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Mer*cap"tan (?), n. [F., fr. NL.
mercurius mercury + L. captans, p. pr. of
captare to seize, v. intens. fr. capere.]
(Chem.) Any one of series of compounds, hydrosulphides of
alcohol radicals, in composition resembling the alcohols, but
containing sulphur in place of oxygen, and hence called also the
sulphur alcohols. In general, they are colorless liquids
having a strong, repulsive, garlic odor. The name is specifically
applied to ethyl mercaptan, C₂H₅SH. So called
from its avidity for mercury, and other metals.

Mer*cap"tide (? or ?), n.
(Chem.) A compound of mercaptan formed by replacing its
sulphur hydrogen by a metal; as, potassium mercaptide,
C₂H₅SK.

Mer"cat (?), n. [L. mercatus :
cf. It. mercato. See Market.] Market; trade.
[Obs.] Bp. Sprat.

Mer`ca*tan"te (?; It. ?), n. [It. See
Merchant.] A foreign trader.


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