| slovo | definícia |
HCOOH
(gcide) | Formic \For"mic\, a. [L. formica an ant: cf. F. formique.]
(Chem.)
Pertaining to, or derived from, ants; as, formic acid; in an
extended sense, pertaining to, or derived from, formic acid;
as, formic ether.
[1913 Webster]
Amido formic acid, carbamic acid.
Formic acid, a colorless, mobile liquid, HCO.OH, of a
sharp, acid taste, occurring naturally in ants, nettles,
pine needles, etc., and produced artifically in many ways,
as by the oxidation of methyl alcohol, by the reduction of
carbonic acid or the destructive distillation of oxalic
acid. It is the first member of the fatty acids in the
paraffin series, and is homologous with acetic acid.
[1913 Webster] |
| | podobné slovo | definícia |
C6H5CHOHCOOH
(gcide) | amygdalic \am`yg*dal"ic\ ([.a]m`[i^]g*d[.a]l"[i^]k [a^]s"[i^]d),
n. (Chem.)
An organic acid (C6H5.CH(OH).COOH) extracted from bitter
almonds; called also mandelic acid and
[alpha]-Hydroxybenzeneacetic acid.
[PJC] |
HOCOCH2CHOHCOOH
(gcide) | Malic \Ma"lic\, a. [L. malum an apple: cf. F. malique.] (Chem.)
Pertaining to, or obtained from, apples; as, malic acid.
[1913 Webster]
Malic acid, (Chem.) a hydroxy acid
(HO.CO.CH2.CH(OH).CO.OH) obtained from unripe fruit
(such as green apples, currants, tomatoes or cherries) as
a substance which is sirupy or crystallized with
difficulty, and has a strong but pleasant sour taste. It
is levorotatory or dextrorotatory according to the
temperature and concentration; the natural form is of L-
conformation. A synthetic variety is a derivative of
succinic acid, but as with most simple synthetic
compounds, is a racemic mixture of isomers and thus has no
rotatory action on polarized light.
[1913 Webster +PJC] |
HOCOCHCHCOOH
(gcide) | maleic acid \maleic acid\ n. (Chem.)
An unsaturated dicarboxylic acid (HO.CO.CH=CH.CO.OH) of cis
conformation, having various uses in the manufacture of
artificial resins, the dyeing and finishing of wool, silk,
and cotton, and also combined with certain drugs to make
salts more soluble than the basic forms. The corresponding
isomer having trans conformation, is identical in chemical
formula, is called fumaric acid. --MI11
[PJC] |
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