Parameter

Index

Industrial Grade

Food Grade

P2O5

68% min

68% min

P2O5 Nonavailble

7.5% max

7.5% max

Water Insoluble

0.05% max

0.06% max

Fe

0.05% max

0.05% max

PH Value

5.8-7.0

5.8-6.5

As

-

3ppm max

Heavy Metals

-

10ppm max