Related Clues:
- Corrosive cleanser
- Solution in soap and frosted glass
- Bleaching chemical
- Sodium hydroxide solution
- Oxygen allotrope
- Caustic potash, e.g.
- Drain unclogger
- 'Fight Club' agent
- Caustic application
- Damaged layer
- Shrinking layer
- Layer to be concerned about
- It's used in soap-making
- Potassium hydroxide, e.g.
- Drain cleaner component