I-Caustic soda (ekwaziwa ngokuba yi-sodium hydroxide) yikhemikhali yemizi-mveliso esetyenziswa ngeendlela ezahlukeneyo nesetyenziswa kakhulu esetyenziswa kumacandelo amaninzi aquka amalaphu, i-pulp kunye nephepha, i-alumina, isepha kunye neesepha, ukucocwa kwepetroleum kunye nokucocwa kwamanzi. Ihlala ithengiswa kwiimeko ezimbini ezibonakalayo: ulwelo (i-alkali) kunye ne-solid (ii-flakes). Ii-Caustic soda flakes kulula ukuzithutha kumgama omde kwaye zezona mveliso zikhethwayo zokuthunyelwa kwamanye amazwe. Le nkampani ngumvelisi wesibini ngobukhulu we-caustic soda eIndiya onokukwazi ukuvelisa i-1 yezigidi zeetoni ngonyaka.