1.01181
Ammonium heptamolybdate tetrahydrate
(ammonium molybdate) powder extra pure
Synonym(s):
Ammonium heptamolybdate tetrahydrate, Ammonium molybdate, Hexammonium heptamolybdate 4-hydrate
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About This Item
Linear Formula:
(NH4)6Mo7O24 · 4 H2O
CAS Number:
Molecular Weight:
1235.86
UNSPSC Code:
12352302
EC Index Number:
234-722-4
NACRES:
NB.21
MDL number:
Form:
solid
Quality Segment
form
solid
pH
5.3 (20 °C, 50 g/L in H2O)
mp
90 °C (Elimination of water of crystallisation)
solubility
400 g/L
density
2.498 g/cm3 at 20 °C
bulk density
800 kg/m3
storage temp.
2-30°C
SMILES string
[Mo].[N+H4].[O-2].O
InChI
1S/Mo.H3N.H2O.O/h;1H3;1H2;/q;;;-2/p+1
InChI key
XCOMAVCHADVANQ-UHFFFAOYSA-O
Application
- A Novel Hydro-Thermal Synthesis of Nano-Structured Molybdenum-Iron Intermetallic Alloys at Relatively Low Temperatures.: This study explores the hydro-thermal synthesis of nano-structured molybdenum-iron intermetallic alloys using ammonium heptamolybdate tetrahydrate, highlighting its application in advanced material synthesis (El-Geassy et al., 2023).
- Alternative Preparation of Improved NiMo-Alumina Deoxygenation Catalysts.: The research focuses on the use of ammonium heptamolybdate tetrahydrate in the preparation of NiMo-Alumina catalysts for deoxygenation reactions, emphasizing its role in catalytic chemistry (Priecel et al., 2020).
- Chromatographic identification of "green capping agents" extracted from Nasturtium officinale (Brassicaceae) leaves for the synthesis of MoO(3) nanoparticles.: This paper discusses the synthesis of MoO3 nanoparticles using ammonium heptamolybdate tetrahydrate and green capping agents, showcasing its relevance in green chemistry and nanotechnology (Shaheen & Ahmad, 2020).
- Preparation of h-MoO3 and α-MoO3 nanocrystals: comparative study on photocatalytic degradation of methylene blue under visible light irradiation.: The study investigates the photocatalytic properties of MoO3 nanocrystals synthesized from ammonium heptamolybdate tetrahydrate, highlighting its application in environmental chemistry for pollutant degradation (Chithambararaj et al., 2013).
- Novel MoO2/carbon hierarchical nano/microcomposites: synthesis, characterization, solid state transformations and thiophene HDS activity.: This research focuses on the synthesis of MoO2/carbon composites using ammonium heptamolybdate tetrahydrate, emphasizing its catalytic applications in hydrodesulfurization (HDS) of thiophene (Avendaño et al., 2013).
Analysis Note
Assay (precipitative titration): ≥ 99.0 %
Identity: passes test
Chloride (Cl): ≤ 0.002 %
Phosphate, Arsenate, Silicate (as PO₄): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.02 %
Fe (Iron): ≤ 0.002 %
Identity: passes test
Chloride (Cl): ≤ 0.002 %
Phosphate, Arsenate, Silicate (as PO₄): ≤ 0.002 %
Sulfate (SO₄): ≤ 0.02 %
Fe (Iron): ≤ 0.002 %
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Storage Class
13 - Non Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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