Molybdic acid , AR,≥85.0%MoO3basis , 7782-91-4

Synonym(s):
Molybdic acid about 85% MoO3

CAS NO.：7782-91-4

Empirical Formula: HMoO4-

Molecular Weight: 160.95

MDL number: MFCD00036287

EINECS: 231-970-5

PRODUCT Properties

• Melting point: 300 °C
• Density: 3.1 g/mL at 25 °C (lit.)
• vapor density: 6.2 (vs air)
• storage temp.: Store at +5°C to +30°C.
• solubility: slightly soluble in H2O; soluble in alkaline solutions
• form: white powder
• Specific Gravity: 3.1
• color: White powder
• Odor: Odorless
• PH: 3.46(1 mM solution);2.94(10 mM solution);2.43(100 mM solution)
• Water Solubility: 70 g/l (20 ºC)
• Merck: 13,6263
• Exposure limits: ACGIH: TWA 0.5 mg/m3; NIOSH: IDLH 1000 mg/m3
• CAS DataBase Reference: 7782-91-4(CAS DataBase Reference)
• EPA Substance Registry System: Molybdate (MoO42-), dihydrogen, (T-4)- (7782-91-4)

Description and Uses

Molybdic acid is used as a precursor in the production of ammonium molybdate tetrahydrate and molybdenum(IV) sulfide. The mixture of molybdic acid in concentrated sulfuric acid is called as Froehde reagent, which finds application in analytical chemistry for the detection of alkaloids.

Safety

• Symbol(GHS): GHS07,GHS08
• Signal word: Warning
• Hazard statements: H315-H319-H335-H373
• Precautionary statements: P280a-P304+P340-P405-P501a-P261-P305+P351+P338
• Hazard Codes: Xi,Xn
• Risk Statements: 36/37/38-48/20/22-36/37
• Safety Statements: 24/25-22-26
• WGK Germany: 3
• TSCA: Yes
• HS Code: 28111990