Hexaammonium molybdate

Catalog Number	ACM12027677-3
CAS	12027-67-7
Structure
Description	Ammonium heptamolybdate is the inorganic compound, normally encountered as the tetrahydrate, whose chemical formula is (NH4)6Mo7O24·4H₂O. It is a colorless solid, often referred to as ammonium paramolybdate or simply as ammonium molybdate, although “ammonium molybdate” can also refer to ammonium orthomolybdate, (NH4)2MoO4, and several other compounds. Potassium heptamolybdate, also obtained as the tetrahydrate, is very similar to the ammonium salt.
Synonyms	Hexaammonium molybdate;
Molecular Weight	588.04
Molecular Formula	H24Mo3N6O12
Melting Point	190ºC
Purity	98%
Density	2.498 g/cm³
Appearance	Colourless to light green crystalline solid
EC Number	234-722-4
Hazard Codes	Xi
MDL Number	MFCD00064633

Q&A

What is the molecular weight of Hexaammonium molybdate?

The molecular weight of Hexaammonium molybdate is 1073.67.

What are the synonyms of Hexaammonium molybdate?

The synonyms of Hexaammonium molybdate include Ammonium molybdate (para) hydrate, Molybdic acid, hexaammonium salt, and PHOSPHATE MONITOR REDUCTION REAGENT, among others.

What is the melting point of Hexaammonium molybdate?

The melting point of Hexaammonium molybdate is 190°C.

What is the form of Hexaammonium molybdate?

Hexaammonium molybdate is in liquid form.

Is Hexaammonium molybdate soluble in water?

Yes, Hexaammonium molybdate is freely soluble in water.

How is Hexaammonium molybdate prepared?

Hexaammonium molybdate is prepared by treating molybdenum oxide with excess ammonia in an aqueous solution.

What are the physical properties of Hexaammonium molybdate?

Hexaammonium molybdate is colorless, monoclinic crystal with a density of 2.276 g/cm3. It decomposes on heating and is soluble in water.

What are the uses of Hexaammonium molybdate?

Hexaammonium molybdate is used to prepare high purity grade molybdenum metal powder, for colorimetric analysis of phosphates and arsenates, for decorating ceramics, and as catalysts.

How does Hexaammonium molybdate react with lead chloride?

Hexaammonium molybdate reacts with lead chloride to form lead molybdate and ammonium chloride.

What is the specific gravity of Hexaammonium molybdate?

The specific gravity of Hexaammonium molybdate is 2.498.