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 Sulfuric acid and Sodium cyanide?
☠Deadly. Do not mix.. Releases hydrogen cyanide gas.
salt
Sodium cyanide
CAS 143-33-9
What happens
Same acid displacement as with HCl. Sulfuric acid is often the accidental culprit in industrial cyanide incidents.
Reaction products
- Hydrogen cyanide (HCN)
- Sodium sulfate
If contact happens
Keep cyanides alkaline in dedicated cabinets far from any acid.
Other common mixtures
Bleach (sodium hypochlorite) + Ammonia☠Bleach (sodium hypochlorite) + Vinegar (acetic acid)☠Bleach (sodium hypochlorite) + Hydrochloric acid☠Bleach (sodium hypochlorite) + Isopropyl alcohol⚠Bleach (sodium hypochlorite) + Ethanol⚠Bleach (sodium hypochlorite) + Hydrogen peroxide⚠Bleach (sodium hypochlorite) + Acetone⚠Hydrochloric acid + Sodium hydroxide!Sulfuric acid + Sodium hydroxide⚠
See all 35 mixtures →Educational summary based on public NIOSH, OSHA and CAMEO Chemicals data. Always consult the official Safety Data Sheet before handling.