Eg, lime or caustic soda (6)
I believe the answer is:
alkali
(Other definitions for alkali that I've seen before include "Substance such as lime or caustic soda" , "Acid-neutralising chemical" , "Salt" , "Opposite of acid" , "Chemical base" .)
I believe the answer is:
alkali
(Other definitions for alkali that I've seen before include "Substance such as lime or caustic soda" , "Acid-neutralising chemical" , "Salt" , "Opposite of acid" , "Chemical base" .)