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Chemical analysis methods of aluminum hardeners. Part 13: Determinaiton of vanadium content. Ferrous ammonium sulfate titrimetric method
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Basic data
| Standard ID | YS/T 807.13-2012 (YS/T807.13-2012) |
| Description (Translated English) | Chemical analysis methods of aluminum hardeners. Part 13: Determinaiton of vanadium content. Ferrous ammonium sulfate titrimetric method |
| Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) |
| Classification of Chinese Standard | H12 |
| Classification of International Standard | 77.120.10 |
| Word Count Estimation | 6,620 |
| Regulation (derived from) | Ministry of Industry and Information Technology Bulletin No. 55 of 2012; industry standard filing Notice 2013 No. 1 (Total No. 157); |
| Issuing agency(ies) | Ministry of Industry and Information Technology |
| Summary | This standard specifies the aluminum alloy in the determination of vanadium content. This standard applies to the aluminum alloy of vanadium content. Determination range of from 2. 00% to 12. 00%. |
YS/T 807.13-2012: Chemical analysis methods of aluminum hardeners. Part 13: Determinaiton of vanadium content. Ferrous ammonium sulfate 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.
Chemical analysis methods of aluminum hardeners.Part 13. Determinaiton of vanadium content.Ferrous ammonium sulfate titrimetric method
ICS 77.120.10
H12
People's Republic of China Nonferrous Metals Industry Standard
Intermediate aluminum alloys -
Part 13. Determination of vanadium content
Ferrous ammonium sulfate titration
Part 13. Determinationofvanadiumcontent-
Issued on. 2012-11-07
2013-03-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 807-2012 "aluminum master alloy chemical analysis method" is divided into 14 parts.
--- Part 1. Determination of iron content dichromate method;
--- Part 2. Determination of manganese content Potassium periodate spectrophotometric method;
--- Part 3. Determination of nickel by titration with EDTA;
--- Part 4. Determination of chromium content ammonium persulfate oxidation - ammonium ferrous sulfate titration;
--- Part 5. Determination of zirconium content EDTA titration;
--- Part 6. Determination of boron ion selective electrode method;
--- Part 7. Determination of beryllium content Eriochrome cyanide blue R spectrophotometry;
--- Part 8. Determination of antimony content Potassium iodide spectrophotometry;
--- Part 9. Determination of bismuth content of potassium iodide spectrophotometry;
--- Part 10. Determination of potassium content by flame atomic absorption spectrometry;
--- Part 11. Determination of sodium content by flame atomic absorption spectrometry;
--- Part 12. Determination of copper content of sodium thiosulfate titration;
--- Part 13. Determination of vanadium content ammonium ferrous sulfate titration;
--- Part 14. Determination of strontium EDTA titration.
This is Part 13.
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 units. Aluminum Corporation of China Zhengzhou Research Institute, China Nonferrous Metals Industry Quality Standards and Metrology Institute
The study.
Participated in the drafting of this section. Guangzhou Nonferrous Metal Research Institute, Beijing Nonferrous Metal Research Institute, Fushun Aluminum Co., Ltd.
The main drafters of this section. Huang Pu Ying, Dai Fengying, Zhang Jin, Chengzi Hui, former Jianchang, Wu Yuchun, Li Chunying.
Intermediate aluminum alloys -
Part 13. Determination of vanadium content
Ferrous ammonium sulfate titration
Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
YS/T 807 provisions of this part of the determination of the intermediate aluminum alloy vanadium content.
This section applies to the determination of the intermediate aluminum alloy vanadium content. Measurement range of 2.00% - 12.00%.
2 Method summary
Sample after sulfuric acid - nitric acid - dissolved phosphoric acid, potassium permanganate oxidation of vanadium to High, in the presence of urea, with the decomposition of sodium nitrite
The amount of potassium permanganate, benzene behalf of the anthranilic acid as indicator, titrated with ferrous ammonium sulfate standard solution.
3 Reagents
Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling distilled water or potassium.
3.1 phosphoric acid (ρ = 1.70g/mL).
3.2 sulfate (ρ = 1.84g/mL).
3.3 nitric acid (ρ = 1.42g/mL).
3.4 potassium permanganate solution (25g/L).
3.5 urea solution (200g/L).
3.6 sodium nitrite solution (10g/L).
3.7 benzene on behalf of anthranilic acid indicator (2g/L). Weigh 0.2g benzene on behalf of anthranilic acid solution of sodium carbonate dissolved in 100mL
(2g/L), and mix well.
3.8 vanadium standard solution (0.0200mol/L). Weigh 2.2941g pre-bake 2h at 105 ℃ ~ 110 ℃ metavanadate (purity >
99.99%), placed in 400mL beaker, add about 10mL of water, 100mL sulfuric acid (11), completely dissolved by heating and micro risk fuming sulfuric acid, take
Under cooling, was added 200mL of water, heated and dissolved salts, remove cooling to room temperature, transferred to 1000mL volumetric flask, dilute to volume with water,
Mix well.
3.9 ferrous ammonium sulfate standard solution (0.02mol/L)
3.9.1 preparation. Weigh 7.8g of ammonium ferrous sulfate in the 500mL beaker, 300mL of sulfuric acid (595), stirred and dissolved. Moved
1000mL volumetric flask, sulfuric acid (595) was diluted to the mark, and mix. Overnight.
3.9.2 Calibration. Pipette 25.00mL vanadium standard solution (3.8) placed in 300mL Erlenmeyer flask (along with the blank test), was added 15mL
Sulfuric acid (3.2) and 15mL phosphoric acid (3.1) and mix. Water was added to 100mL, cooled to room temperature, 3 drops of benzene was added dropwise generations indicating anthranilic acid
Agent (3.7), ferrous ammonium sulfate standard solution (3.9) titration solution from purple to bright green as the end point.
According to equation (1) to calculate the concentration of ammonium ferrous sulfate standard solution.
...