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YS/T 360.3-2011 English PDF

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YS/T 360.3-2011: Methods of chemical analysis for ilinenite concentrate. Part 3: Determination of ferrous oxide content. Potassium dichromate titrimetric method
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YS/T 360.3-2011	English	159	Add to Cart	3 days [Need to translate]	Methods of chemical analysis for ilinenite concentrate. Part 3: Determination of ferrous oxide content. Potassium dichromate titrimetric method	Valid	YS/T 360.3-2011

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Standard similar to YS/T 360.3-2011

GB/T 2524 GB/T 3620.1 YS/T 298 YS/T 360.2 YS/T 360.4 YS/T 360.1

Basic data

Standard ID	YS/T 360.3-2011 (YS/T360.3-2011)
Description (Translated English)	Methods of chemical analysis for ilinenite concentrate. Part 3: Determination of ferrous oxide content. Potassium dichromate titrimetric method
Sector / Industry	Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H64
Classification of International Standard	77.120.90
Word Count Estimation	6,621
Date of Issue	2011-12-20
Date of Implementation	2012-07-01
Older Standard (superseded by this standard)	YS/T 360-1994
Regulation (derived from)	?MIIT Announcement 2011 No.43
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard specifies the method for measuring the amount of ferrous oxide ilmenite concentrates. This standard applies to the determination of the amount of ferrous oxide ilmenite concentrates. Measuring range: 1. 00%-40. 00%. This standard applies to chromium, vanadium content is not more than 3mg, molybdenum, tungsten content of not more than 2mg, tin, copper content is not more than the amount measured in a sample of 1mg of ferrous oxide.

YS/T 360.3-2011: Methods of chemical analysis for ilinenite concentrate. Part 3: Determination of ferrous oxide content. Potassium dichromate titrimetric 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 of chemical analysis for ilinenite concentrate.Part 3. Determination of ferrous oxide content.Potassium dichromate titrimetric method 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 3. determination of the amount of ferrous oxide Potassium dichromate titration Part 3. Determinationofferrousoxidecontent- 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 section is part 3 of YS/T 360. This part replaces the fifth part of YS/T 360-1994 "Chemical analysis of ilmenite (concentrates) concentrates" (formerly YB878-76) Determination of ferrous iron ". Compared with YS/T 360-1994, the main changes are as follows. - specifies the measurement range of 1% to 40%; --- adjust the amount of 0.1g; - the formula used in international units of measurement; --- reaffirm the allowable difference; --- 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. Yang Zaijiang, Liu Ping, Qu Xinwei, 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 3. determination of the amount of ferrous oxide Potassium dichromate titration

1 Scope

This part of YS/T 360 specifies the method for the determination of the amount of ferrous oxide in ilmenite concentrates. This part applies to the determination of the amount of ferrous oxide in ilmenite concentrate. The measurement range is 1.00% to 40.00%. This part applies to chromium, vanadium is not more than 3mg, molybdenum, tungsten content of not more than 2mg, tin, copper is not greater than 1mg in the sample oxide Determination of iron content.

2 method summary

The samples were dissolved with hydrochloric acid and sodium fluoride under the condition of air separation. Under the condition of mixed acid of phosphoric acid and sulfuric acid, sodium benzodisulfonate As the indicator, with potassium dichromate standard solution titration to a stable purple for the end.

3 reagent

3.1 Sodium fluoride. 3.2 Sodium bicarbonate. 3.3 Hydrochloric acid (ρ approx. 1.19 g/mL). 3.4 saturated solution of sodium bicarbonate. 3.5 Sulfur-phosphorus mixed acid solution. 150 mL of sulfuric acid (ρ about 1.84 g/mL) was slowly poured into 700 mL of water with stirring and cooled to room Warm, add 150mL phosphoric acid (ρ about 1.84g/mL) mix. 3.6 solution of diphenylamine sulfonate (5g/L), stored in a brown bottle. 3.7 potassium dichromate standard titration solution (c1/6K2Cr2O7 = 0.03000mol/L). Weigh 1.4709g in advance at 150 ℃ baking 2h heavy chromium Acid potassium reference reagent, dissolved in the amount of water, into the 1000mL volumetric flask, diluted with water to the mark, mix.

4 sample

4.1 The sample size should not be greater than 90μm. 4.2 samples in advance at 105 ℃ ~ 110 ℃ baking 2h, placed in a dryer, cooled to room temperature.

5 Analysis steps

5.1 Sample Weigh 0.100g sample, accurate to 0.0001g.

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