Item

Industrial Grade

Food Grade

Total phosphates (as P2 O 5 )

68% min.

68% min.

Inactive Phosphates (as P2 O 5 )

7.5% min.

7.5% min.

Iron (Fe)

0.05% max.

0.05% max.

PH

5.8 - 6.5

5.8 - 6.5

Solubility

Pass

Pass

Pb

/

0.001% max.

As

/

0.0003% max.

F

/

0.003% max.

Water Insoluble Matter

0.05% max.

0.06% max.

Polymerization

9 - 21

9 - 21

Fineness

60 - 80 mesh

60 - 80 mesh