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YS/T 575.9-2007 English PDF

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YS/T 575.9-2007: Methods for chemical analysis of bauxite. Part 9: Determination of potassium oxide and sodium oxide content. Flame atomic absorption spectorphotometric method
Status: Valid

YS/T 575.9: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 575.9-2007English199 Add to Cart 3 days [Need to translate] Methods for chemical analysis of bauxite. Part 9: Determination of potassium oxide and sodium oxide content. Flame atomic absorption spectorphotometric method Valid YS/T 575.9-2007
YS/T 575.9-2006English279 Add to Cart 3 days [Need to translate] Methods for chemical analysis of bauxite. Determination of potassium oxide and sodium oxide content. Flame atomic absorption spectrophotometric method Obsolete YS/T 575.9-2006

PDF similar to YS/T 575.9-2007


Standard similar to YS/T 575.9-2007

GB/T 8719   YB/T 042   YS/T 575.6   YS/T 575.27   YS/T 575.7   YS/T 575.14   

Basic data

Standard ID YS/T 575.9-2007 (YS/T575.9-2007)
Description (Translated English) Methods for chemical analysis of bauxite. Part 9: Determination of potassium oxide and sodium oxide content. Flame atomic absorption spectorphotometric method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard Q52;D42
Classification of International Standard 71.100.10
Word Count Estimation 6,661
Date of Issue 2007-11-14
Date of Implementation 2008-05-01
Older Standard (superseded by this standard) YS/T 575.9-2006
Regulation (derived from) NDRC Notice No. 77 of 2007
Issuing agency(ies) National Development and Reform Commission
Summary This standard specifies the bauxite in potassium oxide and sodium content determination. This standard applies to bauxite in potassium, sodium oxide content. Measuring range: 0. 05% to 3. 00%.

YS/T 575.9-2007: Methods for chemical analysis of bauxite. Part 9: Determination of potassium oxide and sodium oxide content. Flame atomic absorption spectorphotometric method


---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 bauxite.Part 9. Determination of potassium oxide and sodium oxide content.Flame atomic absorption spectorphotometric method ICS 71.100.10 Q52 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 575.9-2006 Methods for chemical analysis of bauxite - Part 9. Determination of potassium oxide and sodium oxide Flame Atomic Absorption Spectrometry Posted 2007-11-14 2008-05-01 implementation National Development and Reform Commission issued

Foreword

YS/T 575-2007 "chemical analysis of bauxite -" Is the YS/T 575-2006 (formerly GB/T 3257-1999) amendments A total of 24 parts. --- Part 1. aluminum oxide content - EDTA titration --- Part 2. silica content - Gravimetric - molybdenum blue spectrophotometry --- Part 3. Determination of silica content molybdenum blue photometric --- Part 4. iron oxide content - Potassium dichromate titration --- Part 5. Determination of iron oxide content phenanthroline spectrophotometry --- Part 6. Determination of titanium dioxide content di Zhao DAM spectrophotometry --- Part 7. calcium oxide content - Flame Atomic Absorption Spectrometry --- Part 8. magnesium oxide content - Flame Atomic Absorption Spectrometry --- Part 9. potassium hydroxide, sodium oxide content - Flame Atomic Absorption Spectrometry --- Part 10. Determination of manganese oxide content by flame atomic absorption spectrometry --- Part 11. chromium oxide content - Flame Atomic Absorption Spectrometry --- Part 12. Determination of vanadium pentoxide content of benzoyl phenylhydroxylamine photometric method --- Part 13. Determination of zinc content by flame atomic absorption spectrometry --- Part 14. Determination of total rare earth oxide Tribromoarsenazo spectrophotometry --- Part 15. Determination of gallium oxide content of rhodamine B extraction spectrophotometry --- Part 16. Determination of phosphorus pentoxide molybdenum blue photometric --- Part 17. Determination of sulfur content - Combustion - iodometric method --- Part 18. Determination of total carbon content - Combustion - non-aqueous titration --- Part 19. Determination of burning weight reduction method --- Part 20. pre-dried sample preparation --- Part 21. Determination of organic carbon titration --- Part 22. Analysis of samples moisture intrudes content - Gravimetric method --- Part 23. Determination of the chemical composition of the X-ray fluorescence spectrometry --- Part 24. Determination of carbon and sulfur content infrared absorption method Part is divided into 9 parts. The partial replacement of YS/T 575.9-2006 (formerly GB/T 3257.9-1999). This section is amended to YS/T 575.9-2006, compared with YS/T 575.9-2006, the main changes are as follows. --- The drying temperature of the sample unified 110 ℃ ± 5 ℃; --- Increased precision. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This part of the Aluminum Corporation of China Zhengzhou Research Institute is responsible for drafting. This section drafted by the Aluminum Corporation of China Shandong Branch. The main drafters of this section. Qi Yanli. The non-ferrous metal part by the National Standardization Technical Committee responsible for the interpretation. This part of the standard replaces the previous editions are. --- YS/T 575.9-2006 (formerly GB/T 3257.9-1999). Methods for chemical analysis of bauxite - Part 9. Determination of potassium oxide and sodium oxide Flame Atomic Absorption Spectrometry

