232084
Molybdic acid
≥85.0% MoO3 basis, ACS reagent
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About This Item
CAS Number:
NACRES:
NB.24
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
231-970-5
MDL number:
eCl@ss:
32039090
Assay:
≥85.0% MoO3 basis
Form:
powder
Grade:
ACS reagent
grade
ACS reagent
Quality Segment
vapor density
6.2 (vs air)
assay
≥85.0% MoO3 basis
form
powder
reaction suitability
reagent type: inorganic catalyst
core: molybdenum
impurities
≤0.01% insol. dil. NH4OH
solubility
water: insoluble
density
3.1 g/mL at 25 °C (lit.)
anion traces
AsO43-, PO43- and SiO2: ≤0.001%, chloride (Cl-): ≤0.002%, phosphate (PO43-): ≤5 ppm, sulfate (SO42-): ≤0.2%
cation traces
heavy metals: ≤0.003%
SMILES string
O[Mo](O)(=O)=O
InChI
1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
InChI key
VLAPMBHFAWRUQP-UHFFFAOYSA-L
General description
Molybdic acid is the hydrated form of molybdenum trioxide. It is used in the synthesis Froehde reagent.
Application
Molybdic acid can be used:
- In the preparation of silica-supported molybdic acid catalyst for the synthesis of pyrano [2,3-c] chromene derivatives by condensation of aldehydes, malononitrile, and 4-hydroxycoumarin.
- In the synthesis of Froehde reagent for the presumptive identification of alkaloids like opioids.
- As a molybdenum source in the preparation of MoSe2.
Other Notes
Consists largely of an ammonium molybdate
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Storage Class
13 - Non Combustible Solids
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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