I-sodium sulfide, i-inorganic compound eyaziwa nangokuthi yi-alkali enuka, i-soda enephunga, i-alkali ephuzi, nofana i-sulfide alkali, yipuyere engenambala ehlanzekileko. Ine-hygroscope ekulu begodu incibilika lula emanzini, okwenza bona kube nesisombululo samanzi esitjengisa izakhiwo ezinamandla ze-alkaline. Ukuthintana nesikhumba nofana iinhluthu kungabangela ukutjhisa, kungebangelo ibizo layo elivamileko elithi "sulfide alkali." Lokha nayivezwa emoyeni, isisombululo samanzi se-sodium sulfide siyatjhuguluka kancanikancani ukwakha i-sodium thiosulfate, i-sodium sulfite, i-sodium sulfate, kanye ne-sodium polysulfide. Hlangana nalokhu, i-sodium thiosulfate yenziwa msinyana, okwenza bona ibe mkhiqizo omkhulu we-oxidation. I-sodium sulfide nayo ithambekele ekubeni yi-deliquescence ne-carbonation emoyeni, okurholela ekuboleni nokukhutjhwa okuragelako kwegesi ye-hydrogen sulfide. I-sodium sulfide yezinga lamabubulo kanengi inezinto ezisilapheleko, ezinikela ngemibala efana nopinki, obomvu-onsundu, nofana ophuzi-onsundu. I-gravity ethileko, indawo yokuncibilika, kanye nendawo yokubilisa yekhompawundi ingahluka ngebanga lomthelela wezinto ezingcolileko.

I-sodium sulfide inesitifiketi sesithathu se-SGS, isitifiketi sezinga lezebubulo, begodu sele iphasile isitifiketi se-ISO yamazwe ngamazwe kanye nesitifiketi sokuthobela i-REACH.