| Cas
number
:- |
7757-83-7 |
| Description
:- |
White
crystals or Crystalline Powder |
| Melting
point :- |
884o
|
| Solubility
:- |
20 gms in 100 ml at 20o.
42.5 gms in 100 ml at 100oc.
Virtually insoluble in ethanol, methanol and
most organic solvents.
|
| Requirements
:- |
Min.
assay (after drying) 99.5%
pH of 5% solution 5.2 -9.2 at 25oc
|
Maximum
Limits of Impurities:-
| Insoluble
matter |
0.01% |
| Loss
on Ignition |
0.5% |
| Chloride(Cl) |
0.001% |
| Nitrogen
Compounds(N) |
0.001% |
| Phosphate(PO4) |
0.001% |
| Heavy
metals(asPb) |
2ppm |
| Iron(Fe) |
0.0002% |
| Copper(Cu) |
0.0002% |
| Calcium(Ca) |
0.01% |
| Magnesium(Mg) |
0.001% |
| Potassium(K) |
0.01% |
| Oxidizing
Substances |
No
Reaction |
| Reducing
Substances(O) |
0.002% |
| Mesh
sizes |
10-30
mesh |
|
10-60
mesh |
|
10-80
mesh |
|
