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GCSE Chemistry · key term
A mixture designed as a useful product, with components combined in carefully measured quantities to give the product its required properties.
Used by AQA and OCR
Specification 4.8.1.2, 4.10.4.2 · Paper 2
Revise: FormulationsA formulation is a mixture that has been designed as a useful product. It is often a complex mixture containing several different chemicals.
A mixture made with chosen ingredients in suitable proportions to give particular properties or functions.
Specification C2.1e · Paper 1 (Foundation), Paper 3 (Higher)
A mixture designed as a useful product, with its components combined in carefully measured quantities to give required properties.
Revise: Formulations and MixturesA formulation is a mixture that has been deliberately designed as a useful product. Chemists select the components because each has a purpose, then combine them in carefully measured quantities. The proportions matter because they determine the finished material's properties and help manufacturers make repeated batches that behave consistently.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A mixture designed as a useful product by combining components in carefully measured proportions.
Revise: FormulationsA formulation is a mixture designed for a purpose: its components are selected for particular jobs and combined in carefully measured proportions. Following the same formulation helps a manufacturer make a product with consistent properties.
When asked to identify a formulation, use the information given: look for a useful product made from several components in carefully measured quantities, with each component serving a purpose.
Do not describe a formulation as a compound. Its components are mixed rather than chemically bonded.
Do not describe an NPK fertiliser as one compound: it is a formulation containing compounds of nitrogen, phosphorus and potassium.
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