GB/T 3884.16-2014 English PDF

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GB/T 3884.16-2014: Methods for chemical analysis of copper concentrates -- Part 16: Determination of silicon dioxide content -- K2SiF6 titrimetric method and gravimetric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3884.16-2014	209	Add to Cart	3 days	Methods for chemical analysis of copper concentrates -- Part 16: Determination of silicon dioxide content -- K2SiF6 titrimetric method and gravimetric method	Valid

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Basic data

Standard ID: GB/T 3884.16-2014 (GB/T3884.16-2014)
Description (Translated English): Methods for chemical analysis of copper concentrates -- Part 16: Determination of silicon dioxide content -- K2SiF6 titrimetric method and gravimetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.60
Word Count Estimation: 9,925
Date of Issue: 12/5/2014
Date of Implementation: 8/1/2015
Regulation (derived from): Announcement of Newly Approved National Standards 2014 No. 27
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Standard specifies the method for determination of silicon dioxide content in copper concentrate. This section applies to the determination of silicon dioxide content in copper concentrates. A method for determining the range of 0.50% ~ 32.OO%; 2 mea

GB/T 3884.16-2014: Methods for chemical analysis of copper concentrates -- Part 16: Determination of silicon dioxide content -- K2SiF6 titrimetric method and gravimetric 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 concentrates Part 16. Determination of silicon dioxide content K2SiF6 titrimetric method and gravimetric method. ICS 77.120.60 H13 National Standards of People's Republic of China Methods for chemical analysis of copper concentrates Part 16. Determination of the amount of silica Silicon potassium fluoride titration and gravimetric method Part 16. Determinationofsilicondioxidecontent- Issued on. 2014-12-05 2015-08-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 3884 "Methods for chemical analysis of copper concentrate" is divided into 18 parts. --- Part 1. Determination of copper content iodometry; --- Part 2. Determination of the amount of gold and silver by flame atomic absorption spectroscopy and fire assay; --- Part 3. Determination of sulfur content - Gravimetric and combustion - titration; --- Part 4. Determination of magnesium oxide content - Flame atomic absorption spectrometry; --- Part 5. Determination of the amount of fluorine ion selective electrode method; --- Part 6. Determination by flame atomic lead, zinc, cadmium and nickel absorption spectrometry; --- Part 7. Determination of lead content Na2EDTA titration; --- Part 8. Determination of zinc contents Na2EDTA titration; --- Part 9. Determination of the amount of arsenic and bismuth hydride generation - atomic fluorescence spectrometry, potassium bromate titration and diethyl dithiocarbamate Acid silver spectrophotometry; --- Part 10. Determination of antimony content hydride generation - atomic fluorescence spectrometry; --- Part 11. Determination of mercury content - Cold atomic absorption spectrometry; --- Part 12. Determination of the amount of fluorine and chlorine ion chromatography; --- Part 13. Determination of copper content electrolysis; --- Part 14. Determination of the amount of gold and silver fire assay gravimetric method and atomic absorption spectrometry; --- Part 15. Determination of iron content dichromate method; --- Part 16. Determination of the amount of silica potassium fluosilicate titration and gravimetric method; --- Part 17. alumina amount Chromazurol S Solubilization Spectrophotometric and precipitation - fluoride replacement - Na2EDTA titration; --- Part 18. arsenic, antimony, bismuth, lead, zinc, nickel, cadmium, cobalt, magnesium oxide, calcium oxide content - Inductively coupled plasma atomic hair Emission spectrometry. This section GB/T Part of 163,884. 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. Daye Nonferrous Metals Group Holdings Limited. This section is drafted. Zhongtiaoshan Nonferrous Metals Group Co., Ltd., Tongling Nonferrous Metals Group Holdings Limited, Daye Nonferrous Metals Group Holdings Limited, Beijing General Research Institute of Mining and Metallurgy, Zijin Mining Group Co., Ltd., Yunnan Copper Co., Ltd., Yanggu Yoshimitsu Copper Co., Ltd., Zhejiang Huayou Cobalt Co. Ltd.. The main drafters of this section. Dong Xiaolin, Liqin Mei, Zhang Guanghua, Wang Jinping, Ma Lijun, Zhang Wanxing, often Ji Xiang, Dong Junlong, from Shao and, Li Hongying, Xiao-Yan Chen, Ho Mei, Yuan Yuxia, Hujun Kai, Miss Li, Gao Ying Jian, Jiang Tao seeking, Li Huarong, Luo Xiufen, Zhongyue Han, Liu Yan, Yu Chen Bin, Li Chaoyang, Xie Bohua, Fanjuan Hui, Ye Xin, Zheng Wenying, Zhang in. Methods for chemical analysis of copper concentrates Part 16. Determination of the amount of silica Silicon potassium fluoride titration and gravimetric method

1 Scope

GB/T 3884 This section specifies the method for determination of silicon dioxide content in copper concentrate. This section applies to the determination of silicon dioxide content in copper concentrates. The method of measurement range 1 0.50% 32.00%; measured as 2 Set in the range of 0.50% - 40.00%. Note. This is Part 2 Method of arbitration method. 2-fluoro-1 potassium silicate Titration 2.1 Method summary Sample with a base melted with hot water extraction, after acidification, in strongly acidic solution was added potassium chloride and potassium fluoride and potassium silicate formed fluorosilicone The precipitate potassium fluorosilicate in hot water hydrolysis, precipitation of material quality of hydrofluoric acid, using phenolphthalein as an indicator, titration of sodium hydroxide standard titration solution, Calculated according to the mass fraction of silica sodium hydroxide standard titration solution volume consumed. 2.2 Reagents Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 2.2.1 sodium hydroxide. 2.2.2 potassium hydroxide. 2.2.3 sodium peroxide. 2.2.4 Potassium chloride. 2.2.5 potassium hydrogen phthalate, the former reference reagent used in 105 ℃ ~ 110 ℃ drying 2h. 2.2.6 hydrochloric acid (ρ = 1.19g/mL). 2.2.7 hydrochloric acid (11). 2.2.8 nitric acid (ρ = 1.42g/mL). 2.2.9 potassium fluoride solution (200g/L). Weigh 100g of potassium fluoride were dissolved in 300mL of water, 100mL added nitric acid (2.2.8), diluted with water Diluted to 500mL, was added potassium chloride (2.2.4) to saturation, mix, 30min dry filter in a plastic bottle aside. 2.2.10 washing solution. Weigh 250g of potassium chloride (2.2.4) was dissolved in 3000mL water, adding 1000mL ethanol, diluted with water to 5000mL, mixed Absorbed by adding 1mL phenolphthalein ethanol solution (2.2.15), with sodium hydroxide solution (2.2.14) and to the solution was slightly red. 2.2.11 potassium chloride - ethanol solution. Weigh 5g of potassium chloride (2.2.4) dissolved in 50mL of water was added 50mL of ethanol, and mix. 2.2.12 potassium sodium tartrate solution (10g/L). Weigh 10g of potassium sodium tartrate was dissolved in 1L of water, add 5 drops of phenolphthalein ethanol solution after boiling (2.2.15), with sodium hydroxide solution (2.2.14) and to the solution was slightly red. 2.2.13 sodium hydroxide standard titration solution (cNaOH = 0.1mol/L). 2.2.13.1 preparation. 2.2.13.1.1 weighed 110g of sodium hydroxide (2.2.1) dissolved in 100mL of carbon dioxide-free water, mix, into polyethylene container, dense Place close to the solution clear. ......

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