13446-24-7 Usage
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]
Check Digit Verification of cas no
The CAS Registry Mumber 13446-24-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,4 and 6 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 13446-24:
(7*1)+(6*3)+(5*4)+(4*4)+(3*6)+(2*2)+(1*4)=87
87 % 10 = 7
So 13446-24-7 is a valid CAS Registry Number.
InChI:InChI=1/2Mg.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4