Eg, caustic soda (6)
I believe the answer is:
alkali
(Other definitions for alkali that I've seen before include "Compound like lime" , "Salt" , "Compound turning litmus blue" , "Acid-neutralising chemical" , "Chemical base" .)
I believe the answer is:
alkali
(Other definitions for alkali that I've seen before include "Compound like lime" , "Salt" , "Compound turning litmus blue" , "Acid-neutralising chemical" , "Chemical base" .)