|
US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 990.10-2014: Methods for chemical analysis of copper matte. Part 10: Determination of silicon dioxide content. Molybdenum blue spectrophotometry and potassium fluosilicate titrimetric method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 990.10-2014 | English | 239 |
Add to Cart
|
3 days [Need to translate]
|
Methods for chemical analysis of copper matte. Part 10: Determination of silicon dioxide content. Molybdenum blue spectrophotometry and potassium fluosilicate titrimetric method
| Valid |
YS/T 990.10-2014
|
PDF similar to YS/T 990.10-2014
Basic data | Standard ID | YS/T 990.10-2014 (YS/T990.10-2014) | | Description (Translated English) | Methods for chemical analysis of copper matte. Part 10: Determination of silicon dioxide content. Molybdenum blue spectrophotometry and potassium fluosilicate titrimetric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 9,968 | | Date of Issue | 10/14/2014 | | Date of Implementation | 4/1/2015 | | Regulation (derived from) | People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This Standard specifies the method for determination of copper matte silica content. This section applies to the determination of copper in silicon dioxide ice content, method 1 was measured in the range of 0.50% to 2.00%; 2 measuring range of the method | YS/T 990.10-2014: Methods for chemical analysis of copper matte. Part 10: Determination of silicon dioxide content. Molybdenum blue spectrophotometry and potassium fluosilicate 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 for chemical analysis of copper matte Part 10. Determination of silicon dioxide content Molybdenum blue spectrophotometry and potassium fluosilicate titrimetric method
ICS 77.120.30
H13
People's Republic of China Nonferrous Metals Industry Standard
Matte chemical analysis
Part 10. Determination of the amount of silica
Silicon molybdenum blue spectrophotometry and potassium fluosilicate Titration
Part 10. Determinationofsilicondioxidecontent-
Issued on. 2014-10-14
2015-04-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 990 "Methods for chemical analysis of copper matte" is divided into 18 parts.
--- Part 1. Determination of copper content iodometry;
--- Part 2. Determination of gold and silver atomic absorption spectroscopy and fire assay;
--- Part 3. Determination of sulfur content - Gravimetric method and combustion titration method;
--- Part 4. Determination of the amount of bismuth atomic absorption spectrometry;
--- Part 5. Determination of the amount of fluorine ion selective electrode method;
--- Part 6. Determination of lead content - Atomic absorption spectrometry and Na2EDTA titration;
--- Part 7. Determination of cadmium content - Atomic absorption spectrometry;
--- Part 8. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry, diethyl dithiocarbamate spectrophotometry silver
And potassium bromate titration;
--- Part 9. Determination of iron content dichromate method;
--- Part 10. Determination of silicon dioxide content molybdenum blue spectrophotometric method and silicon potassium fluoride titration;
--- Part 11. Determination of the amount of nickel atom absorption spectrometry;
--- Part 12. Determination of the amount of chromium oxide of aluminum Azure S Spectrophotometry;
--- Part 13. Determination of magnesium oxide content - Atomic absorption spectrometry;
--- Part 14. Determination of the amount of zinc atomic absorption spectrometry and Na2EDTA titration;
--- Part 15. Determination of antimony content - Atomic absorption spectrometry;
--- Part 16. Determination of mercury content - Cold atomic absorption spectrometry;
--- Part 17. Determination of the amount of cobalt atomic absorption spectrometry;
--- Part 18. lead, zinc, nickel, arsenic, bismuth, antimony, calcium, magnesium, cadmium, cobalt content - Inductively coupled plasma atomic emission spectrometry.
This section YS/T Part 10 990.
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. Zhongtiaoshan Nonferrous Metals Group Co., Ltd. Daye Nonferrous Metals Group Holdings Limited.
Part 1 Drafting Unit. Beijing General Research Institute of Mining and Metallurgy.
This section participated in the drafting unit 1. Industrial Technology Research Institute of Guangdong Province (Guangzhou Nonferrous Metal Research Institute), Yanggu Yoshimitsu Copper Limited
Secretary, Baiyin Nonferrous Group Co., Ltd., Beijing Nonferrous Metal Research Institute.
