Sistema tampón de fosfato

H2PO4 ⇌ HPO42− + H+

Descripción general

The dihydrogen phosphate/hydrogen phosphate buffer system operates near pH 7.2, making it ideal for biological applications. With pKa2 = 7.2, it buffers effectively between pH 6.2 and 8.2. This is the buffer system used in phosphate-buffered saline (PBS), the most common buffer in biology.

Participantes

Rol Sustancia Coeficiente Estado
Reactivo Ácido fosfórico H₃PO₄ 1 (aq)

Ejemplo cotidiano

Phosphate buffers help maintain the pH of many biological fluids and are used in nearly every molecular biology laboratory.

Importancia industrial

Esencial en bioquímica, fermentación industrial, formulación farmacéutica y análisis clínico de pH.

Preguntas frecuentes

What is the equation for Sistema tampón de fosfato?
The balanced equation is: H₂PO₄⁻ ⇌ HPO₄²⁻ + H⁺.
What type of reaction is Sistema tampón de fosfato?
Sistema tampón de fosfato is a ácido-base reaction. It is reversible under certain conditions.
Is Sistema tampón de fosfato exothermic or endothermic?
Sistema tampón de fosfato is endothermic (absorbs energy).