Section F, G and H

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"Section F, G and H"

[L. ferrum iron:
cf. F. ferrique. See Ferrous.] Pertaining to,
derived from, or containing iron. Specifically (Chem.),
denoting those compounds in which iron has a higher valence than in
the ferrous compounds; as, ferric oxide; ferric
acid.

Ferric acid (Chem.), an acid,
H₂FeO₄, which is not known in the free state,
but forms definite salts, analogous to the chromates and
sulphates. -- Ferric oxide (Chem.),
sesquioxide of iron, Fe₂O₃; hematite. See
Hematite.

Fer`ri*cy"a*nate (?), n. [Ferri-
+ cyanate.] (Chem.) A salt of ferricyanic acid; a
ferricyanide.

Fer`ri*cy*an"ic (?), a. [Ferri-
+ cyanic.] (Chem.) Pertaining to, or derived from,
a ferricyanide.

Ferricyanic acid (Chem.), a brown
crystalline substance, H₆(CN)₁₂Fe₂,
obtained from potassium ferricyanide, and regarded as the type of the
ferricyanides; -- called also hydro-ferricyanic acid,
hydrogen ferricyanide, etc.

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Notes and Queries, Number 01, November 3, 1849 (page 51) First and Last Things (page 167) Words of Cheer for the Tempted, the Toiling, and the Sorrowing (page 312)

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"Section F, G and H"