Fractional distillation of liquid air (which is gotten by cooling air till it becomes a liquid at very low temperatures approx -194.35°C) is also used in air separation as by allowing the temperature of the liquid air to rise. Each gas will distill off at its own boiling point. , which through fractional distillation the air which has become liquid producing liquid oxygen, liquid nitrogen, and high purity argon. Distillation of chlorosilanes also enable the production of high-purity silicon for use as a semiconductor.
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