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YS/T 569.5-2015 English PDF

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YS/T 569.5-2015: Methods for chemical analysis of thallium. Part 5: Determination of cadmium content. Dithizone benzene extraction spectrophotometry
Status: Valid

YS/T 569.5: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
YS/T 569.5-2015English169 Add to Cart 3 days [Need to translate] Methods for chemical analysis of thallium. Part 5: Determination of cadmium content. Dithizone benzene extraction spectrophotometry Valid YS/T 569.5-2015
YS/T 569.5-2006English199 Add to Cart 2 days [Need to translate] Determination of cadmium content in the thallium (the dithizone benzene extraction photometric method) Obsolete YS/T 569.5-2006

PDF similar to YS/T 569.5-2015


Standard similar to YS/T 569.5-2015

GB/T 4698.17   XB/T 619   YS/T 555.11   YS/T 569.1   YS/T 569.3   YS/T 569.10   

Basic data

Standard ID YS/T 569.5-2015 (YS/T569.5-2015)
Description (Translated English) Methods for chemical analysis of thallium. Part 5: Determination of cadmium content. Dithizone benzene extraction spectrophotometry
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H14
Classification of International Standard 77.120.99
Word Count Estimation 7,792
Date of Issue 2015-04-30
Date of Implementation 2015-10-01
Older Standard (superseded by this standard) YS/T 569.5-2006
Regulation (derived from) Ministry of Industry and Information Technology Announcement (2015 No. 28)
Issuing agency(ies) Ministry of Industry and Information Technology
Summary This Standard specifies the method for determination of thallium in cadmium content. This section applies to the determination of thallium in cadmium content. Measuring range: 0.0005% to 0.035%.

YS/T 569.5-2015: Methods for chemical analysis of thallium. Part 5: Determination of cadmium content. Dithizone benzene extraction spectrophotometry


---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 thallium Part 5. Determination of cadmium content Dithizone benzene extraction spectrophotometry ICS 77.120.99 H14 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 569.5-2006 Chemical analysis of thallium Part 5. Determination of cadmium content Benzene extraction dithizone spectrophotometry Part 5. Determinationofcadmiumcontent- 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 569 "thallium chemical analysis method" is divided into 10 parts. --- Part 1. Determination of copper content copper reagent chloroform extraction spectrophotometry; --- Part 2. Determination of iron content - Phenanthroline spectrophotometric method; --- Part 3. Determination of mercury content of Diphenylthiocarbazone extraction spectrophotometry; --- Part 4. Determination of zinc content of benzene extraction dithizone spectrophotometry; --- Part 5. Determination of cadmium content of benzene extraction dithizone spectrophotometry; --- Part 6. Determination of lead content of benzene extraction dithizone spectrophotometry; --- Part 7. Determination of the amount of chrome aluminum Azure S Spectrophotometry; --- Part 8. Determination of indium content of crystal violet benzene extraction spectrophotometry; --- Part 9. Determination of the amount of silicon silicon molybdenum blue isoamyl alcohol extraction spectrophotometric method; --- Part 10. Determination of the amount of thallium Na2EDTA titration. This section YS/T 569 Part 5. This section drafted in accordance with GB/T 1.1-2009 given rules. The partial replacement of YS/T 569.5-2006 "Thallium - Determination of cadmium content (benzene extraction dithizone photometric method)" (formerly GB 2592.5- 1981). This portion of YS/T 569.5-2006 compared to the main changes are as follows. --- Text format has been modified; --- Increased test reporting requirements. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) and focal points. This section is drafted. Hunan Nonferrous Metal Research Institute, Hunan Nonferrous Metals Group Co., Ltd. Shuikoushan, Entry-Exit Inspection and Fangchenggang Quarantine Bureau, Hunan Chenzhou City Jingui Silver Industry Co., Ltd., China Nonferrous Guilin Research Institute of Geology and Minerals Co. Ltd.. The main drafters of this section. Pang Wenlin, Zhang Xuelian, Juan, Xiabing Wei, Tan Qian Lv Zee, Xie Yu Group, Liu Chao, Zeng Long Hu Ching Ching, Chen Zhu Bing. This part of the standard replaces the previous editions are. --- GB 2592.5-1981; --- YS/T 569.5-2006. Chemical analysis of thallium Part 5. Determination of cadmium content Benzene extraction dithizone spectrophotometry

1 Scope

YS/T 569 This part provides for determination of thallium in cadmium content. This section applies to the determination of thallium in cadmium content. Measurement range. 0.0005% to 0.035%.

2 Method summary

Sample dissolved in nitric acid, sodium hydroxide medium 2mol/L, the red cadmium complexes formed with dithizone can be quantitatively extracted benzene, Excess dithizone may be washed with dilute ammonia is removed, the organic phase was measured absorbance at 520nm wavelength spectrophotometer.

3 Reagents

3.1 sulfate (ρ = 1.84g/mL). 3.2 hydrochloric acid (ρ = 1.19g/mL). 3.3 nitric acid (ρ = 1.42g/mL). 3.4 hydrochloride (11). 3.5 nitric acid (11). 3.6 Aqueous ammonia (11). 3.7 ammonia (199). 3.8 sulfuric acid - nitric acid mixture (11). 3.9 ascorbic acid. 3.10 isopropyl ether. 3.11 benzene. 3.12 CTC. 3.13 hydrogen peroxide (30%), pure class distinctions. 3.14 Sodium hydroxide solution (200g/L). 3.15 pairs Diphenylthiocarbazone benzene solution (0.05g/L). Weigh 0.25g of purified dithizone was added 100mL of benzene was dissolved, placed in a brown bottle, shake uniform. Pipette 2mL of the solution, placed in a brown bottle, add 98mL benzene, shake, now equipped with time. Dithizone purification. Weigh 1g dithizone dissolved in 100mL of chloroform, and the solution was filtered in a separating funnel with 100mL ~ 200mL ammonia (3.7) oscillation 1min ~ 2min, after standing layer, the aqueous phase was transferred to a beaker, the above operation is repeated 2 to 4 times. Water Consistency and. After filtration cotton, acidified with hydrochloric acid to precipitate completely dithizone, sand core crucible with suction, washed with water 3 to 4 times, in dithizone 40 ℃ after drying in a dryer stored. 3.16 pairs Diphenylthiocarbazone solution (0.05g/L). Weigh 0.25g dithizone (purified) was added 100mL of carbon tetrachloride was dissolved, set In a brown bottle. Pipette 2mL of the solution, placed in a brown bottle, add 98mL of carbon tetrachloride, shake with a time now equipped. 3.17 ammonium citrate solution (500g/L). Weigh 50g ammonium citrate, dissolved in water and diluted to 100mL, 500mL dispenser placed drain

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