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YS/T 38.1-2009 English PDF

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YS/T 38.1-2009: Chemical analysis methods of high pure gallium. Part 1: Determination of silicon content. Molybdenum blue spectrophotometry

YS/T 38.1: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 38.1-2009English209 Add to Cart 3 days [Need to translate] Chemical analysis methods of high pure gallium. Part 1: Determination of silicon content. Molybdenum blue spectrophotometry   YS/T 38.1-2009
YS/T 38.1-1992English199 Add to Cart 2 days [Need to translate] (Methods for chemical analysis of high purity gallium. Determination of silicon content - Molybdenum blue spectrophotometric) Obsolete YS/T 38.1-1992

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Basic data

Standard ID YS/T 38.1-2009 (YS/T38.1-2009)
Description (Translated English) Chemical analysis methods of high pure gallium. Part 1: Determination of silicon content. Molybdenum blue spectrophotometry
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H12
Classification of International Standard 77.040.30
Word Count Estimation 6,694
Date of Issue 2009-12-04
Date of Implementation 2010-06-01
Older Standard (superseded by this standard) YS/T 38.1-1992
Regulation (derived from) MIIT [2009] No. 66
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the purity gallium Determination of silicon content. This standard applies to gallium (99. 9999%) of silicon content. Measuring range ~ 0. 00005% 0. 00001%.

YS/T 38.1-2009: Chemical analysis methods of high pure gallium. Part 1: Determination of silicon content. Molybdenum blue spectrophotometry


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Chemical analysis methods of high pure gallium.Part 1. Determination of silicon content.Molybdenum blue spectrophotometry ICS 77.040.30 H12 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 38.1-1992 Methods for chemical analysis of high purity gallium Part 1. Determination of the amount of silicon Molybdenum blue spectrophotometric method Posted 2009-12-04 2010-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 38 "high purity gallium chemical analysis method" is divided into two parts. --- Part 1. "Chemical analysis of gallium high-purity silicon content - Molybdenum blue spectrophotometric method"; --- Part 2. "high purity gallium chemical analysis of magnesium, titanium, chromium, manganese, nickel, cobalt, copper, zinc, cadmium, tin, lead, bismuth content - Inductively Coupled Plasma Mass Spectrometry. " This section YS/T 38 - Part 1. The partial replacement of YS/T 38.1-1992 "purity gallium chemical analysis of molybdenum blue spectrophotometric method for determination of silicon content." This section compared with YS/T 38.1-1992, have the following main changes. --- The original method of presentation format has been modified. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This section is responsible for drafting unit. Beijing Nonferrous Metal Research Institute. Participated in the drafting of this section. Zhuzhou Smelter Group, Emei Semiconductor plant. The main drafters of this section. Liu Ying, Liu Hong, Gao Yan, Jin Zhihong, Wang Yan. This part of the standard replaces the previous editions are. --- YS/T 38.1-1992. Methods for chemical analysis of high purity gallium Part 1. Determination of silicon content - Molybdenum blue spectrophotometric method

1 Scope

YS/T of the provisions of section 38 of the method for the determination of silicon content in high purity gallium. This section applies to gallium (99.9999%) Determination of silicon content. Measurement range from 0.00001% to 0.00005%.

2 Method summary

Sample decomposition with hydrochloric acid gas at about 200 ℃ volatile separation of gallium trichloride; hydrofluoric acid solution polymerization of silicic acid, boric acid complex fluoride ions; Silicon molybdenum blue method in a spectrophotometer absorbance was measured at a wavelength of 810nm.

3 Reagents

The water in this portion of deionized water (resistivity greater than 15MΩ · cm). 3.1 hydrochloride (ρ1.19g/mL). 3.2 sulfate (ρ1.84g/mL), pure class distinctions. 3.3 sulfate (35 + 1), the preparation of sulfuric acid (3.2). 3.4 sulfate (1 + 1), the preparation of sulfuric acid (3.2). 3.5 HF. hydrofluoric acid (excellent pure) platinum by distillation was purified by distillation or polytetrafluoroethylene sub-boiling distillation purified by distillation. 3.6 boric acid (40g/L), pure class distinctions. 3.7 Ammonium molybdate (50g/L), high purity. 3.8 tartaric acid (30%), pure class distinctions. 3.9 reducing agent. 1-amino-2-naphthol -4-2- acid (2mg/mL). Silicon 3.10 Standard stock solution. Weigh 0.2139g silicon dioxide were placed in a platinum crucible, sodium carbonate and potassium carbonate was added 2g (2.1) mixed Co-reagent, stir melted until clear. After cooling, transferred to 1000mL volumetric flask, dilute to the mark, mix, immediately go to a plastic bottle in. This solution 1mL containing 100μg silicon. 3.11 Silicon standard solution. Pipette 10.0mL silicon standard stock solution (3.10) into 1000mL volumetric flask, dilute to the mark with water, mix Uniform, immediately go to a plastic bottle. This solution 1mL containing 1μg silicon.

4 Instrument

4.1 Spectrophotometer. 4.2 gallium separation means. Step 5 Analysis 5.1 Sample Weigh 1g sample, accurate to 0.0001g. 5.2 Determination of the number of Three independently measured sample and averaged. 5.3 blank test Along with sample blank test.

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