Standard solution

In analytical chemistry, a standard solution (titrant or titrator) is a solution containing an accurately known concentration. Standard solutions are generally prepared by dissolving a solute of known mass into a solvent to a precise volume, or by diluting a solution of known concentration with more solvent.^[1]

Standard solutions are used to determine the concentration of solutions with unknown concentration, such as solutions in titrations. The concentrations of standard solutions are normally expressed in units of moles per litre (mol/L, often abbreviated to M for molarity), moles per cubic decimetre (mol/dm³), kilomoles per cubic metre (kmol/m³), grams per milliliters (g/mL), or in terms related to those used in particular titrations (such as titres).

^ Freiser, Henry; Nancollas, George H.; International Union of Pure and Applied Chemistry, eds. (1987). Compendium of analytical nomenclature: definitive rules 1987 (2nd ed.). Oxford [Oxfordshire] ; Boston: Blackwell Scientific Publications. ISBN 978-0-632-01907-6.

[1] Freiser, Henry; Nancollas, George H.; International Union of Pure and Applied Chemistry, eds. (1987). Compendium of analytical nomenclature: definitive rules 1987 (2nd ed.). Oxford [Oxfordshire] ; Boston: Blackwell Scientific Publications. ISBN 978-0-632-01907-6.

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