Citric Acid and Sodium Hydroxide

C6H8O7 + 3NaOH → Na3C6H5O7 + 3H2O

Visão geral

Citric acid is a triprotic acid that reacts with three equivalents of NaOH to form trisodium citrate and water. The three pKa values (3.13, 4.76, 6.40) create a broad buffering range. Sodium citrate is an important anticoagulant and food additive.

Participantes

Papel Substância Coeficiente Estado
Reagente Citric Acid C₆H₈O₇ 1 (aq)
Reagente Sodium Hydroxide NaOH 3 (aq)
Produto Water H₂O 3 (l)

Exemplo do cotidiano

Sodium citrate is used in blood collection tubes to prevent clotting and in soft drinks to provide a tart flavor.

Importância industrial

O citrato trissódico é utilizado em medicina transfusional, como conservante e emulsionante alimentar, em detergentes como substituto de fosfatos e em formulações farmacêuticas.

Propriedades

Tipo
Acid-Base
Reversível
Não
Energia
Exotérmico
ΔH
-155,0 kJ/mol

Reações relacionadas

Hydrochloric Acid and Barium Hydroxide Acetic Acid and Sodium Acetate Buffer System Acetic Acid Dissociation in Water Ammonia and Hydrochloric Acid Ascorbic Acid and Sodium Hydroxide Barium Hydroxide and Ammonium Thiocyanate (Endothermic) Carbonic Acid and Sodium Hydroxide Aluminum Hydroxide as Amphoteric Acid with NaOH Aluminum Chloride and Chloride Ion (Lewis Acid-Base) Formic Acid and Sodium Hydroxide

Frequently Asked Questions

What is the equation for Citric Acid and Sodium Hydroxide?
The balanced equation is: C₆H₈O₇ + 3NaOH → Na₃C₆H₅O₇ + 3H₂O.
What type of reaction is Citric Acid and Sodium Hydroxide?
Citric Acid and Sodium Hydroxide is a acid-base reaction.
Is Citric Acid and Sodium Hydroxide exothermic or endothermic?
Citric Acid and Sodium Hydroxide is exothermic (releases energy). The enthalpy change (ΔH) is -155.0 kJ/mol.