ROSENFELD IMAGES LTD / SCIENCE PHOTO LIBRARY ROSENFELD IMAGES LTD / SCIENCE PHOTO LIBRARY
Chemical factory. Distillation towers at a chemical factory. Distillation is the process of using heat to separate the different components within a mixture. The heat causes the more volatile components to vaporise more quickly than other components. These vapours can be collected and condensed by cooling, resulting in a solution which has a higher proportion of volatile chemicals than the original one.
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