... relative density is 1.62 (20 °C) and melting point 73.3-76.7 °C. It dissovles in water, the aqueous ... . 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 ...