A Manual of the Chemistry of the Carbon Compounds

188 THE CHEMT8TKY OF
horns pentachloride it is converted into ethene dichloride, and ou
Eeating it with zinc chloride it yields acetaldehyde •'—•
CH20H CH3
I -H.O-I
CHgOH COH
By the action of concentrated hydriodic acid it is reduced to ethyl
iodide:—
i OTTT n TT T i OTT (\ t T **
( Cl
Ethene Chlorhgdrate or Ethene ClUorhydrin C2H4 •! QJJ is formed
by shaking etbene with an aqueous solution of aqueous hypochlorous
acid, or by heating glyeol with hydrochloric acid;—•
rTTf0H.Cl) PTTfCl ,TTO
It is a colourless liquid, miscible with water, and boiling at 128°.
On heating it with potassium iodide it is converted into ethene iodohydrate
C«H4(0H)I, a heavy liquid which is decomposed on heating.
When sodium amalgam is added to an aqueous solution of ethene
chlorhydrate, ethyl alcohol is formed. Oxidizing agents convert the
chlovhydrate into monochloracetic acid.
JSthene Oxide C2H4O.—A solution of caustic potash acts violently
on ethene chlorhydrate, ethene oxide being formed:—
CH.C1 CH2
| +KOH=| >O + H2O
CHgOH OS/
Ethene oxide is a liquid boiling at 13°*5 ; it is miscible with water
and has basic properties. Thus it combines readily with acids :—
It precipitates also the solutions of many metallic salts, as those of
magnesium, aluminium, copper, &c:—
CuCl2 + 2C 2H 40 = Cti(OH)i, + 2C2H4
When its aqueous solution is heated it combines with water, glyeol
being formed; it also combines with glyeol, with the formation of
diethene glyeol:—
OH
0
OH