Related Clues:
- Colourless pungent gas
- Corrosive substance
- No help (anag) - antiseptic
- Pungent gas used in cleaning liquids
- Chemical in drain cleaners
- Caustic drain unclogger
- Suffocating gas and bullets in a disturbance
- Caustic stuff in Drano
- Pungent gas formed of nitrogen and hydrogen
- Strong-smelling cleaning ingredient
- Caustic chemical used in making soap
- Chemical in biodiesel factories
- Caustic 'Fight Club' substance
- Oil partner in soapmaking
- Drain-opener ingredient