Chemistry A-Level
Purity and recrystallisation
What Purity and recrystallisation means in Chemistry A-Level, as defined for OCR.
Definition of Purity and recrystallisation
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Reference: OCR
The solid is recrystallised to remove impurities, because impurities lower and broaden the melting range, so the melting point is sharp and reliable.
Topics that use Purity and recrystallisation
- Carbonyl compounds (OCR A-Level)
Related terms
- 2,4-dinitrophenylhydrazine test
- 2,4-dinitrophenylhydrazone
- Acidified dichromate(VI) as oxidising agent
- acidified potassium dichromate(VI)
- Aldehyde versus ketone distinction
- Carbon–carbon bond formation
- Carbonyl group confirmation
- Carbonyl group detection
Using Purity and recrystallisation in the exam
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