What does acidimetry mean?
Acidimetry is the chemical process of determining how much acid is present in a sample, usually by titration. In a typical procedure, a measured quantity of an alkali of known concentration is added until it neutralizes the acid; the amount required then allows the acid’s concentration to be calculated. The term belongs mainly to analytical chemistry, quality-control laboratories, and other technical writing rather than everyday conversation. It is distinct from alkalimetry, the complementary procedure for measuring bases. Although the equipment and calculations may appear specialized, the central principle is straightforward: turn a general claim about acidity into a precise quantitative result. Acidimetry is also valuable in fields such as food analysis, pharmaceuticals, environmental testing, and industrial quality control. Recognizing the word helps readers interpret laboratory reports, descriptions of analytical methods, and historical discussions of chemical measurement, while illustrating the importance of titration in establishing the composition of unknown substances.
nounThe method of determining the amount or concentration of acid in a substance, usually by titration with an alkali of known concentration. It is a specialized form of quantitative chemical analysis.
- The analytical determination of the amount or concentration of acid in a substance, normally by titration.
"The laboratory used acidimetry to determine the acidity of the fruit juice."
"The laboratory used acidimetry to determine the acidity of the fruit juice."
"Her treatise on acidimetry explained how standard solutions are used to measure acids."
The plural is grammatically possible but rare; in technical writing, acidimetry is normally treated as an uncountable name for a method.
"The report included acidimetries of samples from three separate batches."
Acidimetry turns “how acidic?” into a number, one carefully measured reaction at a time.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of acidimetry
Acidimetry was formed in English from acid and the measuring element -imetry. The word acid ultimately comes from Latin acidus, meaning “sour,” while the measuring element derives through French -métrie from Greek metron, meaning “measure.” The term developed alongside the practice of using titration and precise reagents to determine chemical quantities.
Related word forms
How acidimetry is actually used
This is a formal, specialist term used chiefly in analytical chemistry, laboratory science, quality control, and technical historical writing. It is uncommon in everyday speech.
Easily confused with acidimetry
Acidimetry measures the amount of acid, whereas alkalimetry measures the amount of base or alkali.