YS/T 1071: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 1071-2024 | English | RFQ |
ASK
|
3 days [Need to translate]
|
(Chemical analysis method of spent catalyst for hydrogen peroxide - Determination of palladium content - Spectrophotometry and Inductively Coupled Plasma Atomic Emission Spectrometry)
| Valid |
YS/T 1071-2024
|
| YS/T 1071-2015 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Chemical analysis methods of hydrogen peroxide spent catalysts. Determination of palladium content. Spectrometry
| Obsolete |
YS/T 1071-2015
|
Basic data | Standard ID | YS/T 1071-2024 (YS/T1071-2024) | | Description (Translated English) | (Chemical analysis method of spent catalyst for hydrogen peroxide - Determination of palladium content - Spectrophotometry and Inductively Coupled Plasma Atomic Emission Spectrometry) | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H15 | | Classification of International Standard | 77.040.30 | | Date of Issue | 2024-10-24 | | Date of Implementation | 2025-05-01 | | Older Standard (superseded by this standard) | YS/T 1071-2015 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the method for determining the palladium content in waste catalysts for hydrogen peroxide by spectrophotometry and inductively coupled plasma atomic emission spectrometry. This standard is applicable to the determination of palladium content in waste catalysts for hydrogen peroxide, with a determination range of 200.0g/t to 6000.0g/t. | YS/T 1071-2015: Chemical analysis methods of hydrogen peroxide spent catalysts. Determination of palladium content. Spectrometry
---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.
(Determination of hydrogen peroxide for chemical analysis of the spent catalyst with a palladium content of spectrophotometry)
ICS 77.120.99
H68
People's Republic of China Nonferrous Metals Industry Standard
Hydrogen peroxide with a chemical analysis of the spent catalyst
Spectrophotometric determination of the amount of palladium
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) and focal points.
This standard is drafted by. Your research Platinum Ltd., your research resources (Yi door) Limited.
Participated in the drafting of this standard. Beijing Nonferrous Metal Research Institute, China Nonferrous Guilin Research Institute of Geology and Minerals Co. Ltd., Beijing Mining and Metallurgy
Research Institute, Guangzhou Nonferrous Metal Research Institute, Northwest Nonferrous Metal Research Institute, Henan Zhongyuan gold smelter limited liability company.
The main drafters of this standard. Li Yong, Hanshou Li, Tan Jin, Li Jin Xiao Zhu Feng advanced, Chen Xiaolan, Redevex science, Sunbao Lian, Liu Chengxiang,
He Xiaotang, Liu, Wuxi Long, Wang Huan, ZHAO Yu, Zhu Wuxun, Luo Xian, Ma Rui, Lin Bo, Liu Wei, Lu Jun Yu, Jin Yunjie, Giulia.
Hydrogen peroxide with a chemical analysis of the spent catalyst
Spectrophotometric determination of the amount of palladium
1 Scope
This standard specifies the method for determination of hydrogen peroxide with a palladium content of the spent catalyst.
This standard applies to the determination of hydrogen peroxide with a palladium content of the spent catalyst. Measuring range.200.0g/t ~ 6000.0g/t.
2 Method summary
Samples with hydrochloric acid, hydrogen peroxide in the teflon digestion tank enclosed heated and dissolved. With dibenzyl Dithiooxamide palladium (Ⅱ)
Color, chloroform extraction, dual wavelength spectrophotometric determination of palladium content.
3 Reagents and materials
Unless otherwise indicated, in the analysis using only the confirmation of analytical grade reagents and distilled water again.
3.1 over anhydrous sodium sulfate.
3.2 chloroform.
3.3 hydrochloric acid (ρ = 1.19g/mL).
3.4 nitric acid (ρ = 1.42g/mL).
3.5 Hydrogen peroxide (30% volume fraction).
3.6 hydrochloride (73).
3.7 dibenzyl Dithiooxamide (DbDo) acetone solution (10g/L). Weigh 1gDbDo dissolved in 100mL acetone, and mix.
3.8 sodium chloride solution (250g/L).
3.9 palladium standard stock solution. Weigh 0.1000g of palladium metal (mass fraction of not less than 99.99%) in the 200mL beaker, add 5mL
Hydrochloric acid (3.3), 1mL of nitric acid (3.4), cover the surface of the pan, over low heat to dissolve. Add 1mL sodium chloride solution (3.8), low temperature steam to the wet salt
Like adding 5mL hydrochloric acid (3.3), low temperature steam to the wet salt-like. Remove the cooling, hydrochloric acid was added 10mL (3.3), transferred to 100mL volumetric flask
Diluted with water to the mark. Mix well. 1mL solution containing 1mg palladium.
3.10 Palladium standard solution. Pipette 5.00mL palladium standard stock solution (3.9) in 250mL volumetric flask, was added 12.5mL hydrochloric acid (3.3),
Diluted with water to the mark. Mix well. This solution 1mL containing 20μg palladium.
3.11 PTFE digestion tank, volume 50mL.
4 instruments and equipment
Dual wavelength UV-Vis spectrophotometer.
5 Sample
5.1 Weigh 200g sample has been constant in porcelain evaporating dish placed in a muffle furnace and heated to 800 ℃ ± 5 ℃ burning 3h (taken every 1h
The agitation) out, coolish, placed in a desiccator, cool to room temperature. Weigh, to the nearest 0.01g.
|