Titration
![A Winkler titration to determine the concentration of dissolved oxygen in a water sample. The dissolved oxygen has been converted to an equivalent amount of iodine, which is being titrated with thiosulfate using a starch indicator. The blue color in the flask will disappear when all the iodine has been converted to iodide.](/Images/godic/202502/20/Winkler_Titration_Prior_Titration5803.jpg")
![Analysis of soil samples by titration](/Images/godic/202502/20/Titration_for_Soil5803.JPG")
![A typical titration curve of a diprotic acid titrated with a strong base. Shown here is oxalic acid titrated with sodium hydroxide. Both equivalence points are visible.](/Images/godic/202502/20/Oxalic_acid_titration_grid.svg5803.png")
![Methyl orange](/Images/godic/202502/20/Acidobazna_titracija_0045803.jpg")
Titration, also known as titrimetry, is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of an identified analyte. Since volume measurements play a key role in titration, it is also known as volumetric analysis. A reagent, called the titrant or titrator is prepared as a standard solution. A known concentration and volume of titrant reacts with a solution of analyte or titrand to determine concentration. The volume of titrant reacted is called titration volume.