A7302

Sigma-Aldrich

Ammonium molybdate tetrahydrate

ACS reagent, 81.0-83.0% MoO3 basis

Synonym(s):
Molybdic acid ammonium salt tetrahydrate, Ammonium heptamolybdate tetrahydrate
Linear Formula:
(NH4)6Mo7O24 · 4H2O
CAS Number:
Molecular Weight:
1235.86
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

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% (by ICP-OES)

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

Looking for similar products? Visit Product Comparison Guide

Packaging

2.5 kg in poly drum
1 kg in poly bottle
100, 500 g in poly bottle

Quality

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

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

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...
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...
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...
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...
Suvarna Sounderajan et al.
Journal of hazardous materials, 149(1), 238-242 (2007-09-01)
Arsenic (V) is known to form heteropolyacid with ammonium molybdate in acidic aqueous solutions, which can be quantitatively extracted into certain organic solvents. In the present work, 12-molybdoarsenic acid extracted in butan-1-ol is used for quantification of As (V). Total...
Protocols
Objective: To standardize a procedure for the enzymatic determination of Glucose-6-phosphatase activity
Read More
Objective: To standardize a procedure for determining the enzymatic activity of 5’-Nucleotidase.
Read More

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon

MilliporeSigma

Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.