Soda ya Caustic (izwi kandi nka sodium hydroxide) ni imiti ikoreshwa mu nganda nyinshi kandi ikoreshwa cyane ikoreshwa mu nganda zitandukanye zirimo imyenda, imyanda n'impapuro, alumina, isabune n'isabune, gutunganya peteroli no gutunganya amazi. Ubusanzwe igurishwa mu buryo bubiri bufatika: amazi (alkali) n'ibikomeye (flakes). Uduce twa soda ya Caustic tworoshye gutwara mu ntera ndende kandi ni byo bikunzwe cyane mu kohereza mu mahanga. Iyi sosiyete ni yo ya kabiri mu bucuruzi bwa soda ya caustic mu Buhinde ifite ubushobozi bwo gukora toni miliyoni imwe buri mwaka.