Educational summary of documented chemical interactions. Do NOT attempt any of these mixtures. If an accidental mix occurs, evacuate, ventilate, and call emergency services. Terms of use.

Chemical mixture

Can you mix Formaldehyde and Hydrochloric acid?

Dangerous. Can form bis(chloromethyl) ether, a strong carcinogen.
solvent
Formaldehyde
CAS 50-00-0
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acid
Hydrochloric acid
CAS 7647-01-0
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What happens

Trace formation of BCME occurs when formaldehyde and HCl coexist as vapors. OSHA classifies BCME as a known human carcinogen with no safe exposure.

Reaction products

  • Bis(chloromethyl) ether (BCME)

If contact happens

Segregate. Vent formaldehyde separately from acid vapors.

Other common mixtures

See all 35 mixtures →

Educational summary based on public NIOSH, OSHA and CAMEO Chemicals data. Always consult the official Safety Data Sheet before handling.