Chemical IncompatibilityCAS 7681-52-9 · 64-19-7
Can You Mix Bleach and Vinegar? Chlorine Gas Risk Explained
Sodium hypochlorite + Acetic acid: incompatible. Acetic acid (an acid) reacts with sodium hypochlorite (bleach) to release toxic chlorine gas (Cl₂). Low concentrations irritate the eyes, nose and airways; higher concentrations can cause severe respiratory injury. Never combine bleach with acidic cleaners such as vinegar.
Verdict — INCOMPATIBLE
Compatibility Assessment
incompatible
Acetic acid (an acid) reacts with sodium hypochlorite (bleach) to release toxic chlorine gas (Cl₂). Low concentrations irritate the eyes, nose and airways; higher concentrations can cause severe respiratory injury. Never combine bleach with acidic cleaners such as vinegar.
Verified source
- Basis
- expert_review
- Reference
- Acid + hypochlorite → chlorine gas (Cl₂) — well-established household/lab chemical incompatibility documented by US CDC and poison-control centres; consistent with both chemicals' SDS incompatibility sections.
- Last verified
- 2026-07-08
This information is provided for reference purposes only. For critical safety decisions, always consult the official Safety Data Sheet (SDS) and your local regulatory authority. MSDS Chain makes no warranty as to completeness or fitness for a particular purpose.