Download or read book YS T 575 1 2007 Translated English of Chinese Standard YST 575 1 2007 YS T575 1 2007 YST575 1 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-12-07 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination method of aluminium oxide content in bauxite. This Part is applicable to the determination of aluminium oxide content in bauxite. The determination range is 40%~80%.

Download or read book YS T 575 4 2007 Translated English of Chinese Standard YST 575 4 2007 YS T575 4 2007 YST575 4 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-12-07 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination method of iron oxide content in bauxite. This Part is applicable to the determination of iron oxide content in bauxite. The determination range is more than 5.00%.

Download or read book YS T 575 6 2007 Translated English of Chinese Standard YST 575 6 2007 YS T575 6 2007 YST575 6 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-02-09 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination of titanium dioxide content in bauxite. This Part is applicable to the determination of titanium dioxide content in bauxite; the determination range is 0.50%~8.00%.

Download or read book YS T 575 5 2007 Translated English of Chinese Standard YST 575 5 2007 YS T575 5 2007 YST575 5 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-02-09 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination of ferric oxide content in the bauxite. This Part is applicable to the determination of ferric oxide content in the bauxite; the determination range: 5.00%.

Download or read book YS T 575 2 2007 Translated English of Chinese Standard YST 575 2 2007 YS T575 2 2007 YST575 2 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-12-07 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination method of silicon dioxide content in bauxite. This Part is applicable to the determination of silicon dioxide content in bauxite. The determination range is more than 15%.

Download or read book YS T 575 19 2007 Translated English of Chinese Standard YST 575 19 2007 YS T575 19 2007 YST575 19 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2017-02-03 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part specifies the determination method for the loss on ignition of bauxite. This part applies to determination of the loss on ignition in the bauxite ore, AND the determination range is 10% ~ 30%.

Download or read book YS T 575 21 2007 Translated English of Chinese Standard YST 575 21 2007 YS T575 21 2007 YST575 21 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-08-02 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination method of organic carbon content in bauxite. This Part applies to the determination of organic carbon content in bauxite. Determination range: 0.01% ~ 1.00%.

Download or read book YS T 575 17 2007 Translated English of Chinese Standard YST 575 17 2007 YS T575 17 2007 YST575 17 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2016-07-13 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination method of sulfur content in bauxite. This Part applies to the determination of sulfur content in bauxite. The determination range: less than or equal to 3.00%.

Download or read book YS T 575 3 2007 Translated English of Chinese Standard YST 575 3 2007 YS T575 3 2007 YST575 3 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-02-09 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination of silicon dioxide content in bauxite. This Part is applicable to the determination of silicon dioxide content in bauxite; the measurement range: 15.00%.

Download or read book YS T 575 23 2009 Translated English of Chinese Standard YST 575 23 2009 YS T575 23 2009 YST575 23 2009 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2017-02-03 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part specifies the methods for the determination of aluminum oxide, silica, total iron (expressed by Fe2O3), titanium dioxide, potassium oxide, sodium oxide, calcium oxide, magnesium oxide, phosphorus pentoxide, manganese oxide, sulfur, vanadium, gallium and zinc, and the like, in the aluminum ores.

Download or read book YS T 575 16 2007 Translated English of Chinese Standard YST575 16 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-03-06 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for the determination of phosphorus pentoxide content in bauxite ores. This Part applies to the determination of phosphorus pentoxide content in bauxite ore. The determination range is 0.01% ~ 5.00%.

Download or read book YS T 575 24 2009 Translated English of Chinese Standard YST 575 24 2009 YS T575 24 2009 YST575 24 2009 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-08-02 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination of carbon and sulfur content in aluminum ores. This Part is applicable to the determination of carbon and sulfur content in aluminum ores. The range of determination (mass fraction) is: for carbon, 0.02% ~ 10.00%; for sulfur, 0.020% ~ 12.00%.

Download or read book YS T 252 4 2007 Translated English of Chinese Standard YS T 252 4 2007 YST252 4 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-04 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the method for determination of copper content in high nickel matte. This standard is applicable to the determination of copper content in high nickel matte. Measuring range: 6% ~ 55%. 2 Method summary The sample is decomposed with hydrochloric acid and nitric acid-potassium chlorate saturated solution. The ammonium bifluoride is used to mask the iron and the solution is controlled at pH3.5 ~ pH4. Potassium iodide is added, to cause the copper to precipitate copper iodide and precipitate an equal amount of iodine. Use the starch solution as an indicator; use sodium thiosulfate standard titration solution to indirectly determine the amount of copper. 3 Reagents 3.1 Ammonium bifluoride. 3.2 Potassium iodide. 3.3 Ammonia water (¦Ñ0.90 g/mL). 3.4 Hydrochloric acid (¦Ñ1.19 g/mL). 3.5 Nitric acid (¦Ñ1.42 g/mL). 3.6 Nitric acid (1 + 1). 3.7 Sulfuric acid (1 + 1). 3.8 Urea saturated solution. 3.9 Potassium sulfate solution (100 g/L). YS/T 252.4-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 9 3.10 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in nitric acid (3.5) until saturated. 3.11 Starch solution (5 g/L). 3.12 Copper standard solution: Accurately weigh 1.0000 g of metallic copper (mass fraction of copper ¡Ý 99.95%). Place it in a 400 mL beaker. Add 20 mL of nitric acid (3.6). Dissolve at low temperature and evaporate to a viscous state. Cool it. Add 5 mL of sulfuric acid (3.7). Heat until a lot of white smoke comes out. Cool it slightly. Add water to boil to dissolve the salts. Cool to room temperature. Pipette it into a 1000 mL volumetric flask. Use water to make the volume reach to the mark. 1 mL of this solution contains 1.0 mg of co

Download or read book YS T 575 19 2021 Translated English of Chinese Standard YS T 575 19 2021 YST575 19 2021 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-08-29 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Document specifies the method for determining the loss on ignition in bauxite ores. This Document is applicable to the determination of the loss on ignition in bauxite ores, with a determination range of 10.00% ~ 30.00%. Other types of aluminosilicates such as clay and kaolin can be used for reference.

