| Customization: | Available |
|---|---|
| CAS No.: | 7558-80-7 |
| Formula: | Nah2po4 |
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Chemical formula: NaH2PO4 2H2O
Molecular weight: 120.005
Properties: White powder or white crystal, the melting point is 190 centigrade. It is soluble in water showing acidity. It decompounds sodium pyrophosphate anhydrous at 225-250 centigrade, and becomes sodium metaphosphate at 350-400 centigrade. It is slightly hygroscopic.
| ITEM | SPEC | RESULT |
| CONTENT(Na2HPO4.12H2O) | 98%MIN. | 99.5% |
| PH VALUE(10g/L) | 4.1-4.7 | 4.5 |
| INSOLUBLE MATTER IN WATER | 0..2%MAX. | 0.01% |
| HEAVY METALS,as Pb | 0.001%MAX | <0.001% |
| As | 0.0003%MAX | 0.0002% |
| CHLORIDES, as Cl | 0.05%MAX | 0.015% |
| FLUORIDE as F | 0.005%MAX | 0.002% |
| Fe | 0.05%MAX | 0.001% |
| Dry Reduction | 2.0%MAX | 0.06% |
| APPEARANCE | WHITE POWDER | WHITE POWDER |
| Item No. | SPECIFICATIONS | Standard | Results |
| 1 | NAH2PO4.2H2O % ≥ | 98.0 | 99.1 |
| 2 | Sulphates, as So4 % ≤ | 0.4 | 0.35 |
| 3 | PH of 1% solution |
4.2-4.8 | 4.3 |
| 4 | water insoluble % ≤ |
0.1 | 0.05 |
| 5 | Chloride(As Cl) % ≤ | 0.04 | 0.035 |
| 6 |
Heavy metals, as Pb % ≤ | 0.05 | 0.046 |
| 7 | Fluoride, as F % ≤ | 0.005 | 0.0025 |
| 8 | Iron Fe % ≤ | 0.05 | 0.035 |
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