The article contains sections titled: 1. History 2. Properties 3. Occurrence 3.1. Abundance 3.2. Ores and Their Origin 3.3. Primary Deposits 3.4. Secondary Deposits 3.5. Recovery of Secondary Platinum Group Metals 3.6. Reserves and Resources 4. Mineral Dressing and Beneficiation 4.1. Treatment of Alluvial Platinum Deposits 4.2. Treatment of Primary Deposits 4.3. Treatment of Nickel Ores 4.4. Treatment of Metal Scrap 4.5. Treatment of Dross 4.6. Treatment of Supported Catalysts 4.7. Treatment of Solutions 5. Dissolution Methods 5.1. Dissolution in Aqua Regia 5.2. Dissolution in Hydrochloric Acid–Chlorine 5.3. Dissolution in Hydrochloric Acid–Bromine 5.4. Other Dissolution Processes 5.5. Dissolution by Salt Fusion 6. Separation of Platinum Group Metals 6.1. Chemistry of Platinum Group Metal Separation 6.2. Older Separation Processes 6.3. Current Separation Processes 6.4. Processes Used in Coarse Separation 6.5. Purification 6.6. Conversion of Salts into Metals 6.7. Partial Purification 6.8. Treatment of Internally Recycled Material 6.9. Construction Materials 7. Platinum Group Metal Compounds 7.1. Inorganic Compounds 7.1.1. Platinum Compounds 7.1.2. Palladium Compounds 7.1.3. Rhodium Compounds 7.1.4. Iridium Compounds 7.1.5. Ruthenium Compounds 7.1.6. Osmium Compounds 7.2. Organic Compounds 8. Alloys 8.1. Alloy Systems 8.2. Special Alloys 8.3. Methods of Treatment 9. Quality Specifications and Analysis 9.1. Quality Specifications 9.2. Qualitative Analysis 9.3. Quantitative Analysis 9.4. Purity Analysis 9.5. Trace Analysis 10. Uses 10.1. Jewelry, Coinage, Investment 10.2. Apparatus 10.3. Heterogeneous Catalysts 10.4. Fuel Cells 10.5. Homogeneous Catalysts 10.6. Automotive Emission Control Catalysts 10.7. Sensors 10.8. Electrical Technology 10.9. Electronics 10.10. Coatings 10.10.1. Coatings Produced by Electrolysis 10.10.2. Coatings Produced by Chemical Reaction 10.10.3. Coatings Produced by Physical Methods 10.11. Dental Materials 11. Economic Aspects 11.1. Supply 11.2. Demand 11.3. Prices 11.4. Commercial Aspects 12. Toxicology
No abstract
Inhaltsiibersicht. Bei der Reaktion von RhCl, . 3H20 mit Diethylentriamin in 12molarer Salzsaure erhalt man Diethylentriammoniumhexachlororhodat [HsN(CH2)2NHz(CHZ)zNH3][RhC16](1). Dunkelrote Einkristalle wurden in der Mutterlauge unter hydrothermalen Bedingungen innerhalb einiger Wochen in einem Temperaturintervall von 180 "C -125 "C in verschlossenen Glasampullen geziichtet (Raumgruppe C2/c, a = 30,956(4) A, b = 7,371(2) A, c = 12,9736(15) A, p = 113,787(11)", Z = 8, 2385 Reflexe mit I > 0, wR2(obs.) = 0,0279, R'(1 > 2a(I)) = 0,0271). Die Struktur wird durch ein komplexes Netzwerk von Wasserstoffbriickenbindungen zwischen den Hexachlororhodat-Anionen und den Diethylentriammonium-Kationen bestimmt.Abstract. The reaction of RhCI, . 3 HzO with diethylenetriami-wR2(obs.) = 0.0279, R'(1 > 20(I)) = 0.0271). The crystal ne in 12 m hydrochloric acid yielded diethylenetriammonium structure is determined by a complex framework of hydrogen hexachlororhodate [H3N(CHz)2NH2(CH2)2NH3] [RhCI,] (1).bonds between the hexachlororhodate anions and the diethyl-Dark red single crystals of the compound were grown under enetriammonium cations. hydrothermal conditions at a temperature interval of 180 "C to 125 "C in closed glass ampoules over several weeks (space grovp Keywords: Rhodium compounds; hexachlororhodates; diethyl-C2k, a = 30.956(4) A, b = 7.371(2) A, c = 12.9736(15) A , enetriammonium cation; hydrogen bonds; hydrothermal crys-/ 3 = 113.787(11)", Z = 8, 2385reflections with I > 0, tallization
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.