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YS/T 981.5-2014 English PDF

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YS/T 981.5-2014: Methods for chemical analysis of high pure indium-Determination of thallium content. Rhodamine B spectrophotometric method
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YS/T 981.5-2014English159 Add to Cart 3 days [Need to translate] Methods for chemical analysis of high pure indium-Determination of thallium content. Rhodamine B spectrophotometric method Valid YS/T 981.5-2014

PDF similar to YS/T 981.5-2014


Standard similar to YS/T 981.5-2014

GB/T 14849.3   GB/T 14849.1   GB/T 37385   YS/T 981.2   YS/T 981.3   YS/T 981.1   

Basic data

Standard ID YS/T 981.5-2014 (YS/T981.5-2014)
Description (Translated English) Methods for chemical analysis of high pure indium-Determination of thallium content. Rhodamine B spectrophotometric method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H17
Classification of International Standard 77.040.30
Word Count Estimation 6,690
Date of Issue 10/14/2014
Date of Implementation 4/1/2015
Regulation (derived from) People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This Standard specifies the method for the determination of high-purity indium thallium content. This section applies to the determination of 99.9999% purity Indium content of thallium. Measured in the range of 5 �� 10-5% ~ 3 �� 10-4%.

YS/T 981.5-2014: Methods for chemical analysis of high pure indium-Determination of thallium content. Rhodamine B spectrophotometric method


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Methods for chemical analysis of high pure indium-Determination of thallium content. Rhodamine B spectrophotometric method ICS 77.040.30 H17 People's Republic of China Nonferrous Metals Industry Standard Methods for chemical analysis of high purity indium Determination of thallium content Rhodamine B photometric method Issued on. 2014-10-14 2015-04-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 981 "Methods for chemical analysis of high purity indium" is divided into five sections. --- Part 1. magnesium, aluminum, silicon, sulfur, iron, nickel, copper, zinc, arsenic, silver, cadmium, tin, thallium, lead quality measurement resolution glow discharge mass Spectroscopy; --- Part 2. Inductively magnesium, aluminum, iron, nickel, copper, zinc, silver, cadmium, tin, lead coupled plasma mass spectrometry; --- Part 3. Determination of the amount of silicon silicon molybdenum blue spectrophotometric method; --- Part 4. Determination of tin content Phenylfluorone - bromo cetyl trimethylamine absorptiometry; --- Part 5. Determination of thallium content Rhodamine B photometric method. This section YS/T 981 Part 5. This section drafted in accordance with GB/T 1.1-2009 given rules. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting units. non-ferrous metals and electronic materials analysis and testing center. This section participated in the drafting unit. China Nonferrous Metals Industry Institute of Standards Metrology and Quality, Emei Semiconductor Material Research Institute, Lanzhou Jinchuan New Material Technology Co., Ltd. Guang Xi Debang. The main drafters of this section. Liu Li Chang love, heart Yang Su, Fan Xuehua, Qiu Ping, Tao. Methods for chemical analysis of high purity indium Determination of thallium content Rhodamine B photometric method

1 Scope

This section YS/T 981 specifies the method for determination of high-purity indium thallium content. This section applies to the determination of 99.9999% purity Indium thallium content. Determination range 5 × 10-5% ~ 3 × 10-4%.

2 Method summary

After the sample was decomposed by the hydrobromide, in 1.7mol/L hydrogen bromide and extracted with isopropyl ether thallium with rhodamine B color. At a wavelength of 550nm Measured at the absorbance. Indium less than 5mg, there is less than 3μg gallium, antimony do not interfere with the determination.

3 Reagents

3.1 Part of the water is deionized water, resistivity greater than 18MΩ · cm. 3.2 hydrobromic acid (8.5mol/L). used after distillation. 3.3 isopropyl ether, chemically pure. The extract was 3.4. hydrobromic acid, 1.7mol/L, the preparation of hydrobromic acid (3.2). 3.5 Rhodamine B solution (0.2g/L). Weigh 0.100g Rhodamine B dissolved 500mL1mol/L hydrochloric acid, and mix. 3.6 sulfosalicylic acid solution. 100g/L. 3.7 Thallium standard solution (A). Weigh 0.1300g thallium nitrate (spectroscopically pure) placed in 50mL beaker, add a small amount of water to dissolve, moved 1000mL volumetric flask, diluted with water to the mark. This solution containing thallium 1mg/mL. 3.8 Thallium standard solution (B). Take 2.00mL Thallium standard solution (3.7) and transferred to 100mL volumetric flask, dilute with water to the mark. This solution containing thallium 2μg/mL.

4 Instrument

Spectrophotometer.

5 Determination

5.1 Sample Weigh 1.00g specimen to the nearest 0.0001mg. 5.2 Determination of the number of Independently measured three times and averaged.

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