I-Caustic Soda yialkali eyomeleleyo kunye nokuhlwa okuqinileyo, ngokubanzi kwimo yeeflakes okanye iibhloko, ukunyibilika ngokulula emanzini (i-exothermic xa inyibilika emanzini) kwaye yenza isisombululo sealkaline, kunye ne-deliquescent Ngokwesondo, kulula ukufunxa umphunga wamanzi (i-deliquescent) kunye nekharbon diokside (ukuwohloka) emoyeni, kwaye inokongezwa kunye ne-hydrochloric acid ukujonga ukuba yonakele na.