By Louis Gutierrez
Updated Aug 30, 2022
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Baking soda, or sodium bicarbonate, is a mild base that effectively neutralizes acids, including the strong hydrochloric acid (HCl). When mixed, the reaction converts HCl into harmless by‑products such as salt, water, and carbon dioxide. With the correct precautions, you can safely neutralize HCl on any surface.
A simple teaspoon of baking soda dissolved in 8 oz of water can soothe heartburn caused by excess stomach HCl.
Identify how much hydrochloric acid has contacted the item. Most industrial use is less than one gallon per item.
Wear rubber gloves and safety goggles to protect skin and eyes from splashes.
Move the item outdoors or to a well‑ventilated space to avoid inhaling fumes.
For every gallon of HCl, use 5 ½ lbs of baking soda. Dissolve in water at a 1:10 ratio (one part soda to ten parts water). A bucket or large container works well.
Introduce the solution slowly—no more than ½ gallon per addition. After each pour, wait five minutes to allow the reaction to complete before adding more.
Test with a small sample: mix 3 Tbsp of baking soda in ½ cup water. If fizzing occurs on the item, add more solution. No reaction means the acid has been neutralized and the item is safe to handle.
Do not touch hydrochloric acid with bare skin—burns can occur. If contact happens, immediately apply baking soda and seek medical help.
