What is the pH value of ‘Milk of Magnesia’?

By BYJU'S Exam Prep

Updated on: September 25th, 2023

  1. 1.2
  2. 7.4
  3. 10.5
  4. 14

The pH value of ‘Milk of Magnesia’ is 10.5. The magnesium substance that functions as an antacid is called milk of magnesium.

pH value of Milk of Magnesia

Charles Henry Phillips, an English chemist, coined the phrase milk of magnesia in 1872.

The nature of Milk of Magnesia is simple.

The Milk of Magnesia has a pH of 10.5 in it.

  • A pH scale is used to express a substance’s acidic or alkaline nature based on the quantity of hydrogen ions present in its solution.
    • Soren Sorensen made the discovery of the pH scale.
    • The acids have a pH value less than 7. (0 to 7)
    • A sour flavour is typically produced by acidic compounds.
    • The bases have a pH value greater than 7. (7 to 14)
    • Usually, base compounds have a bitter flavour.
    • The neutral material has a pH level of 7.
  • The pH value of the pure water is 7.
  • The pH value of the blood is close to 7.4.


What is the pH value of ‘Milk of Magnesia’? 1. 1.2 2. 7.4 3. 10.5 4. 14

10.5 is the pH value of ‘Milk of Magnesia’. The Mg substance in the milk acts as an antacid. It was coined by Charles Henry Philips

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