AAT Bioquest

Is magnesium chloride an acid or base?

Posted May 20, 2023


Magnesium chloride is slightly acidic in nature. 

Magnesium chloride (MgCl2) is formed by the reaction between a strong acid (HCL) and a strong base Mg(OH)2 The resultant salt that is formed (MgCl2) is slightly acidic. It is made up of a very weak conjugate acid (Mg2+) and a very weak conjugate base (Cl−).

Additional resources

MgCl2 and its applications in organic chemistry and biochemistry: a review

Polymerase Chain Reaction (PCR)

Helixyte™ Green *20X Aqueous PCR Solution*