Milk of Magnesia, which is a common name for magnesium hydroxide suspension, typically has a pH that ranges from about 8.5 to 9.0. This alkaline pH is due to the presence of magnesium hydroxide, which dissociates in water to produce hydroxide ions.
The higher pH of Milk of Magnesia makes it useful as an antacid, as it can neutralize excess stomach acid. It works by raising the pH level in the stomach, providing relief from heartburn and indigestion. However, it’s important to note that while Milk of Magnesia is effective for temporary relief, it should be used according to dosage instructions to avoid potential side effects.
In summary, Milk of Magnesia has an alkaline pH, making it effective for treating conditions related to excess stomach acids.