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Merck

A7302

Ammonium molybdate tetrahydrate

ACS reagent, 81.0-83.0% MoO3 basis

Sinónimos:

Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate

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Fórmula lineal:
(NH4)6Mo7O24 · 4H2O
Número CAS:
12054-85-2
Peso molecular:
1235.86
NACRES:
NA.21
PubChem Substance ID:
329770925
UNSPSC Code:
12352302
EC Number:
234-320-9
MDL number:
MFCD00167059
Assay:
81.0-83.0% MoO3 basis
Grade:
ACS reagent
Form:
crystalline

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Nombre del producto

Ammonium molybdate tetrahydrate, ACS reagent, 81.0-83.0% MoO3 basis

InChI

1S/7Mo.6H3N.10H2O.18O/h;;;;;;;6*1H3;10*1H2;;;;;;;;;;;;;;;;;;/q;;;;3*+2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/p-6

InChI key

FIXLYHHVMHXSCP-UHFFFAOYSA-H

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

grade

ACS reagent

agency

suitable for SM 5210

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

Quality Level

300

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Analysis Note

May contain darkened ammonium molybdate crystals that are soluble in water.

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.

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.

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Certificados de análisis (COA)

Lot/Batch Number
0000514406
0000514404
0000514402
0000514401
0000514401

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Shifeng Cao et al.
International journal of food microbiology, 141(3), 173-176 (2010-07-08)
The potential enhancement of Pichia membranifaciens by ammonium molybdate (NH(4)Mo) to control blue mould caused by Penicillium expansum on peach fruit was investigated. Combining P. membranifaciens at 1x10(8) cell/ml with 1 mM NH(4)Mo provided a more effective control of blue
Bernard Lorber et al.
Micron (Oxford, England : 1993), 39(4), 431-446 (2007-05-01)
The formation of 2D arrays of three small icosahedral RNA viruses with known 3D structures (tomato bushy stunt virus, turnip yellow mosaic virus and bromegrass mosaic virus) has been investigated to determine the role of each component of a negative
Jian Ma et al.
Talanta, 88, 484-489 (2012-01-24)
Determination of silicate at low concentrations (i.e., nanomolar levels) is an important analytical objective for both marine science and the semiconductor industry. Here we report the use of flow injection analysis (FIA) in combination with long pathlength liquid core waveguide
Pradeep Verma et al.
Bioresource technology, 102(4), 3941-3945 (2010-12-24)
Pretreatments for enzymatic saccharification are crucial for the establishment of lignocellulosic biorefineries. In this study, we focused on ammonium ions and peroxometal complexes as potential delignifying agents. We first examined the pretreatment of beech wood with nine different ammonium salts
Kyung Ho Park et al.
Journal of hazardous materials, 138(2), 311-316 (2006-07-25)
The petroleum refining industry makes extensive use of hydroprocessing catalysts. These catalysts contain environmentally critical and economically valuable metals such as Mo, V, Ni and Co. In the present study, a simple hydrometallurgical processing of spent hydrodesulphurization (HDS) catalyst for
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