Attempted Robbery In Cape Town
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For more on marking an answer as the "Best Answer", please visit our FAQ.The gases are normally separated by cooling air. The different components liquify at different temperatures. Water first, then carbon dioxide, followed by oxygen (minus 180 C) and nitrogen (minus 196 C). The hardest to liquify is helium at about minus 270 C.
The liquid gases are transported and stored in large metal vacuum insulated flasks.