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By certification 
1、Chemical Name: Sodium Hexametaphosphate、Sodium Tetrapolyphosphate.
2、M. F. : (NaPO3)6
3、M. W. :611.17
4、Physical properties: White powder，density is 2.484（20℃），easily soluble in water，but nearly insoble in organic solution，it is absorbent to dampness in the air。absorbabsorbent to dampness. it easily chelate with metallicions such as Ca,Mg.
5、Quality standard:（GB1890-1989、FCC-Ⅳ）
6、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.
7、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.
2、M. F. : (NaPO3)6
3、M. W. :611.17
4、Physical properties: White powder，density is 2.484（20℃），easily soluble in water，but nearly insoble in organic solution，it is absorbent to dampness in the air。absorbabsorbent to dampness. it easily chelate with metallicions such as Ca,Mg.
5、Quality standard:（GB1890-1989、FCC-Ⅳ）
6、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.
7、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.