This section Method 2 drafting units. Zhongtiaoshan Nonferrous Metals Group Co., Ltd.
This section participated in the drafting Method 2. Daye Nonferrous Metals Group Holdings Co., Ltd., Yunnan Copper Co., Ltd., Zhuzhou Smelter
Group Co., Baiyin Nonferrous Group Co., Ltd., Guangzhou Nonferrous Metal Research Institute.
The main drafters of this Part 1. Gao Ying Jian Feng advanced Daifeng Ying, Xie Hui, million pairs, Qi spent months and Wang Min, provincial Zheng and Chen Yun red,
Yang Ping.
The main drafters of this section Method 2. Dong Junlong, Chang Ji Xiang, Li Hongying, Fan Lanju, Zhang high society, Pan Guiping, drip - Yu Chen Bin, Zheng Wenying,
Chun Zhang, Xiao Xiaohui, Wang Hongyan, Zhang Yan Tsui, Daifeng Ying, Xie Hui.
Matte chemical analysis
Part 10. Determination of the amount of silica
Silicon molybdenum blue spectrophotometry and potassium fluosilicate Titration
1 Scope
This section YS/T 990 specifies the method for determination of copper matte silica content.
This section applies to the determination of copper in ice silica content, method of measurement in the range of 0.50% to 2.00%; Tier 2 measurement range
2.00% - 22.00%.
2. Method 1. Silicon molybdenum blue spectrophotometry
2.1 Method summary
Sample molten potassium hydroxide, in weak acid solution, ammonium molybdate soluble silicic acid can be generated with yellow silicon molybdenum heteropoly acid, this can heteropolyacid
Reduction by ferrous sulfate into silicon molybdenum blue, without the use of ammonium molybdate solution as reference, measure the absorbance in a spectrophotometer at a wavelength of 650nm to
Working curve silica content.
2.2 Reagents
Unless otherwise indicated, used in the analysis confirmed only for the gifted class pure reagents and a water.
2.2.1 mixed flux. Two anhydrous sodium carbonate and a boric acid finely and mix.
2.2.2 potassium hydroxide.
2.2.3 ferrous ammonium sulfate.
2.2.4 oxalic acid.
2.2.5 ascorbic acid.
2.2.6 hydrochloric acid (ρ = 1.19g/mL).
2.2.7 hydrochloric acid (11).
2.2.8 hydrochloric acid (16).
2.2.9 hydrochloride (892).
2.2.10 sulfuric acid (ρ = 1.84g/mL).
2.2.11 potassium hydroxide solution (200g/L).
2.2.12 ammonium molybdate solution (100g/L). Weigh 50g of ammonium molybdate was dissolved in 500mL boiling water, and mix.
2.2.13 reducing solution. the 12.5g ferrous ammonium sulfate (2.2.3), 16.2g of oxalic acid (2.2.4), 1g of ascorbic acid (2.2.5), 67.5mL sulfuric acid
(2.2.10) was dissolved in 740mL of water, and mix.
2.2.14 silica standard stock solution. Accurately weigh 0.1000g silica (wSiO2≥99.99%) in a platinum crucible, add 5g
Mixed flux (2.2.1), mix, then cover the surface 2g flux (2.2.1), capped at 900 ℃ ~ 950 ℃ muffle furnace melting 1h, remove the cold
But later, placed polytetrafluoroethylene beaker, dissolved in water, the solution to be clarified later transferred to 1000mL volumetric flask, dilute to the mark with water, mix
uniform. Transferred to a plastic bottle for storage. 1mL of this solution is a silica-containing 100μg/mL.
2.2.15 phenolphthalein ethanol solution (10g/L). 1g phenolphthalein dissolved in 100mL of ethanol, and mix.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YS/T 990.10-2014_English be delivered?Answer: Upon your order, we will start to translate YS/T 990.10-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of YS/T 990.10-2014_English with my colleagues?Answer: Yes. The purchased PDF of YS/T 990.10-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|