এটা মূলত Dry Ice. এর তাপমাত্রা -78.5 degree Centrigrade অথবা = -80 degree entrigrade
But ans to -110 degree centrigrade dea ace.
When dry ice was mixed with diethyl ether, it was called “Thilorier’s mixture”,presumably since Thilorier had noted in 1835 that a mixture of liquid carbon dioxide and ether produced extreme cold when sprayed on objects. It was subsequently found that under reduced pressure, temperatures as low as -110 °C could be maintained.
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