Assay (K2HPO4) after drying, not less than..................................... 98,0 %

Appearance........................................................................................... p/t

Identity:

Phosphate............................................................................................ p/t.

Potassium............................................................................................. p/t.

pH of 1% solution.......................................................................... 8,7-9,4

Arsenic (as As), not more than........................................................ 3 ppm

Fluoride, not more than................................................................. 10 ppm

P2O5 content a.a.s...................................................................40,3-41,5 %

Loss on drying, not more than......................................................... 2,0 %

Insoluble substances, not more than............................................... 0,2 %

Cadmium, not more than................................................................ 1 ppm

Lead, not more than........................................................................ 2 ppm

Mercury (Hg), not more than........................................................... 1 ppm