A.sodium carbonate, Sapph.165, Hp.Aër.7, Arist. Mete.383b12, IG9(1).691 (Corc., iii B.C.), PCair.Zen.304.7 (iii B.C.), PTeb.182 (ii B.C.), Gal.13.265; “ν. ἐρυθρόν” Hp.Nat.Mul.32, cf. Mul. 1.98; ν. θαλάσσιον, i.e. from the Egyptian lakes, Hippiatr.130; as an ἄρτυμα, Antiph.142.2; mixed with oil as a soap, Alciphr.3.61, Lib.Decl.26.19. (Cf. Egypt. ntirj 'natron'.)
νίτρ-ον , τό, in Hdt. and Att. λίτρον (q.v.),