I-Caustic Soda yialkali eyomeleleyo enokudleka okuqinileyo, ngokubanzi ikwimo yeeflakes okanye iibhloko, inyibilika lula emanzini (exothermic xa inyibilikiswa emanzini) kwaye yenza isisombululo sealkaline, kunye nedeliquescent.
Ngokwesondo, kulula ukufunxa umphunga wamanzi (i-deliquescent) kunye ne-carbon dioxide (ukonakala) emoyeni, kwaye inokongezwa nge-hydrochloric acid ukujonga ukuba iyancipha.