distrontium diphosphate
- CAS No.
- 13812-81-2
- Chemical Name:
- distrontium diphosphate
- Synonyms
- Strontium diphosphate;distrontium diphosphate;Strontium pyrophosphate;Distrontium pyrophosphate;Strontium metaphosphate oxide;distrontium,phosphonato phosphate;Strontium pyrophosphate powder, -200 mesh, 99.9% trace metals basis
- CBNumber:
- CB5909418
- Molecular Formula:
- H6O7P2Sr
- Molecular Weight:
- 267.61
- MOL File:
- 13812-81-2.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/4/23 13:52:06
| Melting point | >380°C |
|---|---|
| form | powder |
| EPA Substance Registry System | Diphosphoric acid, strontium salt (1:2) (13812-81-2) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26 |
| WGK Germany | 3 |
distrontium diphosphate Chemical Properties,Uses,Production
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.
Uses
Strontium pyrophosphate has long been used as a matrix for phosphors used in fluorescent lamps in the lamp industry. These phosphors have strong absorption in the near UV region, which is suitable for excitation of ultraviolet light-emitting diodes (UV-LEDs).
distrontium diphosphate Preparation Products And Raw materials
Raw materials
Preparation Products
distrontium diphosphate Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Alfa Chemistry | United States | 24072 | 58 | Inquiry | |
| Riedel-de Haen AG | 800 558-9160 | United States | 6825 | 87 | Inquiry |
| Energy Chemical | 021-58432009 400-005-6266 | China | 44843 | 58 | Inquiry |
| Sigma-Aldrich | 021-61415566 800-8193336 | China | 51471 | 80 | Inquiry |
| Shaanxi Dideu Newmaterial Co., Ltd. | 029-63373950 15353716720 | China | 10011 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| Alfa Chemistry | 58 |
| Riedel-de Haen AG | 87 |
| Energy Chemical | 58 |
| Sigma-Aldrich | 80 |
| Shaanxi Dideu Newmaterial Co., Ltd. | 58 |
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