sodium thiocyanate（25kg PP bag）

White rhombohedral crystals or powder, with a relative density of 1.735 and a melting point of approximately 287℃. It is easily soluble in solvents such as water, ethanol, and acetone. The aqueous solution is neutral. When it reacts with ferric salts, it forms blood-red iron thiocyanate. It does not react with ferrous salts. When combined with concentrated sulfuric acid, it produces yellow sodium thiocyanate sulfate. When interacting with cobalt salts, it forms dark blue cobalt thiocyanate. When reacting with silver salts or copper salts, it produces white silver thiocyanate or black copper thiocyanate precipitate. It is easily deliquescent in air.
It is used as an additive for construction concrete, a grinding aid for cement, a solvent for acrylonitrile fiber spinning, a reagent for chemical analysis, a processing agent for color film, a defoliant for certain plants, and a weed killer for airport roads. It is also used as an intermediate for pharmaceuticals, intermediates for pesticide herbicides and insecticides, mineral processing agents, printing and dyeing, rubber processing, black nickel plating, and the manufacture of artificial mustard oil.