LIQUEFIED OZONE.
One of the greatest triumphs of chemical science is the liquefaction of ozone.
A reservoir containing oxygen at a temperature of 9.4 deg. below zero (Fahr.) was charged with ozone, and subjected to hydraulic pressure applied by means of a column of mercury. The gas immediately turned to an azureblue colour, which deepened in shade as the pressure increased. The ozone liquefied under a pressure of 75 atmospheres, while 300 are necessary to liquefy pure oxygon. The curious fact also came out that ozone is an explosive gas, for unless carefully and slowly compressed at a low temperature it explodes with a yellow flume. Its ethereal blue tint is very beautiful, and probably accounts lor the colour of the sky.
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Bibliographic details
Star (Christchurch), Issue 16471, 6 July 1921, Page 6
Word Count
122LIQUEFIED OZONE. Star (Christchurch), Issue 16471, 6 July 1921, Page 6
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