[fer-ik] /ˈfɛr ɪk/
of or containing iron, especially in the trivalent state.
of or containing iron in the trivalent state: ferric oxide; designating an iron (III) compound
1799, from Latin ferrum “iron” (see ferro-) + -ic. Of iron, especially with a valence of three.
ferric fer·ric (fěr’ĭk)
Of, relating to, or containing iron, especially with a valence of 3 or a valence higher than in a corresponding ferrous compound.
Containing iron, especially iron with a valence of 3. Compare ferrous.
noun, Chemistry. 1. a green, crystalline, water-soluble, synthetically produced powder, (NH 4) 3 Fe(C 2 O 4) 3 ⋅3H 2 O, used chiefly in the manufacture of blueprint paper.
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 styptic.
- Ferric chloride test
ferric chloride test n. A test for phenylketonuria in which ferric chloride is added to urine and turns the urine blue-green when phenylketonuria is present.
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 iron that occurs as […]