxide bismuth content - Atomic fluorescence spectrometry;
--- GB/T 3253.8-2009 Methods for chemical analysis of antimony and antimony trioxide - Determination of the amount of iodometry;
--- Flame atomic GB/T 3253.9-2009 Methods for chemical analysis of antimony and antimony trioxide amount of cadmium absorption spectrometry;
--- GB/T 3253.10-2009 Methods for chemical analysis of antimony and antimony trioxide - Determination of the amount of mercury atomic fluorescence spectrometry;
--- Atomic GB/T 3253.11-2009 Methods for chemical analysis of antimony and antimony trioxide bismuth content absorption spectrometry.
This is Part 4.
This Part replaces GB/T 3253.4-2001 "chemical analysis of antimony determination of sulfur content." Compared with GB/T 3253.4-2001,
This section has the following changes.
--- Text format has been modified;
--- Complements the precision and quality assurance and control provisions.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section is responsible for drafting unit. tin mine flash-antimony industry limited liability company.
Participated in the drafting of this section. Hunan Chenzhou Mining Co., Ltd., Beijing General Research Institute of Mining and Metallurgy.
The main drafters of this section. Cuide Hai, Song should ball, cypress Yang, Zong Yi, Wu Shaobo, Xu Xiaoyan.
This part of the standard replaces the previous editions are.
--- GB/T 3253.6-1982, GB/T 3253.4-2001.
Methods for chemical analysis of antimony and antimony trioxide
Determination of antimony sulfur content
And combustion method
1 Scope
GB/T 3253 provisions of this part of the determination of antimony sulfur content.
This section applies to the determination of antimony in sulfur content. Measurement range. 0.0020% to 0.10%.
2 Method summary
High temperature combustion of oxygen in the sample stream is converted to sulfur dioxide, hydrogen peroxide absorbed and converted to sulfuric acid to methyl red - methylene
Blue solution as indicator, titrated with sodium hydroxide standard titration solution to the solution from purple to bright green is the end.
3 Reagents
Unless otherwise indicated, the reagents used in this section refer to water and analytical grade and third grade water.
3.1 potassium hydroxide.
3.2 anhydrous calcium chloride.
3.3 Absorption of hydrogen peroxide solution (98 + 2).
3.4 methyl red - methylene blue mixed indicator. 20 unit volume of methyl red ethanol solution (0.3g/L) and 3 per unit volume of methylene blue solution
(1g/L) and mixed.
3.5 sodium hydroxide standard titration solution.
3.5.1 preparation
Weigh 0.2g sodium hydroxide, placed 250mL beaker, cooled boiled water to dissolve, dilute to 1000mL, and mix. store
Plastic bottle.
3.5.2 Calibration
Weigh 5.0000g advance by 100 ℃ ~ 105 ℃ drying potassium hydrogen phthalate (reference reagent) 2h, and placed in 500mL beaker
Water, heated to boiling to dissolve the cooled clear, transferred to 1000mL volumetric flask, dilute with boiled water after cooling to the mark and mix.
1mL solution containing 0.0050g of potassium hydrogen phthalate.
Accurate Pipette 5.00mL potassium hydrogen phthalate standard solution was placed in 300mL conical flask, add 50mL boiling water after cooling,
2 drops of phenolphthalein ethanol solution (10g/L), with a drop of sodium hydroxide standard titration solution to light red is the end.
Along with the calibration blank test.
According to equation (1) to calculate the actual concentration of sodium hydroxide standard titration solution.
Ba = Vp × 0.0050 (Vp Vp 1- 0) × 0.2042 ×
100 (1)
Where.
Ba --- the actual concentration of sodium hydroxide standard titration solution, expressed in moles per liter (mol/L);
Vp --- pipetting volume of potassium hydrogen phthalate standard solution, in milliliters (mL);
Volume consumed Vp 1 --- Calibration sodium hydroxide standard titration solution, in milliliters (mL);
V0 --- when nominal volume of sodium hydroxide solution consumed in the blank standard titration solution, in milliliters (mL);
0.0050 --- concentration of potassium hydrogen phthalate standard solution, in grams per milliliter (g/mL);
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