Titratable acid
Encyclopedia
Titratable acid is a term to describe acids such as phosphoric acid
, sulfuric acid
which are involved in renal physiology
.
It is used to explicitly exclude ammonium
(NH4+) as a source of acid, and is part of the calculation for net acid excretion
.
It gets its name from the use of NaOH in acid-base titration
to estimate the quantity of titratable acid.
Phosphoric acid
Phosphoric acid, also known as orthophosphoric acid or phosphoric acid, is a mineral acid having the chemical formula H3PO4. Orthophosphoric acid molecules can combine with themselves to form a variety of compounds which are also referred to as phosphoric acids, but in a more general way...
, sulfuric acid
Sulfuric acid
Sulfuric acid is a strong mineral acid with the molecular formula . Its historical name is oil of vitriol. Pure sulfuric acid is a highly corrosive, colorless, viscous liquid. The salts of sulfuric acid are called sulfates...
which are involved in renal physiology
Renal physiology
Renal physiology is the study of the physiology of the kidney. This encompasses all functions of the kidney, including reabsorption of glucose, amino acids, and other small molecules; regulation of sodium, potassium, and other electrolytes; regulation of fluid balance and blood pressure;...
.
It is used to explicitly exclude ammonium
Ammonium
The ammonium cation is a positively charged polyatomic cation with the chemical formula NH. It is formed by the protonation of ammonia...
(NH4+) as a source of acid, and is part of the calculation for net acid excretion
Net acid excretion
In renal physiology, net acid excretion is the net amount of acid excreted in the urine per unit time. Its value depends on urine flow rate, urine acid concentration, and the concentration of bicarbonate in the urine...
.
It gets its name from the use of NaOH in acid-base titration
Acid-base titration
An acid-base titration is the determination of the concentration of an acid or base by exactly neutralizing the acid/base with an acid or base of known concentration. This allows for quantitative analysis of the concentration of an unknown acid or base solution...
to estimate the quantity of titratable acid.