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GB/T 23364.2-2009 English PDF

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GB/T 23364.2-2009: Methods for chemical analysis of high purity indium oxide -- Part 2: Determination of tin content -- Phenylfluorone spectrophotometry
Status: Valid
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GB/T 23364.2-2009English139 Add to Cart 3 days [Need to translate] Methods for chemical analysis of high purity indium oxide -- Part 2: Determination of tin content -- Phenylfluorone spectrophotometry Valid GB/T 23364.2-2009

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Basic data

Standard ID GB/T 23364.2-2009 (GB/T23364.2-2009)
Description (Translated English) Methods for chemical analysis of high purity indium oxide -- Part 2: Determination of tin content -- Phenylfluorone spectrophotometry
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H66
Classification of International Standard 77.120
Word Count Estimation 6,686
Date of Issue 2009-03-19
Date of Implementation 2010-01-01
Regulation (derived from) National Standard Approval Announcement 2009 No.3 (Total No.143)
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 high purity tin indium oxide. This section applies to the determination of tin in the amount of high-purity indium. Measuring range (mass fraction) of 0. 00005% to 0. 0040%.

GB/T 23364.2-2009: Methods for chemical analysis of high purity indium oxide -- Part 2: Determination of tin content -- Phenylfluorone spectrophotometry


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Methods for chemical analysis of high purity indium oxide.Part 2. Determination of tin content.Phenylfluorone spectrophotometry ICS 77.120 H66 National Standards of People's Republic of China High-purity indium oxide chemical analysis methods Part 2. Determination of tin content Phenyl spectrophotometric Posted 2009-03-19 2010-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 23364 "high-purity indium oxide chemical analysis method" is divided into six sections. Part --- 1. Determination of arsenic content by atomic fluorescence spectrometry; Part --- 2. Determination of tin content of phenyl spectrophotometric; Part --- 3. Determination of antimony content - Atomic Fluorescence Spectrometry; --- Part 4. aluminum, iron, copper, zinc, cadmium, lead and thallium content - Inductively Coupled Plasma Mass Spectrometry; Part --- 5. Determination of chlorine content of thiocyanate mercury spectrophotometry; Part --- 6. loss on ignition measured weighing method. This is Part 2. 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 Fangchenggang Entry-Exit Inspection and Quarantine Bureau, China Nonferrous Metals Institute of Standards Metrology and Quality industrial drafted. This part by the Guangxi metallurgical products Quality Supervision, Inspection Station, Guangxi indium Industry Association, Guilin Institute of Technology participated in the drafting. This part drafters. Luoming Gui, Huangxiao Ke, Li Shiping, Huangzhao Min, Wei Li, Zhou Sulian, Chen Yongxin, Liang Yi. High-purity indium oxide chemical analysis methods Part 2. Determination of tin content Phenyl spectrophotometric

1 Scope

This section GB/T 23364 specifies the determination of tin content of high-purity indium oxide. This section applies to the determination of high-purity indium tin amount, the measurement range (mass fraction) of 0.00005% to 0.0040%.

2 Method summary

Sample with sulfuric and nitric acid decomposition, heating evaporation to remove excess nitric acid in sulfuric acid medium, tin (Ⅳ) and Phenylfluorone - bromo - hexadecyl Alkyl trimethyl ammonium forms a colored complex measured absorbance at the wavelength of 510nm at. Calculate the amount of tin. Chromogenic solution, respectively containing 1g indium, 1mg magnesium, 0.5mg of copper, cadmium, zinc, aluminum, thallium, 0.1mg of lead, arsenic, antimony, iron does not interfere with tin Determination.

3 Reagents

Unless otherwise stated, use only reagents and confirmed its purity deionized water or equivalent water analytically pure. 3.1 nitric acid (ρ about 1.42g/mL), pure class distinctions. 3.2 sulfuric acid (ρ about 1.84g/mL), pure class distinctions. 3.3 sulfate (1 + 3). 3.4 ethanol. 3.5 tartaric acid solution (50g/L). 3.6 potassium permanganate solution (10g/L). 3.7 ascorbic acid solution (20g/L). Per 100mL ascorbic acid solution was added 5 drops of sulfuric acid (3.3), and mix. Store in a brown bottle (Stable for two weeks). 3.8 Phenylfluorone solution (0.4g/L). Weigh 0.08g Phenylfluorone in 195mL anhydrous ethanol (3.4) and 5mL sulfuric acid (3.3), and mix well. Store in a brown bottle. 3.9 bromo cetyl trimethyl ammonium hydroxide solution (30g/L). Weigh 6g bromo cetyl trimethyl ammonium 200mL of absolute ethanol was added (3.4), dissolved by heating at 50 ℃ ~ 60 ℃ water bath, and mix. Store in a brown bottle. 3.10 Storage tin standard solution. Weigh 0.1000g metal tin (mass fraction ≥99.99%), placed in 300mL beaker, add 10mL sulfuric acid (3.2), cover the surface of the pan, over low heat to dissolve. Remove the cooling, Chit 30mL, cooled to room temperature. Moved 1000mL capacity Bottle with sulfuric acid (3.3) Wash the surface of the dish and cup wall and dilute to volume, and mix. This solution 1mL containing 100μg tin. 3.11 tin standard solution. Pipette 5.00mL tin standard stock solution (3.10), placed in 250mL volumetric flask, dilute sulfuric acid (3.3) to Mark and shake. This solution 1mL containing 2μg tin.

4 instruments and equipment

Spectrophotometer.

5 Sample

The specimen should be 105 ℃ ~ 110 ℃ drying 2h, placed in a desiccator to cool to room temperature.

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