Related Clues:
- Cleaning chemical
- Caustic drain opener
- Sodium hydroxide, familiarly
- Strong sodium solution
- Strong cleaning solution
- A corrosive
- Soap chemical
- Soap maker's need
- Harsh cleanser
- Strong alkaline solution
- Hydroxide solution
- Soap component
- Drano component
- It's obtained by leaching
- What real lutefisk is soaked in