Description
Ammonium molybdate tetrahydrate
ACS reagent, 81.0-83.0% MoO3 basis
Synonym(s):
Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate
Linear Formula:
(NH4)6Mo7O24 · 4H2O
CAS Number:
12054-85-2
Molecular Weight:
1235.86
EC Number:
234-320-9
MDL number:
MFCD00167059
PubChem Substance ID:
329770925
NACRES:
NA.21
PROPERTIES
grade
ACS reagent
Quality Level
300
Assay
81.0-83.0% MoO3 basis
form
crystalline
reaction suitability
reagent type: catalyst
core: molybdenum
impurities
≤0.005% Insoluble matter
density
2.498 g/mL at 25 °C (lit.)
anion traces
arsenate, phosphate, and silicate (as SiO2): ≤0.001%
chloride (Cl-): ≤0.002%
nitrate (NO3-): passes test (limit about 0.003%)
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.02%
cation traces
Mg: ≤0.005%
heavy metals: ≤0.001% (as lead)
storage temp.
room temp
SMILES string
N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O
InChI
1S/7Mo.6H3N.10H2O.18O/h;;;;;;;6*1H3;10*1H2;;;;;;;;;;;;;;;;;;/q;;;;3*+2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-6
InChI key
FIXLYHHVMHXSCP-UHFFFAOYSA-H
General description
Ammonium molybdate tetrahydrate (AMT) is a molybdenum salt, often employed in cryo-negative staining that helps to identify particles while preserving the material. As a catalyst, it is used to desulfurize thiophene and its derivatives.
Application
Ammonium molybdate tetrahydrate can be used as:
- A molybdenum source in the synthesis of sodium molybdate dihydrate (Na2MoO4·2H2O).
- A molybdenum source in the synthesis of nickel molybdate nanorods (NiMoO4) by co-precipitation method in the presence of nickel benzoate as a nickel source.
- A precursor in the synthesis of Mn-MoS2 (MMS). MMS is employed in the production of MMS/rGO (reduced graphene oxide) composite that exhibits the highest rhodamine B (RhB) degradation efficiency.
- A catalyst in the synthesis of PVDF (polyvinylidene fluoride) catalytic microcapsules. PVDF is a heterogeneous catalyst for the selective oxidation of benzyl alcohol to benzaldehyde.
Packaging
100, 500, 500 g
1 kg in poly bottle
2.5 kg in poly drum
Quality
May contain darkened ammonium molybdate crystals that are soluble in water.
SAFETY INFORMATION
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable