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YS/T 1050.6-2015 (YST 1050.6-2015)

YS/T 1050.6-2015_English: PDF (YST1050.6-2015)
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YS/T 1050.6-2015English139 Add to Cart Days<=3 Methods for chemical analysis of lead antimony concentrates - Part 6: Determination of iron content - Cerium sulfate titration method YS/T 1050.6-2015 Valid YS/T 1050.6-2015
 

BASIC DATA
Standard ID YS/T 1050.6-2015 (YS/T1050.6-2015)
Description (Translated English) Methods for chemical analysis of lead antimony concentrates. Part 6: Determination of iron content. Cerium sulfate titration method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard D42
Classification of International Standard 73.06
Word Count Estimation 6,642
Date of Issue 2015-04-30
Date of Implementation 2015-10-01
Drafting Organization Guangxi Zhuang Autonomous Region metallurgical products Quality Supervision, Inspection Station; Guizhou Province Analysis and Testing Institute; Guangxi Zhuang Autonomous Region Analysis and Testing Center; Liuzhou one hundred Ren special advanced materials Limited; Guangxi China Tin Group Co., Ltd.
Administrative Organization National Non-Ferrous Metals Standardization Technical Committee (SAC/TC 243)
Regulation (derived from) Ministry of Industry and Information Technology Announcement (2015 No. 28)
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This Standard specifies the method for determination of lead-antimony concentrate iron content. This Standard is applicable to lead-antimony concentrates Determination of iron content measurement range (mass fraction) of 5.00% to 20.00%.

YS/T 1050.6-2015
(Lead-antimony concentrates - Part 6. Determination of iron content cerium sulfate titration)
ICS 73.060
D42
People's Republic of China Nonferrous Metals Industry Standard
Methods for chemical analysis of lead-antimony concentrate
Part 6. Determination of iron content
Cerium sulfate titration
Part 6. Determinationofironcontent-
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 1050-2015 "Methods for chemical analysis of lead-antimony concentrate" is divided into the following nine sections.
--- Part 1. Determination of lead content Na2EDTA titration;
--- Part 2. Determination of antimony content cerium sulfate titration;
--- Part 3. Determination of arsenic content potassium bromate titration;
--- Part 4. Determination of zinc contents Na2EDTA titration;
--- Part 5. Determination of sulfur content - Gravimetric method;
--- Part 6. Determination of iron content cerium sulfate titration;
--- Part 7. Determination of the amount of bismuth and copper - Flame atomic absorption spectrometry amount;
--- Part 8. gold and silver content determination fire assay;
--- Part 9. Determination of the amount of silver by flame atomic absorption spectrometry.
Part is divided into 6 sections.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Guangxi Metallurgical Product Quality Supervision and Inspection Station.
Drafting this Part. Analysis and Testing Institute of Guizhou Province.
Participated in the drafting of this section. Analysis and Testing Center of Guangxi, Liuzhou one hundred tough special Advanced Materials Co., Ltd., Guangxi, China
Tin Group Co., Ltd.
The main drafters of this section. Li Jiahua, Zhang Ying, Ye Kaifu, Lin Dongdong, Liu Yingping, Huang Xusheng, Zhang Li, Huangzhao Min, Wei Meng, Fourier,
Zheng Jingjing, Lvmin Li.
Methods for chemical analysis of lead-antimony concentrate
Part 6. Determination of iron content
Cerium sulfate titration
1 Scope
YS/T 1050 This section specifies the method for determination of lead-antimony concentrate iron content.
This section applies to lead-antimony concentrates Determination of iron content measurement range (mass fraction) of 5.00% to 20.00%.
2 Method summary
Sample with sulfuric acid, nitric acid dissolved, hydrobromic remove arsenic, antimony, iron precipitation (separation of copper), the precipitate was dissolved in hydrochloric acid in the ammonia medium, tungsten
Sodium as the indicator, with titanium trichloride to restore high iron to a lower valence with sulfuric acid excess of titanium oxide, cerium oxide, parathion mixed acid was added to diphenyl
Amine sulfonate as indicator titration with cerium sulfate standard solution to a stable purple as the end point.
3 Reagents
Unless otherwise indicated, this part of the reagents were analytical reagent, the water for the two water.
3.1 iron (mass fraction of iron ≥99.95%).
3.2 sodium fluoride.
3.3 ammonium chloride.
3.4 hydrochloric acid (ρ = 1.19g/mL).
3.5 phosphoric acid (ρ = 1.69g/mL).
3.6 sulfate (ρ = 1.84g/mL).
3.7 nitric acid (ρ = 1.42g/mL).
3.8 hydrobromide (ρ = 1.49g/mL).
3.9 perchloric acid (ρ = 1.67g/mL).
3.10 aqueous ammonia (ρ = 0.90g/mL).
3.11 hydrochloric acid (11).
3.12 hydrochloric acid (199).
3.13 ammonia (595).
3.14 sodium tungstate solution (50g/L). Weigh 5g of sodium tungstate dissolved in an appropriate amount of water, phosphoric acid was added 10mL (3.5), diluted with water to
100mL, and mix.
3.15 titanium trichloride solution. Take 25mL titanium trichloride (15% to 20%), was added 25mL of hydrochloric acid (3.4), 50mL water, and mix with a time of
Formulated.
3.16 - sulfuric acid solution of phosphoric acid. sulfuric acid to 150mL (3.6) was added slowly under constant stirring to 500mL of water was added after cooling
150mL phosphoric acid (3.5), diluted with water to 1000mL, and mix.