... . The relative density is 1.62 (20 °C) and melting point 73.3-76.7 °C. It dissovles in water, ... skin. Uses: used in metallurgy, chemical industry, textile, printing and dyeing, paper making, electrical ,mechanical,water softeners, cleaning detergents; ... sugar juice purification agent, photographic developer, silk fabric enhancer and rubber latex coagulantin. Also, it was applicated in pharmaceutical ...