A substance is a chemical element and its compounds in their natural state or the result of a manufacturing process.
In a manufacturing process, a chemical reaction is usually needed to form a substance.
Chemical (A) and chemical (B) are put together and react to form the substance C.
Compound C is a substance made by the reaction of A and B.
Examples of substances are:
- Solvents, such as acetone
- Dyes and pigments
- Diesel and other fuels.
- REACH registration obligations only apply to substances.