Molybdic Acid
H2 Mo O4 • H2O

{Merck Index - © 1952 by Merck & Co., Inc.}

Molybdic Acid: H2MoO4 • H2O; mol. wt. 179.98. Mo 53.32%, MoO3 79.98%. Anhydrous form 89.99%, H2O 10.06%. For the anhydrous: Mo 59.24%, MoO3 88.88%, H 1.24%. Can also be obtained without H2O.

White powder. d. 3.1. Sparingly soluble in cold, more in hot water; soluble in NH4OH, H2SO4, fixed alkalies.

Molybdic Acid: 85%. Consists largely of an ammonium molybdate. Contains 84-86% MoO3. It is the most widely used form of molybdic acid."

White or slightly yellow powder. Insoluble or partly soluble in water; soluble in ammonia or solns. of fixed alkali hydroxides.

Use: Principally for the determination of phosphorus or phosphate and lead; also in glazes for ceramics.

Grades available: Reagent, technical.


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