Fixed, determined, appointed. perfixed salt n. rare a salt that is not easily vaporized; cf. fixed, adj. 4b.

a salt containing three different bases.

Originally (now rare): a salt in which the anion occurs in its greatest possible proportion relative to the metal cation. In later use: a…

A salt containing oxygen and another non-metallic element; a salt of an oxyacid, or of an anion containing oxygen.

a compound, a salt having its constituents in these proportions.

Any of various (soluble) salts of potassium, esp. as occurring naturally and extracted for use e.g. in fertilizers as a source of potassium…

hydrated ferrous ammonium sulphate, Fe(NH4)2(SO4)2·6H2O, a stable, light green, deliquescent crystalline salt used in volumetric analysis as a source…