YS/T 227.11-2010 English PDF

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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: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 227.11-2010	209	Add to Cart	3 days	Mothods for chemical analysis of tellurium. Part 11: Determination silicon content. N-butanol extraction molybdenum blue spectrophotometry
YS/T 227.11-1994	199	Add to Cart	2 days	Determination of silicon content in tellurium--n-butyl alcohol extraction silicon-molybdenum blue photometric method	Obsolete

Similar standards

GB/T 3884.2   GB/T 3884.1   YS/T 252.1   YS/T 227.12   YS/T 227.1   YS/T 227.10   

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Older Standard (superseded by this standard): YS/T 227.11-1994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

---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.
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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