CAS 13812-81-2 Distrontium diphosphate - Materials / Alfa Chemistry

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Distrontium diphosphate

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Catalog Number

ACM13812812-1

CAS Number

13812-81-2

Product Name

Distrontium diphosphate

Structure

Category

Phosphors - Phosphor Materials

Synonyms

distrontium diphosphate;Distrontium pyrophosphate;Strontium diphosphate;Strontium metaphosphate oxide;Strontium pyrophosphate

IUPAC Name

distrontium phosphonato phosphate

Molecular Weight

349.183322

Molecular Formula

O₇P₂Sr₂

Canonical SMILES

[O-]P(=O)([O-])OP(=O)([O-])[O-].[Sr+2].[Sr+2]

InChI Key

QGKBPWOLFJRLKE-UHFFFAOYSA-J

Purity

96%

Application

Distrontium diphosphate serves as an excellent host material for phosphors, exhibiting varying emission properties when doped with different elements, including rare earths. For instance, doping it with Europium (Eu2+) results in a blue emission, while doping with Bismuth (Bi2+) yields a red phosphor. With the chemical formula Sr2P2O7 and a molecular weight of 349.1833 g/mol, Distrontium diphosphate is a versatile compound identifiable by its CAS number 765305-66-6. It can be synthesized through a solid-state reaction involving the decomposition of dibasic orthophosphate or via the precipitation of a soluble magnesium salt in conjunction with pyrophosphoric acid. These methods yield a phosphor material that transforms to a hemihydrate form at elevated temperatures, with further decomposition and phase transitions occurring at specific temperatures. The orthorhombic β-Sr2P2O7 structure, characterized by specific unit-cell parameters, provides two distinct sites for Sr2+ ions, facilitating its use in various applications.

EC Number

237-461-4

Exact Mass

349.72300

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