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Merck

277908

Ammonium molybdate

99.98% trace metals basis

Sinónimos:

Ammonium orthomolybdate, Diammonium molybdate

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Acerca de este artículo

Fórmula lineal:
(NH4)2MoO4
Número CAS:
Peso molecular:
196.01
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
236-031-3
MDL number:
Assay:
99.98% trace metals basis
Form:
solid
Solubility:
ethanol: insoluble(lit.)
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Nombre del producto

Ammonium molybdate, 99.98% trace metals basis

InChI key

LZRXBDCICLHKEN-UHFFFAOYSA-L

InChI

1S/Mo.2H3N.2H2O.2O/h;2*1H3;2*1H2;;/q+2;;;;;;/p-2

SMILES string

N.N.O[Mo](O)(=O)=O

assay

99.98% trace metals basis

form

solid

reaction suitability

reagent type: catalyst

technique(s)

electron microscopy: suitable

impurities

≤250.0 ppm Trace Metal Analysis

solubility

ethanol: insoluble(lit.)

Quality Level

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Application

Ammonium molybdate has been used to prepare phosphomolybdates. (NH4)2MoO4 was used as an analytical reagent for quantitative analysis of phosphates, silicates, arsenates and lead in their aqueous solutions.2 At saturated concentration, (NH4)2MoO4 was used to perform cryo-negative staining and as a negative stain in biological electron microscopy. Ammonium molybdate was used in study of crystallisation of cell-free-expressed membrane proteins.
Ammonium molybdate has been used to prepare phosphomolybdates. (NH4)2MoO4 was used as an analytical reagent for quantitative analysis of phosphates, silicates, arsenates and lead in their aqueous solutions. At saturated concentration, (NH4)2MoO4 was used to perform cryo-negative staining and as a negative stain in biological electron microscopy. Ammonium molybdate was used in study of crystallisation of cell-free-expressed membrane proteins.

General description

Ammonium molybdate can be prepared by dissolving molybdenum trioxide in ammonia.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Acute Tox. 4 Oral

Clase de almacenamiento

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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M Adrian et al.
Micron (Oxford, England : 1993), 29(2-3), 145-160 (1998-07-31)
A procedure is presented for the preparation of thin layers of vitrified biological suspensions in the presence of ammonium molybdate, which we term cryo-negative staining. The direct blotting of sample plus stain solution on holey carbon supports produces thin aqueous
Effect of the addition of ammonium molybdate on metakaolin-based geopolymer formation: Shrinkage and crystallization
Vidal L, et al.
Powder Technology, 275, 211-219 (2015)
Handbook of Non-Ferrous Metal Powders: Technologies and Applications null
S De Carlo et al.
Journal of structural biology, 138(3), 216-226 (2002-09-10)
Beam damage is the main resolution-limiting factor when biological particles are observed by cryoelectron microscopy in a thin vitrified solution film. Furthermore, the low contrast of the specimen frequently makes observation difficult and limits the possibility of image processing. Cryo-negative
Principles of micro Sequential Injection Analysis in the Lab-on-Valve format and its Introduction into a Teaching Laboratory
Decuir MS, et al.
Journal of Flow Injection Analysis, 24(2), 103-103 (2007)

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