Caustic soda (inozivikanwawo sesodium hydroxide) ikemikari inoshandiswa zvakanyanya mumaindasitiri inoshandiswa mumaindasitiri akasiyana-siyana anosanganisira machira, pulp nepepa, alumina, sipo nesipo, kunatswa kwepeturu uye kurapwa kwemvura. Inowanzo kutengeswa muzvikamu zviviri: mvura (alkali) uye yakasimba (flakes). Caustic soda flakes zviri nyore kutakura munzvimbo refu uye ndicho chigadzirwa chinofarirwa kutengeswa kunze kwenyika. Kambani iyi ndiyo yechipiri pakukura mukugadzira caustic soda muIndia ine kugona kwekugadzira kwemamiriyoni etani pagore.