NaOH

formula

Terminological databases

ID 636633 Last modified 04.03.2024

Domain inorganic chemistry

naatriumhüdroksiid

seebikivi former

NaOH

sööbenaatrium former

sodium hydroxide

caustic soda

NaOH

valge, hügroskoopne, vees hästi lahustuv tahkis, tugev leelis
Good to know
- 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

naatriumhüdroksiid

Usage examples

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.

seebikivi former

NaOH formula

sööbenaatrium former

sodium hydroxide

Usage examples

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.

caustic soda

NaOH formula

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