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Chemical analysis methods of aluminium dardeners. Part 7: Determination of beryllium content. SCR spectrophotometric method
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YS/T 807.7-2012
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Basic data | Standard ID | YS/T 807.7-2012 (YS/T807.7-2012) | | Description (Translated English) | Chemical analysis methods of aluminium dardeners. Part 7: Determination of beryllium content. SCR spectrophotometric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H12 | | Classification of International Standard | 77.120.10 | | Word Count Estimation | 7,799 | | 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 method for determination of beryllium. This standard applies to aluminum master alloys of beryllium content. Measuring range: 0. 50% 6. 50%. | YS/T 807.7-2012: Chemical analysis methods of aluminium dardeners. Part 7: Determination of beryllium content. SCR spectrophotometric method
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Chemical analysis methods of aluminium dardeners.Part 7. Determination of beryllium content.SCR spectrophotometric method
ICS 77.120.10
H12
People's Republic of China Nonferrous Metals Industry Standard
Intermediate aluminum alloys -
Part 7. Determination of beryllium content
Eriochrome cyanide blue R spectrophotometry
Part 7. Determinationofberyliumcontent-
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 section YS/T Section 7807 of.
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. Fushun Aluminum Co., Ltd., Liaoning Zhongwang Group Co., Ltd.
The main drafters of this section. The original Jianchang, Xu Tieling, Wang Yuling, Zhang Ying, Zhang Jie, Li Pengwei, Hu Xuan, Qu Feng Jiao, Cao.
Intermediate aluminum alloys -
Part 7. Determination of beryllium content
Eriochrome cyanide blue R spectrophotometry
Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked
question. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This section YS/T 807 specifies the method for determination of aluminum alloy with beryllium content.
This section applies to the determination of aluminum alloy with beryllium content. Measuring range. 0.50% - 6.50%.
2 Method summary
Sample was dissolved with hydrochloric acid to disodium edetate, sodium tartrate as a masking agent, a pH of 9.5 in ammonia - ammonium nitrate buffer solution
The beryllium and Eriochrome cyanide blue R (SCR), cetyl trimethyl ammonium bromide (CTMAB) forming a ternary complex at the wavelength spectrophotometer
Measuring the absorbance at 560nm.
3 Reagents
Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling distilled water or potassium.
3.1 hydrochloride (11).
3.2 nitric acid (ρ = 1.42g/mL).
3.3 sodium tartrate solution (200g/L, to be filtered).
3.4 Disodium ethylenediaminetetraacetate (EDTA) solution (100g/L, to be filtered).
3.5 pairs nitrophenol solution (0.2g/L).
Aqueous ammonia 3.6 (ρ = 0.90g/mL).
3.7 Eriochrome cyanide blue R (2g/L). Weigh 0.500gSCR in 250mL beaker, add 2mL nitric acid (3.2), stirring with a glass rod
Uniform, then add about 150mL of water to dissolve it completely and transferred to 250mL volumetric flask, dilute to the mark with water and mix (such as turbidity to be filtered).
3.8 cetyl trimethyl ammonium bromide (CTMAB) solution (4g/L). Weigh 1.000gCTMAB in 250mL beaker, add
About 150mL of water, 10mL of ethanol and stirred, warmed to dissolve completely and transferred to 250mL volumetric flask, dilute to the mark with water, mix (make
If crystallization occurs can be used to warm to clear).
3.9 ammonia - ammonium nitrate buffer solution. Weigh 51.8g ammonium nitrate dissolved in about 400mL of water was added 65mL ammonia (3.6), and mix. use
Ammonia (3.6) or nitric acid (11) was adjusted to a pH of 9.5 (pH meter measurement) and transferred to 500mL volumetric flask, dilute to the mark with water,
Mix well.
3.10 Beryllium standard stock solution
3.10.1 preparation. Weigh 2.00g beryllium sulfate (BeSO4 · 4H2O) were dissolved in 100mL of water, filtered in 1000mL volumetric flask,
Added 340mL of hydrochloric acid (3.1), diluted with water to volume, and mix. This solution 1mL containing about 0.1mg beryllium.
It can also be used beryllium nitrate, beryllium carbonate Beryllium standard stock solution preparation.
3.10.2 Calibration. Pipette 50.00mL solution (3.10.1) in 250mL beaker, add 30mL water, heated to a boil, remove, add
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