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YS/T 594-2016: Rhodium(III) nitrate
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
YS/T 594-2016	English	419	Add to Cart	4 days [Need to translate]	Rhodium(III) nitrate
YS/T 594-2006	English	359	Add to Cart	3 days [Need to translate]	Rhodium (Ⅲ) nitrate

YS/T 594-2016: Rhodium(III) nitrate

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Rhodium (III) nitrate ICS 77.120.99 H68 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 594-2006 Rhodium nitrate 2016-07-11 released 2017-01-01 Implementation Issued by the Ministry of Industry and Information Technology of the People's Republic of China

Foreword

This standard is revised in accordance with the rules given in GB/T 1.1-2009. This standard replaces YS/T 594-2006 "Rhodium nitrate". Compared with YS/T 594-2006, this standard has the following changes. - the scope of the original standard rhodium nitrate solution for automotive exhaust catalytic converter load rhodium coating with rhodium nitrate solution modified to apply In the catalyst and automotive exhaust catalytic converter for rhodium coating with rhodium nitrate solution; --- added. "Rhodium nitrate formula. Rh (NO3) 3"; The rhodium content in the rhodium nitrate solution is modified from 100 g/L ± 0.5 g/L to 5% to 15% The contents of impurity elements Cu, Pb, As, Fe and Na were changed from 0.01g/L, 0.01g/L, 0.01g/L, 0.01g/L, 0.5g / 0.001%, 0.001%, 0.001%, 0.001%, 0.03%; --- supplementation of rhodium nitrate solution impurity element Cl < 0.05%; - the provisions of the rhodium nitrate solution [H]/[Rh] (hydrogen ion ratio rhodium) value of 0.8 to 5.0; --- increase the "3.4 dissolution experiment"; --- modified rhodium nitrate solution in the determination of impurity content; --- increase the determination of chloride ion content in rhodium nitrate solution. This standard by the National Nonferrous Metals Standardization Technical Committee proposed and centralized. Rhitherigma L.s. Rhitherigma L. Results Rhitherigmaulates Rhitherigma polymers Results Academy limited company. Rhitherical compositions.itherigma rounds.ither correlation outcome was Rhitherded Results, Wei Jianwei, Wang Huoying, Shen Shan asked. This standard replaced the previous version of the standard release. --- YS/T 594-2006. Rhodium nitrate

1 Scope

And Rhithers. Decision Results Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhithers. Rhitherian Rh- (Or contract) content. This standard applies to catalysts and automotive exhaust gas catalytic converters for rhodium coating with rhodium coating.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. YS/T 561 Precious metal alloy element analysis method Determination of rhodium amount in platinum and rhodium alloy Rules for sampling and acceptance of chemical reagents for HG/T 3921

3 request

3.1 Rhodium nitrate Molecular formula. Rh (NO3) 3. 3.2 Chemical composition The chemical composition of rhodium nitrate should meet the requirements of Table 1. Table 1 Chemical composition of rhodium nitrate solution Rhodium mass fraction /% Impurity element (mass fraction) /%, no more than Pb Cu Fe As Na Cl 5 to 15 0.001 0.001 0.001 0.001 0.03 0.05 3.3 The value of [H]/[Rh] in the rhodium nitrate solution is between 0.8 and 5.0. 3.4 Dissolution test Rhodium nitrate solution, visual no visible insoluble matter. 3.5 appearance The rhodium nitrate solution should be a brownish red liquid.

4 Experimental methods

Determination of rhodium content in rhodium nitrate solution Weigh 0.5g rhodium nitrate solution (accurate to 0.0001g), add 10mL hydrochloric acid to catch the nitrate and evaporate to near dry, repeat the above steps 3 times, converted into chlorine complex, dubbed the test solution, according to the provisions of YS/T 561 determination of rhodium content. 4.2 Determination of impurity element content Determination of Impurity Elements Lead, Copper and Iron in Rhodium Nitrate Solution According to the provisions of Appendix A, the determination of impurity element sodium was determined according to Appendix B ...