MAGNESIUM PYROPHOSPHATE
- CAS NO.：13446-24-7
- Empirical Formula: Mg2O7P2
- Molecular Weight: 222.55
- MDL number: MFCD00049482
- EINECS: 236-595-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:31:17
What is MAGNESIUM PYROPHOSPHATE?
Description
Magnesium pyrophosphate has the molecular formula of Mg2P2O7 and the molecular weight of grams per mole. It may be prepared by the solid-state reaction of the dibasic orthophosphate, or alternately by the precipitation of a soluble Mg salt with aqueous pyrophosphoric acid:? 2MgHPO4 (or MgNH4PO4) + heat0Mg2P2O7 +H2O (+NH3)? MgCl2 (aq)+H4P2O7 (aq)0Mg2P2O7 (solid)+2HCl (aq)? In the solution method, the result is the hexahydrate, Mg2P2O7·6H2O. This is a white powder with a CAS number of 13478-16-5 and a molecular weight of 245.4073 g/mol. Its density is 1.71 g/cm3 and it is relatively insoluble in water or ethanol but soluble in acids.
Chemical properties
colorless; monoclinic [CRC10]
Properties of MAGNESIUM PYROPHOSPHATE
| Melting point: | 1383℃ [HAW93] |
| Density | 2.56 g/mL at 25 °C(lit.) |
| form | Powder |
| color | White |
| Water Solubility | Soluble in dilute mineral acids. Insoluble in water. |
| Merck | 14,5684 |
Safety information for MAGNESIUM PYROPHOSPHATE
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for MAGNESIUM PYROPHOSPHATE
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