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GB/T 34609.1-2017: Method for chemical analysis of rhodium compounds -- Part 1: Determination of rhodium content -- Gravimetric method with hexaammine cobalt nitrate
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Method for chemical analysis of rhodium compounds -- Part 1: Determination of rhodium content -- Gravimetric method with hexaammine cobalt nitrate
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GB/T 34609.1-2017
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Basic data | Standard ID | GB/T 34609.1-2017 (GB/T34609.1-2017) | | Description (Translated English) | Method for chemical analysis of rhodium compounds -- Part 1: Determination of rhodium content -- Gravimetric method with hexaammine cobalt nitrate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H15 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 10,110 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-05-01 | | 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 | GB/T 34609.1-2017: Method for chemical analysis of rhodium compounds -- Part 1: Determination of rhodium content -- Gravimetric method with hexaammine cobalt nitrate
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Method for chemical analysis of rhodium compounds - Part 1. Determination of rhodium content - Gravimetric method with hexaammine cobalt nitrate
ICS 77.120.99
H15
National Standards of People's Republic of China
Methods for chemical analysis of rhodium compounds
Part 1. Determination of rhodium content
Ammonium hexammine cobalt gravimetric method
Method for chemical analysis of rhodium compounds-
Part 1.Determinationofrhodiumcontent-
2017-10-14 Published
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 34609 "rhodium chemical analysis method" is divided into two parts.
--- Part 1. Determination of rhodium content of hexamine cobalt nitrate gravimetric method;
--- Part 2. Determination of platinum, palladium, iridium, ruthenium, gold, silver, lead, nickel, copper, iron, aluminum, magnesium, manganese, zinc, calcium, silicon, sodium, tin,
Combined plasma atomic emission spectrometry.
This section GB/T 34609 Part 1.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Nonferrous Metal Industry Association.
This part of the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for the drafting unit. Your research Platinum Co., Ltd., your research and testing technology (Yunnan) Co., Ltd., non-ferrous metal technology economy
Institute.
This section participates in the drafting unit. Guangdong Provincial Industrial Analysis and Testing Center, Zhejiang Metallurgical Research Institute Co., Ltd., Chenzhou City, product quality
Supervision and Inspection Institute, Jinchuan Group Co., Ltd.
The main drafters of this section. Tao Sai Xiang, Yang Meiying, Luo Yijiang, Xiang Lei, Wang Teng, Qian Yanlin, Jin Yaqiu, Xing Yinjuan, Yang Hui, Gan Jian Zhuang,
Zhao Wenhu, Ma Yuan, Fang Wei, Zhu Wuxun, Chen Xiaolan, Wang Fang, Wei Xiaojuan, Wang Shu Shu, Xiao Liu Ping, Zhou Jiao Lian, Ma Yuping, Zhou Zhiyong.
Methods for chemical analysis of rhodium compounds
Part 1. Determination of rhodium content
Ammonium hexammine cobalt gravimetric method
1 Scope
GB/T 34609 provisions of this part of the determination of rhodium rhodium compounds.
This section applies to rhodium nitrate (Rh (NO3) 3), rhodium sulfate (Rh2 (SO4) 3), rhodium trichloride (RhCl3), rhodium iodide (RhI3), rhodium acetate
Rhodium octylate ([Rh (CH3 (CH2) 6CO2) 2] 2), rhodium acetylacetonate (C15H21O6Rh)
Determination of rhodium content in triphenylphosphine rhodium chloride ([(C6H5) 3P] 3RhCl). Measurement range .5% ~ 50%.
2 method principle
The sample was pretreated with nitric acid, hydrochloric acid and perchloric acid, then digested in polytetrafluoroethylene tank and hydrochloric acid-hydrogen peroxide was digested under high temperature and high pressure,
Chlorine complex slightly acidic solution, with rhodium nitrate hexamine cobalt complex precipitation, gravimetric determination of rhodium.
3 reagent
Unless otherwise specified, only reagents that are identified as analytically pure and secondary water are used in the analysis.
3.1 sodium nitrite.
3.2 Nitric acid (p = 1.42 g/mL).
3.3 Hydrochloric acid (p = 1.19 g/mL).
3.4 Absolute ethanol (ρ = 0.79g/mL).
3.5 ether (p = 1.19 g/mL).
3.6 perchloric acid (70.0% ~ 72.0%).
3.7 Hydrogen peroxide (30%, volume fraction).
3.8 Ammonium hexamine cobalt saturation solution Weigh 17g crystalline hexamine cobalt, add 300mL of water, heated to dissolve, with fast qualitative filter paper
After filtration, dilute to 1000 mL.
3.9 Ammonium hexamine cobalt lotion Take 15mL hexamine cobalt saturated solution, diluted with water to 500mL.
Note Preparation of hexamine cobalt nitrate in Appendix A.
4 device
Balance. Sense of 0.01mg.
5 sample
Samples stored in a closed container, the time is now.
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