Purity, formulations and chromatography GapFill

Substances which contain only one kind of element or compound are called  potablerefinedpuresolid. They have a specific  melting pointflammabilitystrengthvolatility, which is often higher than that of  an unrefineda multiple-compounda blendedan impure substance, also known as  a fusiona mixturea polymeran amalgam. In a  fractionbrewformulationselection such as a cleaning product or a fertiliser, every chemical has a specific purpose and is present in its correct  statequantitytemperaturepressure.

Many mixtures containing coloured compounds can be separated using  condensationfiltrationchromatographypolymerisation. During this process, a  constantsolidfirmstationary phase, such as paper, is placed in a  fluidmobileflexiblechangeable phase, such as water. The substances travel different  patternsdistancesdirectionsspeeds up the paper. Dividing the distance travelled by a substance by the distance travelled by the solvent gives the  pHR_f valuepercentageD_s value.