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:
Assay:
≥85.0% MoO3 basis
Form:
powder
Grade:
ACS reagent
grade
ACS reagent
Quality Level
vapor density
6.2 (vs air)
assay
≥85.0% MoO3 basis
form
powder
reaction suitability
reagent type: 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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Made by molybdenum.
Lennartson A.
Nature Chemistry, 6(8), 746-746 (2014)
Hybrid Fabric/Molybdic Acid Modified Phenolic Resin Composites with Improved Anti-wear Properties.
Yang M, et al.
Tribology Transactions (2015)
Effect of high-temperature shock-wave compression on few-layer MoS2, WS2 and MoSe2.
Vasu K, et al.
Chemical Physics Letters, 582, 105-109 (2013)