Rhodium trichloride 
 English name: Rhodium (Ⅲ) Chloride HydrateCAS: 10049-07-7 Molecular formula: RhCl3 · nH2O MW: 209.26 Executive Standard: Q/3201DR04-2005 original purity greater than 99.99% purity rhodium powder traits reddish-brown crystalline powder, soluble in water , hydrochloric acid, alcohol and alkaline solution, by the strong heat loss of crystal water becomes insoluble, and thus decomposition of rhodium and chlorine. Uses: Important chemical catalyst for automobile exhaust purification, and the pharmaceutical industry