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1.01182

Ammonium heptamolybdate tetrahydrate

Name: Ammonium heptamolybdate tetrahydrate
Brand: MM

GR for analysis ACS,ISO,Reag. Ph Eur

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:

12054-85-2

Molecular Weight:

1235.86

UNSPSC Code:

12352302

EC Index Number:

234-722-4

NACRES:

NB.21

MDL number:

MFCD00167059

Form:

solid

Grade:

ACS reagent

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Properties

grade

ACS reagent

Quality Level

100

agency

reag. ISO, reag. Ph. Eur.

form

solid

specific analyte(s)

phosphate

technique(s)

photometry: suitable

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

Description

Application

A Novel Hydro-Thermal Synthesis of Nano-Structured Molybdenum-Iron Intermetallic Alloys at Relatively Low Temperatures.: This study outlines a novel hydro-thermal method for synthesizing molybdenum-iron intermetallic alloys using lower temperatures, highlighting a potential route for cost-effective and energy-efficient material production (El-Geassy et al., 2023).

Alternative Preparation of Improved NiMo-Alumina Deoxygenation Catalysts.: This research discusses an alternative method for preparing NiMo-alumina catalysts with enhanced deoxygenation properties, potentially useful for synthetic and petrochemical applications (Priecel et al., 2020).

Chromatographic identification of "green capping agents" extracted from Nasturtium officinale (Brassicaceae) leaves for the synthesis of MoO(3) nanoparticles.: The paper identifies plant-based capping agents for synthesizing molybdenum trioxide nanoparticles, contributing to greener nanotechnology practices (Shaheen & Ahmad, 2020).

Preparation of h-MoO3 and α-MoO3 nanocrystals: comparative study on photocatalytic degradation of methylene blue under visible light irradiation.: This study compares the efficiency of hexagonal and orthorhombic molybdenum trioxide nanocrystals in degrading methylene blue, offering insights into their photocatalytic behaviors (Chithambararaj et al., 2013).

Novel MoO2/carbon hierarchical nano/microcomposites: synthesis, characterization, solid state transformations and thiophene HDS activity.: The research introduces a new type of molybdenum dioxide-carbon composite material with applications in hydrodesulfurization, demonstrating significant industrial potential (Avendaño et al., 2013).

Analysis Note

Assay (as MoO₃): 81.0 - 83.0 %

Assay ((NH₄)₆Mo₇O₂₄ x 4 H₂O): ≥ 99.0 %

Insoluble matter: ≤ 0.005 %

Chloride (Cl): ≤ 0.0005 %

Nitrate (NO₃): passes test

Phosphate (PO₄): ≤ 0.0005 %

Phosphate, Arsenate, Silicate (as PO₄): ≤ 0.0005 %

Sulfate (SO₄): ≤ 0.005 %

Heavy metals (ACS): ≤ 0.001 %

Cu (Copper): ≤ 0.001 %

Fe (Iron): ≤ 0.0005 %

Mg (Magnesium): ≤ 0.005 %

K (Potassium): ≤ 0.005 %

Na (Sodium): ≤ 0.01 %

Pb (Lead): ≤ 0.001 %

Corresponds to ACS,ISO,Reag. Ph Eur

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Storage Class

13 - Non Combustible Solids

flash_point_f

Not applicable

flash_point_c