YS/T 1071-2024 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 1071-2024	RFQ	ASK	3 days	(Chemical analysis method of spent catalyst for hydrogen peroxide - Determination of palladium content - Spectrophotometry and Inductively Coupled Plasma Atomic Emission Spectrometry)	Valid
YS/T 1071-2015	199	Add to Cart	3 days	Chemical analysis methods of hydrogen peroxide spent catalysts. Determination of palladium content. Spectrometry	Obsolete

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Older Standard (superseded by this standard): YS/T 1071-2015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

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(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. ......

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