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YS/T 227.11-2010: Mothods for chemical analysis of tellurium. Part 11: Determination silicon content. N-butanol extraction molybdenum blue spectrophotometry YS/T 227.11: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 227.11-2010 | English | 209 |
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Mothods for chemical analysis of tellurium. Part 11: Determination silicon content. N-butanol extraction molybdenum blue spectrophotometry
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YS/T 227.11-2010
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| YS/T 227.11-1994 | English | 199 |
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Determination of silicon content in tellurium--n-butyl alcohol extraction silicon-molybdenum blue photometric method
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YS/T 227.11-1994
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Basic data | Standard ID | YS/T 227.11-2010 (YS/T227.11-2010) | | Description (Translated English) | Mothods for chemical analysis of tellurium. Part 11: Determination silicon content. N-butanol extraction molybdenum blue spectrophotometry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,630 | | Date of Issue | 2010-11-22 | | Date of Implementation | 2011-03-01 | | Older Standard (superseded by this standard) | YS/T 227.11-1994 | | Regulation (derived from) | MIIT (2010) No. 126 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the tellurium Determination of silicon content. This standard applies to the determination of tellurium in silicon. Measuring range: 0. 0005% to 0. 0030% | YS/T 227.11-2010: Mothods for chemical analysis of tellurium. Part 11: Determination silicon content. N-butanol extraction molybdenum blue spectrophotometry
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Mothods for chemical analysis of tellurium.Part 11. Determination silicon content.N-butanol extraction molybdenum blue spectrophotometry
ICS 77.120.99
H13
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 227.11-1994
Methods for chemical analysis of tellurium
Part 11. Determination of the amount of silicon
Butanol silicon molybdenum blue spectrophotometry
Part 11. Determinationofsiliconcontent-
Issued on. 2010-11-22
2011-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 227 "tellurium chemical analysis methods," a total of 12 parts.
--- Part 1. Determination of bismuth content hydride generation - atomic fluorescence spectrometry;
--- Part 2. Determination of aluminum content Chromazurol S- bromo cylpyridinium micellar solubilization spectrophotometry;
--- Part 3. Determination of lead content by flame atomic absorption spectrometry;
--- Part 4. Determination of iron content - Phenanthroline spectrophotometric method;
--- Part 5. determination of selenium content of 2,3-diaminonaphthalene spectrophotometry;
--- Part 6. Determination of copper content of solid-liquid separation - flame atomic absorption spectrometry;
--- Part 7. Determination of sulfur content by inductively coupled plasma atomic emission spectrometry;
--- Part 8. magnesium, sodium content - Flame atomic absorption spectrometry;
--- Part 9. Determination of tellurium content of potassium dichromate - ammonium ferrous sulfate volumetric method;
--- Part 10. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry;
--- Part 11. Determination of silicon content of n-butanol silicon molybdenum blue spectrophotometric method;
--- Part 12. bismuth, aluminum, lead, iron, selenium, copper, magnesium, sodium, arsenic content - Inductively coupled plasma atomic emission spectrometry.
This is Part 11.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial replacement of YS/T 227.11-1994 "determination of tellurium in the amount of silicon (n-butanol silicon molybdenum blue photometric method)." versus
YS/T 227.11-1994 compared, this section has the following changes.
--- Complements the precision, quality assurance and control provisions;
--- Complements the "test report" requirement.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Zhuzhou Smelter Group Co., Ltd.
This section is drafted. Shuikoushan Nonferrous Metals Group Limited.
Participated in the drafting of this section. Beijing Mining Research Institute, Guangzhou Nonferrous Metal Research Institute.
The main drafters of this section. Zeng Guangming, Tan Qian, Zhou Aiqing, Gao Ying Jian, Dai Fengying, Lin Shan.
This part of the standard replaces the previous editions are.
--- YS/T 227.11-1994;
--- GB/T 2147-1980.
Methods for chemical analysis of tellurium
Part 11. Determination of the amount of silicon
Butanol silicon molybdenum blue spectrophotometry
Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
YS/T of the provisions of the section 227 determination of tellurium content of silicon.
This section applies to the determination of tellurium content of silicon. Measurement range. 0.0005% to 0.0030%.
2 principle of the method
After the sample is dissolved by acid, at pH values of 5.5 to 6.5 in the hydrolysis separation tellurium, about 1.2 on the pH of ammonium molybdate added to form a silicon
Heteropolyoxomolybdate in with 2mol/L sulfuric acid medium butanol silicon molybdenum heteropoly acid, reduced to silicon-molybdenum blue with stannous chloride, in the spectrophotometer
At a wavelength of 700nm, the measured absorbance, calculate the amount of silicon using standard curve method.
3 Reagents
The reagents Unless otherwise specified, the rest are excellent pure above, an analysis of water are water. Reagents and standard solutions were formulated after
Store in plastic bottle.
3.1 hydrochloride (ρ1.19g/mL).
Nitrate 3.2 (ρ1.43g/mL).
3.3 sulfate (ρ1.84g/mL).
3.4 sulfate (12).
3.5 sulfuric acid (19) with n-butanol saturated.
3.6 sulfuric acid (1.5 98.5).
3.7 nitric acid (11).
3.8 Hydrofluoric acid. after redistilled use.
3.9 saturated solution of boric acid.
3.10 Sodium hydroxide solution (400g/L).
3.11 ethanol. AR.
3.12 n-butanol, AR.
3.13 ammonium molybdate solution (200g/L). Weigh 20g of high purity ammonium molybdate was dissolved in 80mL water, cooled, diluted with water to 100mL, mix
Even after filtration use.
3.14 tin dichloride solution (100g/L). Weigh 10g tin dichloride in the beaker, add 50mL of hydrochloric acid (3.1), at room temperature to dissolve
After adding water to 100mL mix. Using now.
3.15 Hydrazine sulfate solution (5g/L). Weigh 0.5g of sulfuric acid and Hydrazine sulfate dissolved in 100mL (3.6), and mix well.
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