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Technical Data Sheet Sodium phosphate dibasic dodecahydrate
Compound Information
Product Name:
Sodium phosphate dibasic dodecahydrate
CAS No.:
10039-32-4
Molecular Formula:
H25Na2O16P
Molecular Weight:
358.14
Storage:
Store at RT
Revision Date:
2026-04-15
Analytical Information
| Tests | Specifications |
|---|---|
| Solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| Anion Chloride | ≤200 ppm |
| Anion Sulfate | ≤500 ppm |
| Cation Iron (Fe) | ≤20 ppm |
| Reducing Substances | The color of permanganate is not completely discharged. |
| Related Substances Monosodium Phosphate | ≤ 2.5% |
| Purity | 98.5 - 102.5% |
| Identification Test A | 10% solution is slightly alkaline |
| Identification Test B | To pass test for LOD test |
| Identification Test C | Gives reaction of Phosphate |
| Identification Test D | Gives reaction of Sodium |
| Appearance | Colorless transparent crystals, very efflorescent |
| LOD | 57 - 61% (130 °C/4h) |
| Specification Reference | Meets EP Specifications |
| IR | Pass test |
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