distrontium diphosphate
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- ₹10229.63
- Product name: distrontium diphosphate
- CAS: 13812-81-2
- MF: H6O7P2Sr
- MW: 267.61
- EINECS:237-461-4
- MDL Number:MFCD00799869
- Synonyms:Strontium diphosphate;Strontium metaphosphate oxide;Strontium pyrophosphate;distrontium diphosphate ;Distrontium pyrophosphate;distrontium,phosphonato phosphate;Strontium pyrophosphate powder, -200 mesh, 99.9% trace metals basis
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Selected condition:
Brand
- Sigma-Aldrich(India)
Package
- 25G
- ManufacturerSigma-Aldrich(India)
- Product number773921
- Product descriptionStrontium pyrophosphate powder, -200?mesh, 99.9% trace metals basis
- Packaging25G
- Price₹10229.63
- Updated2022-06-14
- Buy
Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|
Sigma-Aldrich(India) | 773921 | Strontium pyrophosphate powder, -200?mesh, 99.9% trace metals basis | 25G | ₹10229.63 | 2022-06-14 | Buy |
Properties
Melting point :>380°C
form :powder
EPA Substance Registry System :Diphosphoric acid, strontium salt (1:2) (13812-81-2)
form :powder
EPA Substance Registry System :Diphosphoric acid, strontium salt (1:2) (13812-81-2)
Safety Information
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Description
Strontium pyrophosphate has the molecular formula of Sr2P2O7 and the molecular weight of 349.1833 g/mol.Its CAS number is 765305-66-6. 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:
2SrHPO4 + heat ? Sr2P2O7 +H2O
SrCl2 (aq) +H4P2O7 (aq) ? Sr2P2O7 (solid) + 2HCl (aq)
The solution method produces a hemihydrate, Sr2P2O7·1/2H2O. This salt decomposes at 575°C to form β-Sr2P2O7. The transition to the high temperature form, α-Sr2P2O7 takes place at about 760–780°C.
In the Sr2P2O7 system, the unit-cell parameters of orthorhombic β-Sr2P2O7 are: a = 8.9839?, b = 13.163 ?, and c = 5.403 ?. The crystallographic data of Sr2P2O7 are reported to contain two types of sites for Sr2+ ions in the unit cell.
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