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YS/T 358.6-2011 English PDF

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YS/T 358.6-2011: Methods for chemical analysis of tantalite, columbite concentrate. Part 6: Determination of thorium oxide content. Inductively coupled plasma atomic emission spectrometry
Status: Valid
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YS/T 358.6-2011English159 Add to Cart 3 days [Need to translate] Methods for chemical analysis of tantalite, columbite concentrate. Part 6: Determination of thorium oxide content. Inductively coupled plasma atomic emission spectrometry Valid YS/T 358.6-2011

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Basic data

Standard ID YS/T 358.6-2011 (YS/T358.6-2011)
Description (Translated English) Methods for chemical analysis of tantalite, columbite concentrate. Part 6: Determination of thorium oxide content. Inductively coupled plasma atomic emission spectrometry
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard D43
Classification of International Standard 73.060
Word Count Estimation 6,636
Date of Issue 2011-12-20
Date of Implementation 2012-07-01
Older Standard (superseded by this standard) YS/T 358-1994
Regulation (derived from) ?MIIT Announcement 2011 No.43
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This standard specifies the tantalum iron, determination of niobium iron concentrates of thorium oxide content. This standard applies to tantalum iron, determination of niobium iron concentrates of thorium oxide content. Measuring range: 0. 001 to 0. 50%.

YS/T 358.6-2011: Methods for chemical analysis of tantalite, columbite concentrate. Part 6: Determination of thorium oxide content. Inductively coupled plasma atomic emission spectrometry


---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 tantalite, columbite concentrate. Part 6. Determination of thorium oxide content.Inductively coupled plasma emission emission ICS 73.060 D43 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 358-1994 Chemical analysis of tantalum iron and niobium iron concentrates Part 6. determination of the amount of thorium oxide Inductively Coupled Plasma Atomic Emission Spectrometry Methodsforchemicalanalysisoftantalite, columbiteconcentrate- Part 6. Determination ofthoriumoxidecontent- 2011-12-20 release 2012-07-01 Implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China

Foreword

YS/T 358 "tantalum iron, niobium iron concentrate chemical analysis method" includes 12 parts. - Part 1. Determination of tantalum and niobium content Paper color layer weight method; - Part 2. Determination of titanium dioxide - Amipyridine methane spectrophotometric method; - Part 3. Determination of silicon dioxide - Mo - Mo - blue spectrophotometric and gravimetric methods; - Part 4. Determination of tungsten trioxide - Thiocyanate spectrophotometric method; - Part 5. Determination of uranium content - Inductively coupled plasma - atomic emission spectrometry; - Part 6. Determination of thorium oxide - Inductively coupled plasma - atomic emission spectrometry; - Part 7. Determination of iron content - Inductively coupled plasma - atomic emission spectrometry; - Part 8. Determination of iron content - Potassium dichromate titration; - Part 9. Determination of antimony content - Inductively coupled plasma - atomic emission spectrometry; - Part 10. Determination of tin content Potassium iodate titration; - Part 11. Determination of manganese content - Atomic absorption spectroscopy; - Part 12. Determination of wet water content - Weight method. This section is part 6 of YS/T 358. This part of the replacement of YS/T 358-1994 "tantalum iron, niobium iron concentrate chemical analysis method" (formerly YB874-76) Section VII "thorium dioxide Amount of determination (arsenazo III colorimetric method) ". The main changes in this part compared with Part 7 of the YS/T 358-1994 are as follows. Inductively Coupled Plasma Emission Spectroscopy Instead of Arsenazo Ⅲ Colorimetry. This part is the national nonferrous Metals Standardization Technical Committee (SAC/TC243). This part of the drafting unit. Ganzhou Nonferrous Metallurgy Research Institute, Jiujiang tantalum and niobium limited liability company, Conghua tantalum and niobium smelter. This part of the main drafters. Pan Jianzhong, Liu Hong, Song Jinhua, Huang Shuang, Wang Jing, Jiang Tengrong. This part of the previous version of the standard to replace the release of the situation. YB874-76, YS/T 358-1994. Chemical analysis of tantalum iron and niobium iron concentrates Part 6. determination of the amount of thorium oxide Inductively Coupled Plasma Atomic Emission Spectrometry

1 Scope

This method specifies the determination method of thorium oxide content in tantalum iron and niobium iron concentrate. This method is applicable to the determination of thorium oxide in tantalum iron and niobium iron concentrate. The measurement range is 0.001% ~ 0.50%.

2 method summary

The sample was decomposed with sulfuric acid-ammonium sulfate. In the dilute acid medium, argon plasma was used as the ionization source, and the inductively coupled plasma was directly applied Determination of radio spectrum.

3 reagent

3.1 ammonium sulfate. 3.2 Sulfuric acid (ρ1.84g/mL). 3.3 Hydrochloric acid (ρ1.19g/mL). 3.4 hydrochloric acid lotion (1 49). 3.5 thorium oxide standard storage solution. Weigh 0.1000g thorium dioxide [w (ThO2) ≥ 99.95%, dried at 110 ℃] in 250mL burn Cup, add 10mL hydrochloric acid (3.3) and 0.5mL hydrofluoric acid (ρ1.14g/mL), dissolve by heating, add 2mL perchloric acid (ρ1.67g/mL) Evaporated to white smoke until the wet salt, cooling, with 5mL hydrochloric acid (1 1) dissolved and hydrochloric acid (19) fixed in 1000mL volumetric flask, Mix, this solution 1mL equivalent to 0.1mg thorium dioxide. 3.6 argon w (Ar) ≥99.99%.

4 instruments

Inductively Coupled Plasma Atomic Emission Spectrometer. Resolution < 0.006nm (at.200nm).

5 samples

5.1 Specimen size less than 0.074mm. 5.2 samples in 105 ℃ ~ 110 ℃ pre-bake 2h, placed in a dryer to cool to room temperature.

6 Analysis steps

6.1 samples Weigh 0.10g of sample (5), accurate to 0.0001g.

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