A still for liquids of high boiling poin
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Hickman, K.
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Article
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1929
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Wiley (John Wiley & Sons)
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To aid thc distillation undcr rctluccd prcssurc of unstalJlc orgauic liquids it is customnry to draw air or other gas tlirough tlic nppnintus. This prevents bunipiiig nnd increases tlic yield of distillnte by rcducing tho partial prcssurc. l'lierc are, hoircvcr, sonic liquids so difficult to hnndlc