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 ezimanzi.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.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 zasekhaya, 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.