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Description

Molybdic Acid · CAS 7782-91-4 · H2-Mo-O4. UNII I96N991J1N. Physical Description: V (@25 °C).

Identification

CAS Registry Number	7782-91-4
PubChem CID	82208
Molecular formula	H2-Mo-O4
IUPAC name	dihydroxy(dioxo)molybdenum
UNII (FDA)	I96N991J1N

Computed Descriptors

Molecular Weight	161.96
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	163.900712
Monoisotopic Mass	163.900712
Topological Polar Surface Area	74.6
Heavy Atom Count	5
Formal Charge	0
Complexity	81.3

Physical & Chemical Properties

Physical Description	V (@25 °C)

Physical description & handling notes

• Dry Powder
• Monohydrate: White solid; Slightly soluble in cold water, more soluble in hot water; [Merck Index] Yellowish odorless powder; Insoluble in water; [MSDSonline]
• White powder with an ammoniacal odor; Soluble in water; [Alfa Aesar MSDS]

Regulatory Status

GHS notification summary	57.3% (125 / 218)

GHS Hazard Classification

GHS notification summary	57.3% (125 / 218)
Reported hazard statements	H319 (42.2%), H335 (42.2%), H373 (31.2%), H351

Documented Uses

• Used in chemical synthesis, for extraction, refining, and processing of metals, as a coloring agent, construction materials additive, flame retardant, process regulator, catalyst, and in the production of other molybdenum compounds and alloys; [IUCLID] Used to make catalysts, activated charcoal impregnants, molybdenum compounds, base metals and alloys, and large scale and fine chemicals, to formulate lubricants-lubricant additives-greases, coatings-paints-thinners, fillers-putties-plasters, metal surface treatment
• Electroplating [Category: Plate]
• Soldering [Category: Heat or Machine]
• Painting (Pigments, Binders, and Biocides) [Category: Paint]
• Metal Extraction and Refining [Category: Industry]
• All Other Basic Organic Chemical Manufacturing

Synonyms

Molybdic acid; 7782-91-4; Molybdic(VI) acid; Molybdate (MoO42-), dihydrogen, (T-4)-; I96N991J1N; CHEBI:25371; RefChem:819194; 231-970-5; dihydroxy(dioxo)molybdenum; Molybdicacid; Diammonium dimolybdate; UNII-I96N991J1N; H2MoO4; EINECS 231-970-5; MFCD00036287; Molybdate (MoO42-), dihydrogen, (beta-4)-

Frequently Asked Questions

What are the CAS number and molecular formula of Molybdic Acid?

CAS 7782-91-4; molecular formula H2-Mo-O4; molecular weight — g/mol.

What other names is Molybdic Acid known by?

Molybdic acid, 7782-91-4, Molybdic(VI) acid, Molybdate (MoO42-), dihydrogen, (T-4)-, I96N991J1N, CHEBI:25371.

Is Molybdic Acid classified as hazardous?

57.3% of GHS notifications report no hazard classification (125 of 218).

What are the key physical properties of Molybdic Acid?

Physical Description: V (@25 °C).

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.