valge, hügroskoopne, vees hästi lahustuv tahkis, tugev leelis
Hea teada
Ta on tugev leelis, mistõttu nahale sattudes tekitab põletust. Eriti hoiduda silma sattumast. Ta leiab rakendamist vedelkütuste töötlemisel, seebi keetmisel, tekstiili- ja paberitööstuses jm. Koduses majapidamises võib kasutada umbeläinud kraanikausi, kanalisatsioonitoru puhastamiseks (seebistab seina külge kleepunud rasvained).
a white translucent deliquescent solid, NaOH, soluble in water and ethanol but insoluble in ether; r.d. 2.13; m.p. 318°C; b.p. 1390°C
Üks olulisemaid ja levinumaid sööbeleelisi (-aluseid) on naatriumhüdroksiid, vananenud nimega seebikivi, sööbenaatrium, kaustiline sooda (caustic soda) (caustic inglise k. sööbiv). Teda saadakse NaCl vesilahuse elektrolüüsil.
At room temperature, sodium hydroxide is a white crystalline odorless solid that absorbs moisture from the air. It is a manufactured substance. When dissolved in water or neutralized with acid it liberates substantial heat, which may be sufficient to ignite combustible materials. Sodium hydroxide is very corrosive.
Sodium hydroxide is used to manufacture soaps, rayon, paper, explosives, dyestuffs, and petroleum products. It is also used in processing cotton fabric, laundering and bleaching, metal cleaning and processing, oxide coating, electroplating, and electrolytic extracting. It is commonly present in commercial drain and oven cleaners.
