| Identification | Back Directory | [Name]
MAGNESIUM PYROPHOSPHATE | [CAS]
13446-24-7 | [Synonyms]
MAGNESIUMDIPHOSPHATE
MAGNESIUM PYROPHOSPHATE
dimagnesium pyrophosphate
Magnesium phosphate (pyro)
Diphosphoric acid,magnesium salt
Diphosphoric acid, magnesium salt
Diphosphoricacid,magnesiumsalt(1:2)
MAGNESIUM PYROPHOSPHATE ISO 9001：2015 REACH | [EINECS(EC#)]
236-595-0 | [Molecular Formula]
Mg2O7P2 | [MDL Number]
MFCD00049482 | [MOL File]
13446-24-7.mol | [Molecular Weight]
222.55 |
| Questions And Answer | Back Directory | [Preparation]
The preparation methods of magnesium pyrophosphate are as follows: 1. It is prepared by a double decomposition reaction of sodium pyrophosphate solution and magnesium chloride solution. 2. Magnesium ammonium phosphate hexahydrate (NH₄MgPO₄·6H₂O) is heated at above 600℃ for about 2 hours to produce magnesium diphosphate. Magnesium pyrophosphate can also be obtained by mixing an aqueous solution of sodium pyrophosphate with an aqueous solution of magnesium chloride. | [Uses]
Magnesium pyrophosphate is a colorless monoclinic crystal and can be used as a stabilizer in toothpaste and tooth powder. |
| Chemical Properties | Back Directory | [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 |
| Hazard Information | Back Directory | [Chemical Properties]
colorless; monoclinic [CRC10] | [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. |
|
| Company Name: |
Alfa Aesar
|
| Telephone: |
400-6106006 |
| Website: |
http://chemicals.thermofisher.cn |
| Company Name: |
Energy Chemical
|
| Telephone: |
400-0056266 |
| Website: |
www.energy-chemical.com |
|