dipotassium phosphate trihydrate
chemical formula: k2hpo4.3h2o
molecular weight: 228.22
properties: white crystal. easily soluble in water, and slightly soluble in alcohol. and its water solution shows weak alkalinity.
specification:
specification |
tech grade |
high purity grade |
feed grade |
|
appearance |
white crystal |
|||
main contents |
%≥ |
98.00 |
98.00 |
97.00 |
phosphorus pentoxide, as p2o5 |
%≥ |
30.50 |
30.50 |
- |
potassium oxide, as k2o |
%≥ |
40.40 |
40.40 |
- |
water insoluble |
%≤ |
0.2 |
0.2 |
0.2 |
arsenic, as as |
%≤ |
0.005 |
0.0003 |
0.001 |
heavy metal, as pb |
%≤ |
0.005 |
0.001 |
0.003 |
lead, as pb |
%≤ |
- |
0.0002 |
- |
fluoride, as f |
%≤ |
0.05 |
0.001 |
0.05 |
ph value of 1% solution |
-- |
8.6-9.4 |
8.6--9.4 |
8.6-9.6 |