a black powder, FeO, insoluble in water, soluble in acid.
A black powder used to make steel, green heat-absorbing glass, and enamels. Chemical formula: FeO.
[ahy-ern-on, -awn] /ˈaɪ ərnˌɒn, -ˌɔn/ adjective 1. designed to be applied with heat and pressure, as by an iron: an iron-on patch for pants. noun 2. a design, patch, or the like, applied by ironing on. adj. 1959, from iron (v.) + on.
noun, Chemistry. 1. . noun, Chemistry. 1. a dark-red, crystalline, water-insoluble solid, Fe 2 O 3 , occurring naturally, as hematite and rust, or synthesized: used chiefly as a pigment, as a mordant, as a coating for magnetic recording tape, and in the manufacture of polishing compounds. noun 1. a red crystalline insoluble oxide of […]
noun, Chemistry. 1. . noun, Chemistry. 1. a compound that in its anhydrous form, FeCl 3 , occurs as a black-brown, water-soluble solid; in its hydrated form, FeCl 3 ⋅xH 2 O, it occurs in orange-yellow, deliquescent crystals: used chiefly in engraving, for deodorizing sewage, as a mordant, and in medicine as an astringent and […]
- Iron pan
noun 1. (geology) a hard layer of precipitated iron salts often found below the surface of sands and gravels