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9 Cards in this Set
- Front
- Back
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What is recrystallization good for |
Purifying organic solids |
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What is the problem if the solvent and solute polarity are too close in recrystallization |
Solute will remains dissolved at a lower temperature, giving a lower yield |
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What are the two cases of ideal impurity solubility |
Insolvable in hot solvent so they remain and can be gravity filtered or soluble in cold so they remain in solution apon cooling |
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Crashing out |
Solution becomes supersaturated upon cooling and solute crystallizes our |
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Why don’t soluble impurity’s crash out |
They are not concentrated enough |
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Why is COLD solvent used when rinsing recrystallization product |
So that product does not redissolve |
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What solvent was used in lab one |
Toluene |
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What was the product of lab one |
Vanillin |
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Draw vanillin |
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