| Customization: | Available |
|---|---|
| CAS No.: | 7558-79-4 |
| Formula: | Na2hpo4 |
|
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1,Formula: Na2HPO4; Na2HPO4·nH2O (n = 2,7 or 12)
2,Formula wt: anhydrous 141.96; Formula wt, dihydrate 177.99
3,CAS: anhydrous [7558-79-4]; CAS: dihydrate [10028-24-7]
5,Specificity: Colorless crystal, easily soluble in water, insoluble in ethanol, relative density 1.63,melting point 34.6°C,when heated to 180°C,it may lose crystal water, convert to anhydrous.
5,Packing: 25kg net paper bag or 1mt big bag with PE liner.
Name of index |
FCC-V |
E339(ii) |
pH of a 1 % solution |
-- |
8.4-9.6 |
|
Content(as dry base),≥% |
98.0 |
98.0 |
|
P2O5 Content(Anhydrous basis) ,% |
-- |
49.0-51.0 |
|
Lead, ≤% |
0.0004 |
0.0004 |
|
Water insoluble(Anhydrous basis),≤% |
0.2 |
0.2 |
|
Fluoride, ≤% |
0.005 |
0.001 |
|
Loss on drying, |
1,Anhydrous:≤5.0%; 2,Dihydrate:18.0%-22.0%. (120°C,4h) |
1,Anhydrous ≤5.0%, 2,Dihydrate ≤22.0% 3,Heptahydrate ≤50.0% 4,Dodecahydrate ≤61.0% (40°C,3h then 105°C,5h)) |
|
As,≤% |
0.0003 |
0.0003 |
|
Cd≤% |
-- |
0.0001 |
|
Hg ≤% |
-- |
0.0001 |
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