|
chentianfang at brightcn.net
Molecular formula: (NaPO3)6
Molecular weight: 611.82
Properties:
Transparent glass-like powder or scaly solid , and relative density is 2.484,high deliquescence in air , dissolve in water: 973.2g per 1L water at 20°C, PH of 1% solution is 5.5-6.5,not dissolve in organic solvent , hydrolyze to positive phosphate in neuter mediums.
Quality index:
|
Item
|
Unit
|
Index
|
|
Total phosphate ( as P2O5)
|
%
|
≥68.0
|
|
Inactive phosphate ( as P2O5)
|
%
|
≤7.5
|
|
water insoluble matter
|
%
|
≤0.06
|
|
Fe(Fe)
|
%
|
≤0.05
|
|
PH
|
-
|
5.8-6.5
|
|
As (As)
|
%
|
≤0.0003
|
|
Heavy metals( as Pb)
|
%
|
≤0.001
|
|
Fluoride ( as F)
|
%
|
≤0.003
|
Uses:
1,Mainly used in circulating water treatment as flotation agent and dispersant
2,As preservative used in foods .
3,Widely used in mining ,artesian well ,textiles,printing and dyeing and so on .
Packing: 25kg/PE bag lined composite water-proof kraft bag |
