Titration: A procedure for determining the amount of some unknown substance (the analyte) by quantitative reaction with a measured volume of a solution of precisely known concentration (the titrant).

 

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Titration: A procedure for determining the amount of some unknown substance (the analyte) by quantitative reaction with a measured volume of a solution of precisely known concentration (the titrant).

Complexometric Titration: A titration based on a reaction between a ligand and a metal ion to form a complex. For example, free Ca2+ in milk powder can be determined by titrating a milk powder sample with EDTA soluti . . . View Full Definition

Redox Titration: A titration based on a redox reaction. For example, iron in water can be determined by converting dissolved iron to Fe2+ and titrating the solution with potassium permanganate (kmno4), a pow . . . View Full Definition

Titration Curve: A plot that summarizes data collected in a titration. A linear titration curve plots moles of analyte (or, some quantity proportional to moles of analyte) on the Y axis, and the volume of ti . . . View Full Definition

Back Titration: Determining the concentration of an analyte by reacting it with a known number of moles of excess reagent. The excess reagent is then titrated with a second reagent. The concentration of the . . . View Full Definition

Titrant: The substance that quantitatively reacts with the analyte in a titration. The titrant is usually a standard solution added carefully to the analyte until the reaction is complete. The amount . . . View Full Definition

Primary Standard: A stable, high-purity material used in titrations and other chemical analyses to prepare solutions of precisely known concentration, or to determine the concentrations of substances which re . . . View Full Definition

Endpoint: The experimental estimate of the equivalence point in a titration.

Equivalence Point: The equivalence point is the point in a titration when enough titrant has been added to react completely with the analyte.

Organochromic Indicators: Colored organic compounds that change color when they chelate different metals. Organochromic indicators are used to determine the endpoint in complexometric titrations. Examples of organoch . . . View Full Definition