distrontium diphosphate
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- $167 - $502.39
- 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
2 prices
Selected condition：
Brand
- American Custom Chemicals Corporation
- Sigma-Aldrich
Package
- 5MG
- 25g
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberCHM0312685
- Product descriptionDIPHOSPHORIC ACID STRONTIUM SALT EUROPIUM-DOPED 95.00%
- Packaging5MG
- Price$502.39
- Updated2021-12-16
- Buy
- ManufacturerSigma-Aldrich
- Product number773921
- Product descriptionStrontium pyrophosphate powder, -200mesh, 99.9% trace metals basis
- Packaging25g
- Price$167
- Updated2023-01-07
- Buy
| Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|
| American Custom Chemicals Corporation | CHM0312685 | DIPHOSPHORIC ACID STRONTIUM SALT EUROPIUM-DOPED 95.00% | 5MG | $502.39 | 2021-12-16 | Buy |
| Sigma-Aldrich | 773921 | Strontium pyrophosphate powder, -200mesh, 99.9% trace metals basis | 25g | $167 | 2023-01-07 | 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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