6 | 6.00 | 2960 | 0.014 |
|____________________|____________|____________|____________|___________|
CHEMICAL PROPERTIES.--It is unnecessary for the purpose of this work to
give an exhaustive account of the general chemical reactions of acetylene
with other bodies, but a few of the more important must be referred to.
Since the gases are liable to unite spontaneously when brought into
contact, the reactions between, acetylene and chlorine require attention,
first, because of the accidents that have occurred when using bleaching-
powder (_see_ Chapter V.) as a purifying material for the crude gas;
secondly, because it has been proposed to manufacture one of the products
of the combination, viz., acetylene tetrachloride, on a large scale, and
to employ it as a detergent in place of carbon tetrachloride or carbon
disulphide. Acetylene forms two addition products with chlorine,
C_2H_2Cl_2, and C_2H_2Cl_4. These are known as acetylene dichloride and
tetrachloride respectively, or more systematically as dichlorethylene and
tetrachlorethane. One or both of the chlorides is apt to be produced when
acetylene comes into contact with free chlorine, and the reaction
sometimes proceeds with explosive violence.
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