Definition of Phenal
Phe"nol (?), n. [Gr. &?; to show + -
ol: cf. F. phénol.] (Chem.)
1. A white or pinkish crystalline substance,
C6H5OH, produced by the destructive distillation
of many organic bodies, as wood, coal, etc., and obtained from the
heavy oil from coal tar.
&fist; It has a peculiar odor, somewhat resembling creosote, which
is a complex mixture of phenol derivatives. It is of the type of
alcohols, and is called also phenyl alcohol, but has acid
properties, and hence is popularly called carbolic acid, and
was formerly called phenic acid. It is a powerful caustic
poison, and in dilute solution has been used as an antiseptic.
2. Any one of the series of hydroxyl
derivatives of which phenol proper is the type.
Glacial phenol (Chem.), pure
crystallized phenol or carbolic acid. -- Phenol
acid (Chem.), any one of a series of compounds
which are at once derivatives of both phenol and some member of the
fatty acid series; thus, salicylic acid is a phenol acid.
-- Phenol alcohol (Chem.), any one of
series of derivatives of phenol and carbinol which have the properties
of both combined; thus, saligenin is a phenol alcohol. --
Phenol aldehyde (Chem.), any one of a
series of compounds having both phenol and aldehyde properties. -
- Phenol phthalein. See under
Phthalein.
- Webster's Unabridged Dictionary (1913)
- A caustic, poisonous, white crystalline compound, C6H5OH, derived from benzene and used in resins, plastics, and pharmaceuticals and in dilute form as a disinfectant and antiseptic; once called carbolic acid
- (chemistry) Any of a class of aromatic organic compounds having at least one hydroxyl group attached directly to the benzene ring
- The Nuttall Encyclopedia
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