Samarium(III) phosphate

Samarium(III) phosphate is an inorganic compound, with the chemical formula of SmPO₄. It is one of the phosphates of samarium.

Preparation

Samarium(III) phosphate can be obtained by reacting sodium metaphosphate with any soluble samarium(III) salt:

$𝖲𝗆𝖢{𝗅}_{\mathrm{𝟥}}\mathsf{+}𝖭𝖺𝖯{𝖮}_{\mathrm{𝟥}}\mathsf{+}{𝖧}_{\mathrm{𝟤}}𝖮\stackrel{}{\to }\mathrm{𝟤}𝖲𝗆𝖯{𝖮}_{\mathrm{𝟦}}\mathsf{\downarrow }\mathsf{+}𝖭𝖺𝖢𝗅\mathsf{+}\mathrm{𝟤}𝖧𝖢𝗅$

Samarium(III) phosphate can also be obtained by reacting phosphoric acid and samarium(III) chloride.

Properties

Samarium(III) phosphate reacts with sodium fluoride at 750 °C to form Na₂SmF₂PO₄. Samarium(III) phosphate forms crystals of the monoclinic crystal system, with space group P2₁/n, and lattice parameters a = 0.6669 nm, b = 0.6868 nm, c = 0.6351 nm, β = 103.92 °, Z = 4.