Potassium Decamolybdate, K₂MO₁₀O₃₁.9H₂O

Potassium Decamolybdate, K₂MO₁₀O₃₁.9H₂O and 15H₂O, has been prepared.

Thiomolybdates, phosphomolybdates, arseniofoaolybdates, etc., are dealt with under the corresponding acids.