Home Chemistry Chemical Formula Of Dilute Hydrochloric Acid

Chemical Formula Of Dilute Hydrochloric Acid

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Dilute hydrochloric acid is a common chemical solution used in various industrial and laboratory applications. It is also known as muriatic acid, and its chemical formula is HCl. In this article, we will explore the details of dilute hydrochloric acid, including its properties, uses, and safety precautions.

Properties of Dilute Hydrochloric Acid

Dilute hydrochloric acid is a clear, colorless liquid with a pungent odor. It is highly corrosive and reactive with most metals, producing hydrogen gas when it reacts with them. The acid has a pH of less than 1 and is considered a strong acid due to its ability to dissociate completely in water.

Uses of Dilute Hydrochloric Acid

Dilute hydrochloric acid has many uses in various industries. It is commonly used in the production of organic and inorganic compounds, including fertilizers, dyes, and pharmaceuticals. It is also used as a cleaning agent for removing rust, scale, and other impurities from metals. In laboratories, dilute hydrochloric acid is used for experiments and as a reagent for testing various substances.

Precautions When Using Dilute Hydrochloric Acid

Due to its highly corrosive nature, dilute hydrochloric acid should be handled with care. It can cause severe burns if it comes into contact with skin or eyes. When using the acid, it is essential to wear protective gear such as gloves, goggles, and a lab coat. The acid should be stored in a tightly sealed container away from heat and direct sunlight.

How to Dilute Hydrochloric Acid

To dilute hydrochloric acid, you need to add water to the concentrated acid slowly. It is crucial to add the acid to the water and not the other way around. This is because the reaction between the two can be highly exothermic, causing the mixture to splash and release toxic fumes. The ideal concentration for dilute hydrochloric acid is between 5% and 10%.

Chemical Reaction of Dilute Hydrochloric Acid

When dilute hydrochloric acid reacts with a metal, it produces hydrogen gas and a metal chloride. For example, when it reacts with zinc, the chemical equation is: HCl + Zn → ZnCl2 + H2 When dilute hydrochloric acid reacts with a base such as sodium hydroxide, it produces water and a salt. The chemical equation for this reaction is: HCl + NaOH → NaCl + H2O


In conclusion, dilute hydrochloric acid is a highly reactive and corrosive chemical solution with many industrial and laboratory applications. It is essential to handle it with care, wear protective gear, and store it safely. Dilute hydrochloric acid can be diluted with water, and its chemical reactions with metals and bases produce hydrogen gas, metal chlorides, water, and salts.

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