Item

Industrial Grade

Food Grade

Na5P3O10

94.0% min.

94.0% min.

P2 O 5

57.0% min.

57.0% min.

Water Insoluble Matter

0.15% max.

0.05% max.

Iron (Fe)

0.015% max.

0.015% max.

PH (1% water solution)

9.2 - 10.0

9.5 - 10.0

Pb

/

0.001% max.

As

/

0.0003% max.

F

/

0.003% max.

Whiteness

90% min.

90% min.

Ignition Loss

1.0

/

Density

0.35 - 0.95 g/cm3

0.35 - 0.95 g/cm3

Phase I

10 - 30

10 - 30