Ácido Oxálico

Ácido Oxálico

Para el lavado químico de Equipos de Diálisis

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Oxalic acid, also called ethanedioic acid, is a colorless, crystalline solid with the chemical formula HO2CCO2H that crystallizes with two water molecules. It loses its water of crystallization at 100 ºC, and anhydrous acid melts at 190 °C.

It is abundantly present in many plants in the form of potassium salts (oxalates). Its calcium salt is also found in certain vegetables.

Oxalic acid can be prepared by oxidizing organic compounds such as sucrose or cellulose, but at present it is manufactured from a synthetic compound: sodium formate (the sodium salt of formic acid).

It is used due to its reducing power, especially of magnesium and calcium. It is also used as a descaling agent.


  • Due to its descaling action, oxalic acid is used for the chemical cleaning of dialysis equipment (in 2.5% to 5% solutions, depending on the equipment manufacturer’s recommendations).
  • Besides descaling, oxalic acid eliminates ferrous ions (Fe).

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