Sodium Hexametaphosphate
1,Formula: Heterogenous mixtures of sodium salts of linear condensed polyphosphoric acids of general formula H (n + 2) P n O (3n + 1) where ‘n’ is not less than 2
2,Formula Weight: (102)n
3,CAS: [68915-31-1]; [10361-03-2]
4,Einecs: 272-808-3
4, Specificity: No color in the shape of glass, can melt in water, strong vaporizes. It will change into Positive nitrate in the warm water, Acidity and Alkaline aqua.
6,H.S. Code: 28353911 CIQ Checking: Statutory Inspection
Name of index |
|
FCC-V |
E452(i) |
Description |
|
Colourless or white, transparent platelets, granules, or powders |
|
Identification |
|
Pass test |
|
pH of a 1 % solution |
|
-- |
3.0-9.0 |
Solubility |
|
-- |
Very soluble in water |
P2O5 Content(ignited basis) |
% |
60.0-71.0 |
60.0-71.0 |
Water insoluble |
≤% |
0.1 |
0.1 |
Fluoride |
≤% |
0.005 |
0.001(expressed as fluorine) |
Loss on ignition |
≤% |
-- |
1 |
As |
≤mg/kg |
3 |
1 |
Cadmium |
≤mg/kg |
-- |
1 |
Mercury |
≤mg/kg |
-- |
1 |
Lead |
≤mg/kg |
4 |
1 |
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