| Cas
number
:- |
7758-11-4
|
| Composition
:- |
H
- 0.581%
K - 44.9%
O - 36.74%
P - 17.78%
|
| Description
:- |
White crystalline Powder Hygroscopic.
|
| Solubility
:- |
In
water 167 gm in 100 ml
Slightly soluble in alcohol
|
| Requirements
:-
|
Assay >= 98% K2HPO4
pH of 5% solution 8.5 - 9.6 at 25oc
|
Maximum
Limits of Impurities:-
| Insoluble
matter |
0.01% |
| Loss
on drying at 105oc |
1% |
| Chloride(Cl) |
0.003% |
| Nitrogen
Compounds(asN) |
0.001% |
| Sulfate(SO4) |
0.005% |
| Heavy
metals(Pe) |
5ppm |
| Iron(Fe) |
0.001% |
| Sodium(Na) |
0.05% |
|
