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YS/T 360.1-2011: Methods of chemical analysis for ilmenite concentrate. Part 1: Determination of titanium dioxide content. Ferric ammonium sulfate titration
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
YS/T 360.1-2011	English	189	Add to Cart	3 days [Need to translate]	Methods of chemical analysis for ilmenite concentrate. Part 1: Determination of titanium dioxide content. Ferric ammonium sulfate titration
YS/T 360-1994	English	559	Add to Cart	4 days [Need to translate]	(Ilmenite (placer) concentrates chemical analysis)

YS/T 360.1-2011: Methods of chemical analysis for ilmenite concentrate. Part 1: Determination of titanium dioxide content. Ferric ammonium sulfate titration

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Methods of chemical analysis for ilmenite concentrate.Part 1. Determination of titanium dioxide content.Ferric ammonium sulfate titration ICS 77.120.90 H64 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 360-1994 Chemical analysis of ilmenite concentrates Part 1. determination of titanium dioxide content Ammonium Sulfate Titration Part 1. Determinationoftitaniumdioxidecontent- 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 360 "ilmenite concentrate chemical analysis method" is divided into six parts. - Part 1. Determination of titanium dioxide - Ammonium sulfate titration; - Part 2. Determination of total iron content - Potassium dichromate titration; - Part 3. Determination of the amount of ferrous oxide - Potassium dichromate titration; - Part 4. Determination of the amount of alumina - EDTA titration; - Part 5. Determination of silicon dioxide - Mo - Mo - blue spectrophotometric method; Part 6. Determination of calcium oxide, magnesium oxide, and phosphorus content - Plasma emission spectrometric method. This part is part 1 of YS/T 360. This part replaces the second part of YS/T 360-1994 "Chemical Analysis of Ilmenite (Concentrate) Concentrate" (formerly YB878-76) Determination of Titanium Dioxide ". Compared with YS/T 360-1994, the main changes are as follows. - the provisions of the determination of the range. 30% to 70%; - the formula used in international units of measurement; --- increase the repeatability limit. This standard is owned by the National Committee for the Standardization of Nonferrous Metals (SAC/TC243). The drafting unit of this standard. Zunyi Titanium Industry Co., Ltd., Jinchuan Group Co., Ltd., Yunnan Xinli Nonferrous Metals Co., Ltd., Fushun Titanium Industry Co., Ltd., China Nonferrous Metals Industry Standard Measurement Quality Institute. The main drafters of this standard. Zhang Jinjie, Yang Zaijiang, Luo Lin, Yu Shengjie, Zhang Jian, Zhuang Jun, Zhang Jiangfeng. This part of the previous version of the standard to replace the release of the situation. --- YB878-1976; --- YS/T 360-1994. Chemical analysis of ilmenite concentrates Part 1. determination of titanium dioxide content Ammonium Sulfate Titration

1 Scope

This part of YS/T 360 specifies the amount of titanium dioxide in ilmenite concentrates. This part applies to the determination of titanium dioxide in ilmenite concentrates. The measurement range is 30.00% ~ 70.00%.

2 method summary

The sample was melted with potassium pyrophosphate and acid leached. In an appropriate sulfuric acid and hydrochloric acid solution, titanium is aluminum foil under conditions of isolated air (Ⅳ) reduced to (Ⅲ), ammonium thiocyanate solution as an indicator, with ammonium titanate standard titration solution titrated to a stable orange-red as the end.

3 reagent

3.1 Potassium pyrophosphate. 3.2 Titanium dioxide (≥99.99%). Spectrum pure. 3.3 Sodium peroxide. 3.4 aluminum foil (mass fraction of not less than 99.5%). 3.5 hydrochloric acid (ρ about 1.19 g/mL). 3.6 Hydrochloric acid (1 1). 3.7 Sulfuric acid (1 1). 3.8 Sulfuric acid (5 95). 3.9 sodium carbonate solution (10g/L). 3.10 Saturated solution of sodium bicarbonate. 3.11 Ammonium thiocyanate solution (400 g/L). 3.12 standard titration solution of ammonium ferric sulfate 3.12.1 Preparation. Weigh 24g ammonium ferric sulfate [NH4Fe (SO4) 2 · 12H2O], placed in a 1000mL beaker, add 500mL of water, Slowly poured into 100mL sulfuric acid (3.7), dissolved by heating, remove, drop 0.5% potassium permanganate solution to show reddish, heated to boil decomposition Amount of potassium permanganate. Cooled to room temperature, into the 1000mL volumetric flask, diluted with water to the mark, mix. 3.12.2 Calibration. Weigh 0.1000 g of titanium dioxide (3.2) 3 parts, placed in 3 porcelain crucible. The following according to 5.4.1 ~ 5.4.2 and 5.4.5 to 5.4.6. If the difference is more than 0.10mL, should be re-calibration, and with the blank test. Calculate the concentration of ammonium ferric sulfate standard titration solution according to formula (1) c. c = m79.88 (V-V0) x 1000 (1) Where. c - Concentration of ferric sulfate standard titration solution in mol/liter (mol/L); m --- the amount of titanium dioxide (3.3), in grams (g); 79.88 --- molar mass of titanium dioxide in grams per mole (g/mol); ...