White or light red crystalline powder, soluble in alcohol, ether, benzene, trichloromethane and petroleum ether; Dissolved in water, the solution appears red when it meets ferrite. Melting point range: 70-72°C; Moisture: < 0.50%; Free chlorine: < 0.001%; Sulfate: < 0.005%; Heavy Metal: < 0.005% 1. Its appearance is white or light pink crystalline powder. 2. Easily soluble in...