| slovo | definícia |
C3H6
(gcide) | Propylene \Pro"pyl*ene\, n. [Cf. F. propyl[`e]ne.] (Chem.)
A colorless gaseous hydrocarbon (C3H6) of the ethylene
series, having a garlic odor. It occurs in coal gas, and is
produced artificially in various ways. Called also propene.
[1913 Webster] |
C3H6
(gcide) | Trimethylene \Tri*meth"yl*ene\, n. (Chem.)
A gaseous hydrocarbon, C3H6, isomeric with propylene and
obtained from it indirectly. It is the base of a series of
compounds analogous to the aromatic hydrocarbons. |
C3H6
(gcide) | cyclopropane \cyclopropane\ n.
a colorless flammable gas (C3H6) with a three-carbon ring,
sometimes used as an anesthetic.
[WordNet 1.5] |
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C3H6N6
(gcide) | melamine \mel"a*mine\ (m[e^]l"[.a]*m[=e]n) n. (Chem.)
A nitrogenous strongly basic chemical substance (C3H6N6),
structurally 2,4,6-triamino-1,3,5-triazine, produced from
several cyanogen compounds, and obtained as a white
crystalline substance; -- formerly supposed to be produced by
the decomposition of melam. Called also cyanuramide. It is
used as one of the starting components (together with
formaldehyde) in the preparation of melamine resins,
including the commercially marketed Formica (TM). It is
solid at room temperature, and sublimes at temperatures
approaching 250[deg] C, decomposing at 345[deg] C. Density
1.573. --HCP61
[1913 Webster + PJC] melamine resin |
C3H6O3
(gcide) | Lactic \Lac"tic\, a. [L. lac, lactis, milk: cf. F. lactique. See
Lacteal, and cf. Galactic.] (Physiol. Chem.)
Of or pertaining to milk; procured from sour milk or whey;
as, lactic acid; lactic fermentation, etc.
[1913 Webster]
Lactic acid (Physiol. Chem.), a sirupy, colorless fluid,
soluble in water, with an intensely sour taste and strong
acid reaction. There is one center of optical activity,
and this results in the observation of three isomeric
modifications all having the formula C3H6O3; one is
dextrorotatory (L-lactic acid), the other levorotatory
(D-lactic acid), and the third an optically inactive
mixture of the first two (DL-lactic acid); chemically it
is 2-hydroxypropanoic acid. Sarcolactic acid or
paralactic acid occurs chiefly in dead muscle tissue,
while ordinary lactic acid (DL-lactic acid) results from
fermentation, such as the fermentation of milk by lactic
acid bacteria. The two acids are alike in having the same
constitution (expressed by the name {ethylidene lactic
acid}), but the latter is optically inactive, while
sarcolactic acid rotates the plane of polarization to the
right. The third acid, ethylene lactic acid, accompanies
sarcolactic acid in the juice of flesh, and is optically
inactive.
Lactic ferment, an organized ferment (Bacterium lacticum
or Bacterium lactis), which produces lactic
fermentation, decomposing the sugar of milk into carbonic
and lactic acids, the latter, of which renders the milk
sour, and precipitates the casein, thus giving rise to the
so-called spontaneous coagulation of milk.
Lactic fermentation. See under Fermentation.
[1913 Webster +PJC] |
C3H6OHCO2H
(gcide) | Oxybutyric \Ox`y*bu*tyr"ic\, a. [Oxy
(b) + butyric.] (Chem.) Hydroxybutyric; designating any one
of a group of metameric acids ((C3H6.OH).CO2H).
[1913 Webster] |
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