| CHEMICAL
FORMULA：Na2PO3F M.W.:
143.95
DESCRIPTION：small achromaticity crystal or white powder. Decompose in wet air.
Dissolve in water.
| SPECIFICATION |
TOOTHPASTE GRADE |
HG2763-1996 |
|
ITEMS |
USP-27 |
CHINA STANDARD |
|
assay（Na2PO3F）
％ |
91.7-100.5％ |
≥93％ |
|
Coalescent
fluorin ％ |
/ |
≥12.3％ |
|
dissociate
fluorin ％ |
≤1.2％ |
≤1.2％ |
|
assemble
fluorin
％ |
/ |
≥12.7％ |
|
arseni
％ |
≤0.0003％ |
≤0.0003％ |
|
PH
value（20g/Lsolution） |
6.5-8.0 |
6.5-8.0 |
|
Loss
on drying
％ |
≤0.2％ |
≤0.2％ |
|
volatilization
％ |
Eligible |
/ |
|
Heavy
metal
％ |
≤0.005％ |
≤0.005％ |
|
Middle Control Item |
|
White
degree ％ |
≥80％ |
≥80％ |
|
Particle
size
(micron)
|
100-200(90％) |
100-200(90％) |
|
Store
period
|
One year |
One year |
|
Provide reference |
|
Produce
technics |
USP-23NaF工 |
Food grade |
|
Packing |
25kg/bag |
25kg/bag |
Remark：We may make special specification according to customer’s requires. |
