09878

Sigma-Aldrich

Ammonium molybdate tetrahydrate

BioUltra, ≥99.0% (T)

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.26

product line

BioUltra

Quality Level

assay

≥99.0% (T)

reaction suitability

reagent type: catalyst
core: molybdenum

impurities

insoluble matter, passes filter test

pH

4.0-5.5 (25 °C, 0.05 M in H2O)

solubility

H2O: 0.05 M at 20 °C, clear, colorless

density

2.498 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤10 mg/kg
nitrate (NO3-): ≤20 mg/kg
phosphate, silicate, arsenate (as PO43-): ≤10 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

absorption

cut-off at 360 nm in H2O at 0.05 M

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

Related Categories

Other Notes

For the determination of phosphorus

storage_class_code

13 - Non Combustible Solids

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

E. Seaman
Methods in Enzymology, 12b, 218-218 (1968)
Xiao Zhang et al.
Science advances, 6(40) (2020-10-02)
The direct growth of single-walled carbon nanotubes (SWCNTs) with narrow chiral distribution remains elusive despite substantial benefits in properties and applications. Nanoparticle catalysts are vital for SWCNT and more generally nanomaterial synthesis, but understanding their effect is limited. Solid catalysts...
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...
Sidney Omelon et al.
Electrophoresis, 28(16), 2808-2811 (2007-07-21)
Nonradioactive polyphosphate (poly(P); (PO(3) (-))(n)) species resolved by PAGE can be detected by hydrolytic degradation of the polyphosphates into orthophosphates (P(i)) with a 5 M HCl solution saturated with NaCl, followed by staining the P(i) degradation products in a 1...
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...

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