Isoda yeCaustic yenye yezona khemikhali zisetyenziswa kakhulu. Isetyenziselwa ukunciphisa i-asidi; ukwenza iityuwa zesodium; ukunyusa isinyithi njenge-astheir hydroxides; ekusulungekisweni kwepetroleum; kwi-saponification yee-esters; kunyango lweselulosi, iiplastiki kunye nerabha; kunye nezicelo ezininzi zokwenziwa kunye nohlalutyo.

I-sodium hydroxide ithengiswa ngokurhweba njengama-anhydrous flakes okanye iipellets okanye njenge-50% okanye i-73% yezisombululo ezinamanzi. Inokusetyenziswa kwemizi-mveliso emininzi kwaye yenye yeekhemikhali ze-10 eziphezulu malunga nemveliso kunye nokusetyenziswa kwinqanaba lehlabathi. Malunga ne-15 yezigidi zeetoni zesodium hydroxide zisetyenziswa ngonyaka. Ukusetyenziswa kwayo okukhulu, kudla malunga nesiqingatha semveliso yayo, njengesiseko sokuvelisa ezinye iikhemikhali. Isetyenziselwa ukulawula i-pH kunye nokunciphisa i-acids kwiinkqubo zeekhemikhali. Ishishini lephepha lisebenzisa kakhulu i-sodium hydroxide kwinkqubo yokucofa. I-sodium hydroxide isetyenziselwa ukwahlula iifayili ngokuqhaqha i-lignin yokudibanisa. Isetyenziswa ngendlela efanayo kwimveliso yerayon evela kwiselulosi. Kwinkqubo ye-saponification, i-triglycerides efunyenwe kwizilwanyana kunye nezityalo ifudunyezwa kwisisombululo se-abasic ukunika i-glycerol kunye nesepha:

Isodium hydroxide isetyenziswa kushishino lwempahla olulukiweyo ukwenza ibleaching kunye nokunyanga amalaphu ukwenza idayi ibe lula ngakumbi. Umzi-mveliso wepetroleum usebenzisa i-sodium hydroxide ekugrumbeni udaka kunye ne-asa bactericide. I-sodium hypochlorite (i-NaOCl) isetyenziselwa kakhulu ukucoca kunye ne-disinfectant.I-bleach yasekhaya eqhelekileyo iqukethe malunga ne-5% yesisombululo se-sodium hypochlorite. I-Sodiumhypochlorite ilungiswa ngokusabela kweklorini nge-sodium hydroxide: Cl2(g) + 2NaOH(aq) →NaOCl(aq) + NaCl(aq) + H2O(l). Isodium hydroxide isetyenziswa kwishishini lokutya ukucoca kunye nokuxobula iziqhamo kunye nemifuno. I-sodium hydroxide sisithako esincinci kwiimveliso ezininzi zekhaya, kodwa ezimbalwa zinokwenza ngaphezu kwesiqingatha semveliso. I-dranocrystals iqulethe phakathi kwe-30% kunye ne-60% ye-sodium hydroxide kunye nezinye izicoci ze-drain zingabandakanya i-100% ye-sodium hydroxide.