Soda Caustic wani farin farin ne mai ƙarfi tare da haɓakar haɓakar jiki. Zai narke kuma ya gudana bayan ya sha danshi. Zai iya sha ruwa da carbon dioxide a cikin iska don samar da sodium carbonate. Yana da laushi, mai narkewa cikin ruwa, barasa, glycerin, amma mara narkewa cikin acetone. Ana sakin zafi mai yawa lokacin narkewa. Maganin ruwa-ruwa shine mai santsi da alkaline. Yana da laushi sosai kuma yana iya ƙone fata kuma ya lalata ƙwayar fibrous. Saduwa da aluminium a yanayin zafi mai yawa yana samar da hydrogen. Zai iya kawar da acid tare da samar da salts iri-iri. Liquid sodium hydroxide (ma'ana, mai narkewa a cikin alkali) ruwa ne mai ruwan hoda mai ruwan shuɗi mai ɗauke da sabulu da santsi, kuma dukiyar sa tayi kama da alkali mai ƙarfi. Shirye-shiryen soda na caustic lantarki ne ko na kemikal. Hanyoyin sunadarai sun haɗa da narkar da lemun tsami ko ferrite. Amfani da soda na caustic galibi ana amfani dashi a cikin mayukan roba, sabulai, yin takarda; kuma ana amfani dashi azaman sauran ƙarfi don danshin vat da dyes marasa narkewar nitrogen; kuma ana amfani dashi wajen samar da mai, zaren sinadarai, da rayon; kuma ana amfani dashi a magani, kamar samar da bitamin C Wait. Hakanan za'a iya amfani dashi a cikin ƙwayoyin halitta da masana'antun mai kuma kai tsaye ana amfani dashi azaman mai lalata.