Key term for OCR GCSE Chemistry B, used in Separation and purity.
A substance present in small amounts in another substance, which alters its physical properties.
Impurity appears in OCR GCSE Chemistry B revision content for Chemical analysis, especially Separation and purity and Melting point and purity.
Create a free account to access OCR GCSE Chemistry B revision notes, track progress, and practise related key terms.
