Ammonium heptamolybdate tetrahydrate

Ammonium heptamolybdate tetrahydrate (CAS 12054-85-2), abbreviated AHM, is a water-soluble molybdenum salt used as a primary source of molybdenum. Also marketed as ammonium molybdate tetrahydrate.

Where is Ammonium heptamolybdate tetrahydrate used?

• Water treatment and industrial cooling systems: corrosion inhibitor that forms a protective oxide layer on metal surfaces to reduce pipe and equipment degradation
• Agriculture: molybdenum micronutrient source in fertilizers and foliar sprays where deficiency limits crop yield
• Industrial cleaning and surface treatment: incorporated into passivation and anti-corrosion formulations for metal processing lines
• Analytical chemistry: reagent particularly effective in phosphate and silicate detection assays
• It delivers concentrated molybdenum content in a stable, handleable crystalline form.

Commercial specifications

• Technical and reagent grades, with purity from industrial-grade to ACS and analytical-grade specifications
• Bulk quantities standard for industrial buyers; smaller packaging for laboratory and formulation use