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Ammonium molybdate

CAS No.
13106-76-8
Chemical Name:
Ammonium molybdate
Synonyms
AMMONIUN MOLYBDATE;Ammonium orthomolybdate;molybdicacid,diammoniumsalt;AMMoniuM Molybdate 99.98% trace Metals basis;ybdate;AMMONIUM MOLYBDATE;AMMONIUM MOLYBDATE;AMMONIUM MOLYBDATE;AMMONIUM MOLYBDATE;AMMONIUM MOLYBDATE
CBNumber:
CB5309999
Molecular Formula:
H4MoNO4-
Molecular Weight:
177.99
MDL Number:
MFCD00011596
MOL File:
13106-76-8.mol
MSDS File:
SDS
Last updated:2023-08-30 19:07:15

Ammonium molybdate Properties

Density 2.498
storage temp. Inert atmosphere,Room Temperature
solubility ethanol: insoluble(lit.)
form Powder
color White
Water Solubility Soluble in water, acid and alkali, but insoluble in alcohol.
Exposure limits ACGIH: TWA 0.5 mg/m3
NIOSH: IDLH 1000 mg/m3
CAS DataBase Reference 13106-76-8(CAS DataBase Reference)
EPA Substance Registry System Molybdate (MoO42-), ammonium (1:2), (T-4)- (13106-76-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P264-P270-P301+P312-P501
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  1
RTECS  QA4900000
TSCA  Yes
HS Code  28417010
Toxicity LD50 orl-rat: 333 mg/kg 28ZLA8 -,214,61
NFPA 704
1
2 0

Ammonium molybdate price More Price(20)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 277908 Ammonium molybdate 99.98% trace metals basis 13106-76-8 5g $102 2024-03-01 Buy
Sigma-Aldrich 277908 Ammonium molybdate 99.98% trace metals basis 13106-76-8 20g $299 2024-03-01 Buy
Alfa Aesar 043206 Ammonium molybdate, 99.99% (metals basis) 13106-76-8 25g $234 2024-03-01 Buy
Alfa Aesar 043206 Ammonium molybdate, 99.99% (metals basis) 13106-76-8 100g $730 2024-03-01 Buy
Sigma-Aldrich 277908 Ammonium molybdate 99.98% trace metals basis 13106-76-8 100g $884 2024-03-01 Buy
Product number Packaging Price Buy
277908 5g $102 Buy
277908 20g $299 Buy
043206 25g $234 Buy
043206 100g $730 Buy
277908 100g $884 Buy

Ammonium molybdate Chemical Properties,Uses,Production

Chemical Properties

Ammonium molybdate is a colorless, white or slightly greenish-yellow powder. It is used in chemical analysis for the determination of phosphorus. From a nitric acid solution it precipitates phosphorus in the form of ammonium phosphomolybdate having the formula (NH4)3PO4-12MoO3 after drying at 110 °C(230°F). Some of the phosphomolybdic acids are used as reagents for the alkaloids and in the analysis and separation of the alkali metals.

Uses

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.

Production Methods

Pure molybdic oxide (99.95% MoO3) is prepared by sublimation of technical oxide or by calcining ammonium molybdate. Metallic molybdenum powder is prepared commercially by hydrogen reduction of either pure molybdic oxide or ammonium molybdate in a two-step process.

Definition

ChEBI: Ammonium molybdate is an ammonium salt composed of ammonium and molybdate ions in a 2:1 ratio. It has a role as a poison. It contains a molybdate.

General Description

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

Flammability and Explosibility

Not classified

Safety Profile

Poison by ingestion and intraperitoneal routes. Moderately toxic by other routes. An irritant. See also MOLYBDENUM COMPOUNDS. When heated to decomposition it emits toxic fumes of NH3 and NOx.

Potential Exposure

It is used as an analytical reagent, in pigments and in the production of molybdenum metal and ceramics.

Shipping

There are no known UN/DOT restrictions.

Purification Methods

Crystallise the salt from water (2.5mL/g) by partial evaporation in a desiccator. [Sturdivant J Am Chem Soc 59 630 1937, Grüttner & Jauder in Handbook of Preparative Inorganic Chem (Ed. Brauer) Academic Press Vol II p 1711 1965.]

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides; chemically active metals (such as potassium, sodium, magnesium and zinc) may cause a violent reaction.

Global( 303)Suppliers
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Hebei Mojin Biotechnology Co., Ltd
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SIMAGCHEM CORP
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View Lastest Price from Ammonium molybdate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Ammonium molybdate pictures 2023-08-30 Ammonium molybdate
13106-76-8
US $0.00 / KG 1KG 99% 50000KG/month Hebei Mojin Biotechnology Co., Ltd
Ammonium molybdate pictures 2023-07-25 Ammonium molybdate
13106-76-8
US $20000.00 / T 1T 99% 20tons Hebei Yanxi Chemical Co., Ltd.
ammonium molybdate pictures 2023-04-25 ammonium molybdate
13106-76-8
US $20.00 / kg 1kg 99% 5000 Ton Hebei Duling International Trade Co. LTD
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