• Source: Lanthanum oxysulfide

Lanthanum oxysulfide is an inorganic compound, a salt of lanthanum and hydrogen sulfide acid, with the formula La2O2S.




Synthesis


Calcination of lanthanum(III) sulfate in oxygen current at 750 °C:
La2(SO4)3 + O2 → La2O3·SO3 + 2SO3
The resulting product is reduced with hydrogen when heated:
La2O3·SO3 + 4H2 → La2O2S + 4H2O




Physical properties


The compound forms yellowish-white hexagonal crystals.




Uses


The compound is used as a laser host material.




References

Kata Kunci Pencarian:

• Kamus rumus kimia
• Lanthanum oxysulfide
• Gadolinium oxysulfide
• Lanthanide
• Lanthanide compounds
• Berkelium
• Phosphor
• Scintillator
• Gadolinium
• Neptunium
• Protactinium