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Europium (III) Phosphate

Europium (III) phosphate - an inorganic compound, a salt of europium and phosphoric acid with the formula EuPO 4 , white crystals with a yellowish tint, forms a crystalline hydrate .

Europium Phosphate
Are common
Systematic
name
Europium (III) Phosphate
Traditional namesEuropium phosphate; europium orthophosphate
Chem. formulaEuPO 4
Physical properties
conditionwhite with a yellowish sheen crystals
Molar mass246.94 g / mol
Thermal properties
Mol heat capacity112 J / (mol · K)
Education enthalpy-1778 kJ / mol
Classification
Reg. CAS number13537-10-5
Pubchem
Reg. EINECS number
SMILES
Inchi
UN number236
Chemspider

Getting

  • Heating of europium (III) oxide with ammonium hydrogen phosphate :
Eu2O3+2(NHfour)2HPOfour→950oC2EuPOfour+fourNH3+3H2O{\ displaystyle {\ mathsf {Eu_ {2} O_ {3} +2 (NH_ {4}) _ {2} HPO_ {4} \ {\ xrightarrow {950 ^ {o} C}} \ 2EuPO_ {4} + 4NH_ {3} + 3H_ {2} O}}}  

Physical Properties

Europium (III) phosphate forms white crystals with a yellowish tinge of a monoclinic syngony , the cell parameters are a = 0.6647 nm, b = 0.6867 nm, c = 0.6337 nm, β = 103.66 °.

Forms crystalline hydrate EuPO 4 • n H 2 O, which completely loses water at 600 ° C.

Literature

  • Manual on inorganic synthesis: B 6 tons / Ed. Brower G. .. - M .: Mir, 1985. - T. 4. - 447 p.



Source - https://ru.wikipedia.org/w/index.php?title=Phosphate_Europe ( III )&oldid = 80372245


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Clever Geek | 2019