What is it?
Ammonium heptamolybdate is a form of the metal molybdenum that is used in a variety of industries as well as a marker for detecting contact allergy to molybdenum.
How can I avoid it?
Skin contact with ammonium heptamolybdate is required for it to cause a rash. Discontinuation of exposure to products containing ammonium heptamolybdate should result in improvement and/or resolution of your dermatitis. At work, request a Safety Data Sheet (SDS) to help identify potential sources of exposure.
Uses:
- Ceramic production
- Fixing of metals
- Analytic reagent for measuring other chemicals
- Electroplating
- Fertilizer additive
- Staining for electron microscopy
- Detection of recreational drugs
Other names for ammonium heptamolybdate:
- Ammonium paramolybdate
- Ammonium molybdate (VI)
- Ammonium molybdenum oxide
- Molybdic acid, ammonium salt
- Dihydroxy(dioxo)molybdenum – trioxomolybdenum ammoniate
Potential cross-reacting substances:
- Other forms of molybdenum
11-2025