What is another word for "alkali"?

Roget's Thesaurus (1911) lists these synonyms for "alkali": aeration, aerial, aerification, aeriform, aerodynamics, aerostatics, air, airy, alluvial, ammonia, ammoniacal, basin, bladder, bush, campagna, campestral, campestrian, champaign, cloud, common, country, desert, diffuse, effluvium, elastic, emit, essence, ether, ethereal, evanesce, evaporable, evaporate, face, field, fish, flat, flatulence, flatulency, flatulent, flatus.