Chemical properties Colorless monoclinic crystal system flake or columnar crystal, shiny. Soluble in water, ethanol, liquid ammonia, acetone, pyridine and liquid sulfur dioxide. Use as a polymerization catalyst for dyes and organic synthesis, for the separation of pesticides and defoliants, antibiotics, but also the raw material for the manufacture of cyanide, thiourea, ammonium thiocyanate is an auxiliary raw material for the manufacture of hydrogen peroxide. Used as dye, polymerization catalyst synthesized by Chemicalbook machine. Used for the separation of pesticides and antibiotics, analytical reagents, etc. It is also a raw material for the manufacture of cyanide, ferrocyanide and thiourea. Also used for zinc coating, printing and dyeing diffusion agent, plating additives. Uses: Verification and determination of trace iron, determination of silver and mercury, polymerization catalyst, separation of antibiotics, analysis of pesticide content, water quality analysis, preparation of thiocyanate and standard solution.