Download or read book YS T 252 3 2007 Translated English of Chinese Standard YS T 252 3 2007 YST252 3 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-04 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of cobalt content in high nickel matte. This Part is applicable to the determination of cobalt content in high-nickel matte. Measuring range: 0.1% ~ 2%. 2 Method summary Decompose the sample with hydrochloric acid, nitric acid-potassium chlorate saturated solution. Use air-acetylene flame in hydrochloric acid (2 + 98) medium, to measure the absorbance at the wavelength of 240.7 nm of atomic absorption spectrometer, after subtracting the background. Calculate the cobalt content according to the standard curve method. 3 Reagents 3.1 Hydrochloric acid (¦Ñ1.19 g/mL). 3.2 Nitric acid (¦Ñ1.42 g/mL). 3.3 Nitric acid (1 + 1). 3.4 Ammonia (1 + 3). 3.5 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in nitric acid (3.2) until saturated. 3.6 Cobalt standard storage solution: Weigh 1.0000 g of metallic cobalt (mass fraction of cobalt ¡Ý 99.95%). Slowly add 20 mL of nitric acid (3.3) into a 400 mL beaker. Cover with a watch glass. Heat at low temperature to completely dissolve. Remove it. Use water to rinse the watch glass and cup wall. Heat and boil to remove nitrogen oxides. Remove it. Cool to room temperature. Transfer it into a 1000 mL volumetric flask. Use water to wash the watch glass and cup wall. Combine the washing liquid into the volumetric flask. Use water to make the volume reach to the mark. 1 mL of this solution YS/T 252.3-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 8 contains 1 mg of cobalt. 3.7 Cobalt standard solution: Pipette 20.00 mL of cobalt stand

Download or read book YS T 252 5 2007 Translated English of Chinese Standard YS T 252 5 2007 YST252 5 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-05 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of sulfur content in high nickel matte. This Part is applicable to the determination of sulfur content in high nickel matte. Measuring range: 15% ~ 25%. 2 Method summary The sample uses copper wire as flux and burns in air flow at 1250 ¡ãC ~ 1300 ¡ãC, to convert sulfur into sulfur dioxide. It is absorbed and oxidized into sulfuric acid by hydrogen peroxide. Methyl red-methylene blue solution is used as a mixed indicator. Use sodium hydroxide standard titration solution to make titration, until the solution changes from purple to bright green, which is taken as the end point. 3 Reagents 3.1 Copper wire (mass fraction of copper ¡Ý 99.95%, diameter 0.25 mm ~ 0.5 mm). 3.2 Acid absorption solution (potassium dichromate-sulfuric acid solution): Heat and dissolve 5 g of potassium dichromate with a small amount of water. After cooling, add 100 mL of sulfuric acid. 3.3 Desiccant: Anhydrous calcium chloride. 3.4 Alkali absorption solution: Sodium hydroxide (50 g/L). 3.5 Phenolphthalein indicator (10 g/L), ethanol solution. 3.6 Methyl red-methylene blue mixed indicator: Weigh 0.3 g of methyl red and 0.25 g of methylene blue. Dissolve in 500 mL of absolute ethanol. 3.7 Hydrogen peroxide absorption solution (pre

Download or read book YS T 252 1 2007 Translated English of Chinese Standard YS T 252 1 2007 YST252 1 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-03 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of nickel content in high nickel matte. This Part is applicable to the determination of nickel content in high-nickel matte. Measuring range: 20% ~ 80%. 2 Method summary The sample is decomposed with hydrochloric acid or nitric acid-potassium chlorate saturated solution. In the ammonia medium, nickel and diacetyl oxime form a red nickel diacetyl oxime precipitate, which is separated from other impurity elements. The precipitate is filtered, washed, and dried to constant weight; the amount of nickel is calculated. The amount of nickel in the mixed filtrate is extracted with chloroform under pH6.5, separated from other impurities, measured using diacetyl oxime spectrophotometry and then corrected. 3 Reagents 3.1 Hydrochloric acid (¦Ñ1.19 g/mL). 3.2 Hydrochloric acid (1 + 1). 3.3 Hydrochloric acid (1 + 24). 3.4 Nitric acid (¦Ñ1.42 g/mL). 3.5 Nitric acid (1 + 1). 3.6 Sulfuric acid (¦Ñ1.83 g/mL). 3.7 Ammonia (1 + 1). 3.8 Chloroform. 3.9 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in YS/T 252.1-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 10 nitric acid (3.4) until saturated. 3.10 Potassium sodium tartrate solution (200 g/L), filter it before use. 3.11 Ammonium acetate solution (200 g/L), filter it before use. 3.12 Sodium thiosulfate solution (200 g/L), filter it before use. 3.13 Dimethylglyoxime ethanol solution (10 g/L), filter it before use. 3.14 Dimethylglyoxime-sodium hydroxide solution (10 g/L): Dissolve 15 g of sodium hydroxide in 100 mL of water. After cooling to room temperature, dissolve 1 g of dimethylglyoxime in the solution. Mix well. 3.15 Ferric persulfate solution (50 g/L). 3.16 Nickel standard stock solution: Weigh 0.1000