I-Caustic soda ingelinye lamakhemikhali asetshenziswa kakhulu. Isetshenziselwa ukunciphisa ama-acids; ukwenza usawoti we-sodium; ukusheshisa izinsimbi astheir hydroxides; ekucwengisweni kwe-petroleum; ekufakweni kwe-esters; ekwelapheni i-cellulose, ipulasitiki, nerabha; kanye nezinhlelo zokusebenza eziningi zokwenziwa nezokuhlaziya.

I-sodium hydroxide ithengiswa ngokuthengisa njengama-anhydrous flakes noma ama-pellets noma njenge-50% noma i-73% yezixazululo ezinamanzi. Inemisebenzi eminingi yezimboni futhi ingelinye lamakhemikhali ayi-10 aphezulu mayelana nokukhiqizwa nokusetshenziswa emhlabeni jikelele. Kusetshenziswa amathani ayizigidi eziyi-15 e-sodium hydroxide ngonyaka. Ukusetshenziswa kwayo okukhulu kakhulu, kudla cishe ingxenye yokukhiqizwa kwayo, kuyisisekelo sokukhiqiza amanye amakhemikhali. Isetshenziselwa ukulawula i-pH futhi inciphise ama-asidi ezinqubweni zamakhemikhali. Imboni yephepha isebenzisa kakhulu i-sodium hydroxide enqubweni ye-pulping. I-sodium hydroxide isetshenziselwa ukuhlukanisa imicu ngokuhlakaza i-lignin yokuxhuma. Isetshenziswa ngendlela efanayo ekukhiqizeni i-rayon kusuka ku-cellulose. I-sodium hydroxide iyikhemikhali eyinhloko embonini yensipho.Enqubweni ye-saponification, ama-triglycerides atholakala esilwaneni nasezitshalweni ashiswa ngesisombululo se-abasic ukunikeza i-glycerol nensipho:

I-sodium hydroxide isetshenziswa embonini yendwangu ukwenza bleaching kanye nokwelapha izindwangu ukuze kwenziwe ukudaya kube lula. Imboni ye-petroleum isebenzisa i-sodium hydroxide ekumba odakeni kanye ne-asa bactericide. I-sodium hypochlorite (NaOCl) isetshenziswa kakhulu ekuhlanzeni nanjengesibulala-magciwane.I-bleach evamile yasendlini iqukethe cishe u-5% we-sodium hypochlorite solution. I-Sodiumhypochlorite ilungiswa ngokuphendula i-chlorine ne-sodium hydroxide: Cl2(g) + 2NaOH(aq) →NaOCl(aq) + NaCl(aq) + H2O(l). I-sodium hydroxide isetshenziswa embonini yokudla ukuhlanza nokuxebula izithelo nemifino. I-sodium hydroxide iyisithako esincane emikhiqizweni eminingi evamile, kodwa kwembalwa ingase yakhe ngaphezu kwengxenye yomkhiqizo. Ama-dranocrystals aqukethe phakathi kuka-30% no-60% we-sodium hydroxide kanti amanye ama-drano cleaners angaba no-100% we-sodium hydroxide.