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A7302 Sigma-Aldrich

Ammonium molybdate tetrahydrate

ACS reagent, 81.0-83.0% MoO3 basis

Synonym: Ammonium heptamolybdate tetrahydrate, Molybdic acid ammonium salt tetrahydrate


Related Categories Ammonium Salts, Catalysis and Inorganic Chemistry, Chemical Synthesis, Essential Chemicals, Molecular Biology,
grade   ACS reagent
assay   81.0-83.0% MoO3 basis
impurities   ≤0.005% Insoluble matter
density   2.498 g/mL at 25 °C(lit.)
anion traces   arsenate, phosphate, and silicate (as SiO2): ≤0.001%
  chloride (Cl-): ≤0.002%
  nitrate (NO3-): passes test (limit about 0.003%)
  phosphate (PO43-): ≤5 ppm
  sulfate (SO42-): ≤0.02%
cation traces   Mg: ≤0.005%
  heavy metals (as Pb): ≤0.001%
storage temp.   room temp



1 kg in poly bottle

100, 500 g in poly bottle

2.5 kg in poly drum


May contain darkened ammonium molybdate crystals that are soluble in water.

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