No.	Index	Industrial grade	Food grade
1	Main content %≥	98.0	98.0
2	P2O5  %≥	49.0	49.0
3	pH of 1% water solution	8.8-9.2	9.0-9.4
4	Water insoluble  %≤	0.1	0.1
5	Arsenic, as As  %≤	-	0.0003
6	Fluoride, as F    %≤	-	0.003
7	Heavy metal, as Pb  %≤	-	0.001
8	Sieve test(Through 60 mesh) %≥	90.0	90.0

Application: Used as soft water agent for boiler. For food grade, it is mainly used as additive agent, pH adjustable agent.

Packaging: 25kg/50kg in plastic woven bag with PE lining. Stored in ventilated and dry place.