Apperance: Character pink monoclinic crystal.

Nature: pink to red monoclinic or triclinic crystals. Soluble in water, ethanol-soluble, methanol. Dehydration by heating at 41.5 °C. Turned into hexahydrate. It became monohydrate at 71 °C. It cannot burn itself. By high heat decomposition of toxic gases.

Use: Used as ceramic glaze, paint drying agent, also used for dyes

Safety: its dust can irritate the mucosa of eyes, nose, respiratory tract and gastrointestinal tract. Staff should be protected. Store in a cool, ventilated warehouse. Keep away from fires and heat sources and prevent moisture and rain.