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Hydrochloric Acid - Acids - Chemicals & Reagents

Hydrochloric Acid

Also Known As Hydrochloric Acid and Aqueous Hydrogen Chloride
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Pure Hydrochloric Acid (HCl) is an inorganic acid. It is also known as Hydrochloric Acid and Aqueous Hydrogen Chloride. It is a clear, colorless to light yellow liquid at room temperature with a potentially irritating odor. It has an approximate Ka of 1.3 x 10-6, and as such Hydrochloric Acid is a strong acid.

Hydrochloric Acid has a wide range of uses including as a lab reagent, in the manufacture of polyvinyl chloride (PVC), as a cleaning agent especially on masonry, in 'steel pickling', a process to clean and purify steel, and in pH control in both industrial and home use such as the regulation of the acidity of swimming pools. It is a 'workhorse' reagent in the chemical industry with a multitude of uses.

Industries that use Hydrochloric Acid

Common Uses and Applications for Hydrochloric Acid

  • Regent in the chemistry lab
  • Industrial cleaning
  • Precursor in chemical manufacture
  • Metal processing (steel pickling)
  • Controlling pH in domestic and industrial situations