A Manual of the Chemistry of the Carbon Compounds

18 THE CHEMISTRY OF
Ethyl Xanthate CS { i$?r? k produced
potassium xanthate are left together in an alcoholic solution for some
time. It is a colourless liquid of high refractive power, boiling at
200°, and possessing a powerful alliaceous odour.
Ethyl Ckforoformate or Ethyl Chlorocarhnate CO j Q0 w a colourless
liquid, possessing a suffocating smell, is produced by the action of
carbonyl chloride on alcohoL On mixing it with an alcoholic solution
of sodium sulphide, ethyl dicarbothioiiaU SJcoOCtik J
P roduce< *»
a colourless oil with a peculiar odour, and boiling at 180. By treating
it with caustic potash potassium carbonate and ethyl sulphide
( CO OH
are formed. Neither the free dicarbothionio acid S \ QQ'QJT nor any
of its metallic salts have been obtained.
con y
Ethyl Formate, Formic Ether Q rj f 0 is prepared by distilling a
mixture of alcohol and sulphuric acid with sodium formate. A
cheaper method consists in heating glycerin, oxalic acid, and alcohol
together in a flask, which is connected with a reversed condenser.
Formic acid is formed, which in the nascent state acts upon the
alcohol, ethyl formate and water being produced. Formic ether
boils at 55°, and possesses a fragrant smell like peaches; it is used
for the preparation of artificial rum and arrack.
When sodium is added to a mixture of chloroform and alcohol, the
so-called tribasio formic ether or dhyl orthoformate CE(OCjHJ)8 is
obtained:—
CHClj + 3C,H6.Olfa = 3ClNa + CH(0CaH6)8
This ether is a colourless liquid, possessing a pleasant smell, and
boiling at 146°. On heating it with aoetic aoid it yields ethyl formate
and ethyl acetate:—
01(00,11,),+
CYANOGEN COMPOUNDS 07 ETHYL,
ethyl Ethyl iodide Cyanide with silver cyanide, or but Ethyl is beat prepared Cariani
alcoholic ethyl
alcoholic
iodide solution with of silver chloroform cyanide, and but ethylamine is beat to prepared powdered by cau add
potash; a
solution lent violent reaction of
reaction
chloroform ensues,
and and and
ethylamine the the c cyanide
to powdered
distils over:
cau
CHC18 + CjH5.NH, - 3HCI