In chemistry, titratable acid generally refers to any acid that can lose one or more protons in an acid–base reaction.
The term is used slightly differently in other fields. For example, in renal physiology, titratable acid is a term to describe acids such as
phosphoric acid
Phosphoric acid (orthophosphoric acid, monophosphoric acid or phosphoric(V) acid) is a colorless, odorless phosphorus-containing solid, and inorganic compound with the chemical formula . It is commonly encountered as an 85% aqueous solution, ...
,
sulfuric acid
Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (English in the Commonwealth of Nations, Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, ...
which are involved in
renal physiology
Renal physiology (Latin language, Latin ''renes'', "kidneys") is the study of the physiology of the kidney. This encompasses all functions of the kidney, including maintenance of acid-base balance; regulation of fluid balance; regulation of sodiu ...
. It is used to explicitly exclude
ammonium
Ammonium is a modified form of ammonia that has an extra hydrogen atom. It is a positively charged (cationic) polyatomic ion, molecular ion with the chemical formula or . It is formed by the protonation, addition of a proton (a hydrogen nucleu ...
(NH
4+) as a source of acid, and is part of the calculation for
net acid excretion
NET may refer to:
Broadcast media
United States
* National Educational Television, the predecessor of the Public Broadcasting Service (PBS) in the United States
* National Empowerment Television, a politically conservative cable TV network, ...
.
It gets its name from the use of
NaOH in
acid–base titration to estimate the quantity of titratable acid.
[{{cite book, title= Essentials of Human Physiology, first= Thomas M. , last= Nosek, chapter=Section 7/7ch12/7ch12p27 , chapter-url=http://humanphysiology.tuars.com/program/section7/7ch12/7ch12p27.htm , archive-url=https://web.archive.org/web/20160303095156/http://humanphysiology.tuars.com/program/section7/7ch12/7ch12p27.htm, archive-date=2016-03-03 - "Regeneration of Bicarbonate, the Role of Titratable Acid: Definition of Titratable Acid"]
See also
*
Acids in wine
References
Acid–base physiology