Related Clues:
- It's caustic
- After half a century you get quite caustic
- Highly caustic stuff
- Drain-clearing chemical
- Drain-cleaner chemical
- Burning stuff
- Drain-cleaner ingredient
- Cleaning substance
- Hominy-making solution
- Common name for sodium hydroxide
- Gas supplies in war in a muddle
- Gas and bullets in a conflict
- Pungent gas used in the manufacture of fertiliser
- Colourless pungent gas
- Corrosive substance