1 Scope

This section specifies the determination method of bauxite in potassium oxide, sodium content. This section applies to bauxite in potassium hydroxide, sodium oxide content determination. Measuring range. 0.05 to 3.00%.

2 Method summary

Sample with lithium metaborate melting decomposition, leaching in nitric acid medium by atomic absorption spectrophotometer and the wavelength 766.5nm 589.0nm at the air - acetylene flame were measured hydroxide, sodium oxide. Measuring a large number of lithium metaborate, aluminum hydroxide interference set. Added to the standard solution in an amount of aluminum and lithium metaborate eliminate the interference.

3 Reagents

3.1 lithium metaborate Dehydration. first containing lithium metaborate (LiBO2 · 8H2O) magnetic dish into the oven and gradually heated up to 170 ℃, bake 2h, then Muffle furnace at 650 ℃ burning 2h, after the cold study, stored in a grinding jar. 3.2 nitric acid (1 + 1). Hydrochloride 3.3 (1 + 3). 3.4 lithium metaborate solution. 7.8000g lithium metaborate (LiBO2 · 8H2O) in 50mL of water was heated and melted, add 20mL of nitric acid (3.2), cooled to room temperature and transferred to 100mL volumetric flask, dilute with water to volume, and mix. 3.5 aluminum solution. 0.7938g metallic aluminum (99.99%) was heated and melted in 50mL of hydrochloric acid (3.3), cooling to room temperature, transferred to 250mL Volumetric flask, dilute with water to volume, and mix. 3.6 hydroxide standard solution. Weigh 0.7915g previously been calcined at 450 ℃ 1.5h potassium chloride (reference reagent) was dissolved in 100mL water The transferred 500mL volumetric flask. Diluted with water to the mark, shake well into dry plastic bottles. This solution containing 1.00mg per ml of oxygen Potassium. 3.7 sodium hydroxide standard solution. Weigh 0.4715g previously been calcined at 450 ℃ 1.5h of sodium chloride (reference reagent) was dissolved in 100mL water The transferred 500mL volumetric flask. Diluted with water to the mark, shake well into dry plastic bottles. This solution containing 0.50mg per ml of oxygen Sodium. 3.8 potassium - sodium oxide mixed standard solution. dispensing 10.0mL hydroxide standard solution (3.6), 10.0mL standard solution of sodium hydroxide (3.7), placed in 500mL volumetric flask, dilute with water to volume, and mix. This solution containing 20μg per ml of sodium hydroxide and 10μg oxide. Before existing service.

4 Instrument

Atomic absorption spectrophotometer, with 0.5mm × 100mm single slit burners, potassium, sodium hollow cathode lamp. In optimum working strip Member, the following indicators can be achieved by atomic absorption spectrophotometer can be used. Low sensitivity. absorbance of the highest concentration of the standard arithmetic standard solution is not less than 0.30. Linear calibration curve. arithmetic concentration of the standard, the difference absorptiometry of the two highest and the second highest concentration of the standard, should not be less than most 0.7-fold lower concentration of the standard solution absorbance and zero concentration difference.

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