Chemical formula: NaCNAppearance: White crystals or powder, hygroscopicSmell: A faint bitter almond scent (but about 40% of people cannot smell it due to genetic differences)Solubility: Highly soluble in water, and the aqueous solution is strongly alkaline

Routes of contact: Inhalation, ingestion and skin contact are all dangerous.Protective measures:When operating, a gas mask, chemical protective clothing and gloves should be worn.Handle in a fume hood and avoid contact with acids (which will release highly toxic HCN gas).First aid measures:Immediate

Industry: Electroplating (gold and silver plating), metal smelting (gold and silver extraction).Chemical synthesis: Manufacturing pesticides, plastics, etc. (Strict control is required).Laboratory: Rarely used as a reagent.