Liquefying chlorine gas

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A 3D illustration of a square from the periodic table with the chemical symbol for

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Use this demonstration to produce liquid chlorine and compare it with bromine and iodine in their condensed state. Includes kit list and safety instructions.

In this experiment, students observe as chlorine gas is passed over a ‘cold finger’ condenser and liquefied using a dry ice/ethanol mixture. Yellow drops of liquid chlorine may then be collected for comparison with other Group 17 elements, specifically bromine and iodine.

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