Ammonium Molybdate Extra Pure, typically supplied as tetrahydrate ((NH4​)6​Mo7​O24​⋅4H2​O), is a high-purity, white crystalline compound widely used in laboratory chemistry for analytical, inorganic, and materials science applications. It is most notably used in colorimetric analysis for detecting phosphates, silicates, and arsenates through the formation of characteristic molybdenum blue complexes. In catalysis and coordination chemistry, it serves as a precursor for molybdenum-based compounds and materials. Its extra pure grade ensures high accuracy and reproducibility in sensitive assays and research procedures. Ammonium molybdate should be stored in a tightly sealed container in a cool, dry place, protected from light and moisture to maintain its stability and effectiveness.
Ammonium Vanadate Extra Pure is a high-purity, yellow crystalline compound primarily used in laboratory settings for analytical, inorganic, and catalytic research. It serves as a reliable source of vanadium in oxidation-reduction studies, and is especially valuable in colorimetric analysis of phosphates and peroxides, where it forms distinct vanadate complexes. In catalysis, it is used as a precursor for vanadium-based catalysts in oxidation reactions and materials synthesis. The extra pure grade ensures minimal contamination, making it suitable for high-precision experimental work. Due to its toxic and oxidative nature, it should be handled with care and stored in a cool, dry place in tightly sealed containers, away from incompatible substances.