CAS 13106-76-8 Ammonium molybdate - Catalysts / Alfa Chemistry

Synonyms

(beta-4)-molybdate(moo42-diammonium;ammoniummolybdate((nh4)2moo4);ammoniummonomolybdate;diammonium,(T-4)-Molybdate;molybdicacid,diammoniumsalt;AMMONIUM MOLYBDATE;DIAMMONIUM MOLYBDATE;Molybdate, diammonium, (T-4)-

IUPAC Name

diazanium dioxido(dioxo)molybdenum

Molecular Weight

177.99

Molecular Formula

H4MoNO4

InChI Key

APUPEJJSWDHEBO-UHFFFAOYSA-P

Melting Point

170ºC

Purity

99%+

Density

2.498

Appearance

Powder

Exact Mass

197.95400

H-Bond Acceptor

H-Bond Donor

Application

Ammonium molybdate, a colorless to slightly greenish-yellow powder, serves a crucial role in chemical analysis by facilitating the determination of phosphorus. When dissolved in nitric acid, it precipitates phosphorus as ammonium phosphomolybdate upon drying, which is useful in quantitative analysis. Additionally, it functions as an analytical reagent for detecting phosphates, silicates, arsenates, and lead in aqueous solutions. In high concentrations, ammonium molybdate is employed as a negative stain in biological electron microscopy, contributing to studies on the crystallization of membrane proteins. It is also instrumental in the analysis and separation of alkali metals and serves as a reagent for alkaloid detection. Its versatility and analytical capability are harnessed by preparing it through the dissolution of molybdenum trioxide in ammonia.

February 28, 2025

Reliable Reagent for Phosphorus Analysis

Ammonium molybdate was crucial in my research for phosphorus quantification. Its precision in forming ammonium phosphomolybdate enhanced our chemical analysis accuracy. Excellent choice for researchers needing dependable analytical reagents!