Physical properties ：White microdot powder with luster，melting point at 622℃，easily soluble in water ，with remarkable chelating ability to some metal ions such as Ca2+、Mg2+，can soften hard water，change suspension into solution，alkalescent，without causticity。5、Quality standard: (QB1034-1991、FCC-Ⅳ、GB/T9983-2004)
   6、Usage:Used as moisture conservative. Applied to can, fruit drinks, milk products, vegetable protein drinks, instant noodles, meat products, and so on.
7、Packing: It is packed with ployethylene bags as line-r , and a woven bag as the outer layer. The net weight of each bag is 25kg.
8、Storage and transport: It should be stored in a dry . ventilative and clean warthouse; kept away from moisture and hot, Furthermore, it should be stored separstely from poisonous Substances