GB/T 23362.2-2009 English PDF

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GB/T 23362.2-2009: Methods for chemical analysis of high purity indium hydroxide -- Part 2: Determination of tin content -- Phenylfluorone spectrophotometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23362.2-2009	139	Add to Cart	3 days	Methods for chemical analysis of high purity indium hydroxide -- Part 2: Determination of tin content -- Phenylfluorone spectrophotometry	Valid

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Basic data

Standard ID: GB/T 23362.2-2009 (GB/T23362.2-2009)
Description (Translated English): Methods for chemical analysis of high purity indium hydroxide -- 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: 6,696
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 high-purity indium tin hydroxide amount. This section applies to the determination of high-purity indium tin hydroxide amount. Measuring range (mass fraction) of 0. 00005% to 0. 0040%.

GB/T 23362.2-2009: Methods for chemical analysis of high purity indium hydroxide -- Part 2: Determination of tin content -- Phenylfluorone 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.
Methods for chemical analysis of high purity indium hydroxide Part 2. Determination of tin content Phenylfluorone spectrophotometry. ICS 77.120 H66 National Standards of People's Republic of China High-purity indium hydroxide chemical analysis 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 23362 "high-purity indium hydroxide 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. Determination of loss on ignition 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 part by the Guangxi metallurgical products Quality Supervision, Inspection Station, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This section is of Fangchenggang in Guangxi Exit Inspection and Quarantine, Guangxi indium Industry Association, Guilin Institute of Technology participated in the drafting. The main drafters of this section. Huangzhao Min, Wei Li, Chen Jin, the Luoming Gui, Huang Xusheng, Zhou Sulian, Cui Xiang, Luo Peizhen. High-purity indium hydroxide chemical analysis Part 2. Determination of tin content Phenyl spectrophotometric

1 Scope

This section GB/T 23362 specifies the determination method of high-purity indium hydroxide in the amount of tin. This section applies to the determination of high-purity indium tin hydroxide, and measurement range (mass fraction) of 0.00005% to 0.0040%.

2 Method summary

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

3 Reagents

Unless otherwise stated, use only reagents and confirmed its purity deionized water or equivalent water analytically pure. 3.1 nitrate (ρ1.42g/mL), pure class distinctions. 3.2 sulfate (ρ1.84g/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 into 1000mL volumetric flask, 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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