Synonym: stpp
Formula: na5p3o10
M.W.: 368
Cas no.: 7758-29-4
Grade: tech.grade
Description: white granular or powder


 

No	Specifications	Technical Grade	Food Grade
1	Appearance	White powder	White powder
2	Main content	94.0% min.	94.0% min.
3	P2O5	57.0% min.	57.0% min.
4	Water insoluble	0.1% max.	0.05% max.
5	Iron, as Fe	0.015% max.	0.01% max.
6	pH of 1% water solution	9.2-10.0	9.5-10.0
7	Density(g/cm 3 )	0.8-1.0	0.8-1.0
8	Heavy metal, as Pb	-	0.001% max.
9	Arsenic, as As	-	0.0003% max.
10	Fluoride ,as F	-	0.003% max.
11	Chloride, as Cl	-	0.025% max.