No.

Specifications

Tech Grade

Food Grade

Wet

Hot

1

 Main content NH4H2PO4   % ≥

98.0

99.0

99.0

2

    P2O5   Phosphorus pentoxide   % ≥

60.5

61.0

61.0

3

        Nitrogen, as N % ≥

11.5

12.0

12.0

4

     PH of 1% solution

4.0-5.0

4.2-4.8

4.3-5.0

5

 Water insoluble   % ≤

0.3

0.1

0.10

6

   Moisture      % ≤

0.5

0.5

0.20

7

     Arsenic, as AS       % ≤

-

0.005

0.0003

8

          Fluoride, as F   % ≤

-

0.02

0.001

9

     Heavy metal, as Pb  % ≤

-

0.005

0.001

10

    Sulphates, as SO4  % ≤

1.2

0.9

--

11

    Pb        % ≤

0.0004

12

Apperance

White crystalline free flowing solid