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Residue

Key Stage 3

Meaning

Residue is the insoluble solid which gets stuck behind a filter during the separation of a mixture by filtration.

FiltrationDiagram.png
This diagram shows how the insoluble solid gets stuck in the filter paper and is called a Residue, while the liquid passes through the filter paper into the conical flask and is called the filtrate.

References

Edexcel

Residue, page 7, GCSE Chemistry, Pearson, Edexcel

OCR

Residue, page 42, Gateway GCSE Chemistry, Oxford, OCR