White or colorless crystals, effloresce in air, soluble in water easily but not in organic solvent. Water solution is alkaline, PH of 1% water solution is 12.1, relative density is 1.62, melting point is73.4℃.
Technical Specifications:
S/N.
SPECIFICATIONS
INDUSTRIAL GRADE
FOOD GRADE
Grade one
Qualified
1
Content (Na3PO4.12H2O)
≥
98
95
98
2
P205
≥
18.3
17.75
18.3
3
Sulfate, as SO4
≤
0.5
0.8
0.2
4
Chloride, as CI
≤
0.4
0.5
0.02
5
Water insoluble
≤
0.1
0.1
0.05
6
Sodium oxide, as Na20
%
16-19.0
15.5-19.0
15-19
7
Heave metals, as Pb
≤
0.001
8
Arsenic, as As
≤
0.01
0.0003
Use:
Used as soft water agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware manufacturing, and so on.
Packing
Plastic knit bag, Net weight 25kg or 50kg. Storage in ventilated and dry place.
