GB/T 39285-2020 English PDF

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GB/T 39285-2020: Method for chemical analysis of palladium compounds. Determination of chlorine content. Ion chromatography
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39285-2020	129	Add to Cart	3 days	Method for chemical analysis of palladium compounds. Determination of chlorine content. Ion chromatography	Valid

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Basic data

Standard ID: GB/T 39285-2020 (GB/T39285-2020)
Description (Translated English): Method for chemical analysis of palladium compounds. Determination of chlorine content. Ion chromatography
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H15
Classification of International Standard: 77.120.99
Word Count Estimation: 7,797
Date of Issue: 2020-11-19
Date of Implementation: 2021-10-01
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the method for determination of chlorine content in palladium compounds. This standard applies to the determination of chlorine content in compounds such as palladium nitrate, palladium sulfate, palladium acetate, tetrakis(triphenylphosphonium) palladium, and tris(dibenzylideneacetone) dipalladium. The measurement range is shown in Table 1.

GB/T 39285-2020: Method for chemical analysis of palladium compounds. Determination of chlorine content. Ion chromatography

---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.
Method for chemical analysis of palladium compounds - Determination of chlorine content - Ion chromatography ICS 77.120.99 H15 National Standards of People's Republic of China Palladium compound analysis method Determination of chlorine content Ion chromatography 2020-11-19 released 2021-10-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). Drafting organizations of this standard. Zhejiang Weitong Catalytic New Material Co., Ltd., Non-ferrous Metal Technology and Economic Research Institute Co., Ltd., Zhejiang Province Metallurgical Research Institute Co., Ltd., Jiangxi Han's Precious Metals Co., Ltd., Guiyan Platinum Co., Ltd., Shenzhen Zhongjin Lingnan Nonferrous Metals Co., Ltd., Zijin Mining Group Co., Ltd., Shaanxi Ruike New Materials Co., Ltd., Changchun Gold Research Institute Co., Ltd. The main drafters of this standard. Pan Jianming, Wang Guanqun, Ma Yinbiao, Wei Qing, Wang Shuying, Yu Fengshan, Wei Xiaojuan, Xie Zhiping, Shi Chunmiao, Liu Bin, Ju Jingxi, Su Linlin, Zuo Hongyi, Tan Xiuli, Xia Xiujuan, Long Xiujia, Chen Yonghong, Wang Ju, Zhang Lingzhi, Zhou Shuyan, Shi Xiaoni, Wang Wei, Chen Hua, Yang Liqiang. Palladium compound analysis method Determination of chlorine content Ion chromatography

1 Scope

This standard specifies the method for determination of chlorine content in palladium compounds. This standard applies to palladium compounds such as palladium nitrate, palladium sulfate, palladium acetate, tetrakis(triphenylphosphine)palladium, tris(dibenzylideneacetone)dipalladium, etc. containing chlorine Determination of the amount. The measurement range is shown in Table 1. Table 1 Measuring range Sample mass fraction/% Palladium nitrate, palladium sulfate 0.00100~0.0300 Palladium acetate, tetrakis(triphenylphosphine)palladium, tris(dibenzylideneacetone)dipalladium 0.0100~0.500

2 Method summary

Palladium nitrate and palladium sulfate are reduced with hydrazine hydrate to precipitate palladium in the compound, and the supernatant is used to determine the mass content of chlorine by ion chromatography Count; palladium acetate, tetrakis (triphenylphosphine) palladium, and tris (dibenzylideneacetone) two palladium are pretreated with oxygen bomb combustion, and then absorbed by sodium carbonate-sodium bicarbonate solution Collect, ion chromatograph to determine the mass fraction of chlorine.

3 reagent

Unless otherwise specified, only reagents confirmed to be pure superior grade and water of equivalent first grade purity are used in the analysis. 3.1 Sodium carbonate. 3.2 Sodium bicarbonate. 3.3 Sodium chloride (reference reagent). 3.4 Sodium hydroxide solution (80g/L). 3.5 Hydrazine hydrate (ρ=1.03g/mL). 3.6 Eluent (3.2mmol/L sodium carbonate 1.0mmol/L sodium bicarbonate solution). weigh 0.3392g sodium carbonate (3.1) and 0.0840g carbon Sodium bicarbonate (3.2) is dissolved by adding an appropriate amount of water, transferred to a 1000mL volumetric flask, diluted with water to the mark, and mixed. Or select according to the instrument column Choose eluent. 3.7 Absorbent solution. same as eluent (3.6). 3.8 Chloride ion standard stock solution. Weigh 0.1649g of sodium chloride (3.3) which has been burnt to constant weight at 600℃, and place it in 100mL. Add 10mL of water to the cup, heat at low temperature to dissolve completely, transfer to a 100mL volumetric flask, dilute to the mark with water, and mix. 1mL of this solution Contains 1000μg chlorine. 3.9 Chloride ion standard solution. Pipette 5.00mL chloride ion standard stock solution (3.8), place it in a 100mL volumetric flask, and dilute it with water Degree, mix well. This solution 1mL contains 50μg chlorine. ......

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