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Extension 2 - crystallisation or recrystallisation

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Extension 2 - crystallisation or recrystallisation

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Watch the video and explain the differences between the techniques of crystallisation and recrystallisation

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Factors affecting the purity of products of recrystallisation

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Factors affecting the purity of products of recrystallisation

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Read the powerpoint slides about Practical 1 and make notes on the theory behind recrystallisation and the factors affecting the purity of the recrystallised product

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Watch this video - how is this different from the method we are using? How is it similar

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Lab techniques: Recrystallisation with hot filtration

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Watch this video on the use of the melting point apparatus

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The Stuart SMP10 Melting Point Apparatus

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What are the risks and how can they be controlled? Draw a table, then check back to the practical method section on risks. Did you miss anything?

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Read through the method for the practical (Page 1 and 2) and then go back to the video. Match the steps in the practical to the steps in the video. Which step is missing from our method?

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Recrystallisation of benzoic acid - purification

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Recrystallisation of benzoic acid - purification

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Watch this video explaining the technique of recrystallisation

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Organic Practical Setup 8. Recrystallisation of organic solids.