Hydrochloric acid pure grade (HCl) is a chemical compound that is an aqueous solution of hydrogen chloride gas. It has strong corrosive properties, a strong, irritating odour, and colourless to pale yellow. Hydrochloric acid pure grade is produced by direct synthesis of elements by burning chlorine in hydrogen and then absorbing hydrogen chloride into water. The product is marketed in a 37% to 38% solution.
Hydrochloric acid is of a very high quality due to its low contamination content resulting from the production methods at the synthesis plant (chlorine combustion in hydrogen). This highest quality product is shown by conforming the requirements of latest European Pharmacopea.
In the pharmaceutical industry, this product is used for the synthesis of drugs such as ascorbic acid and para-aminobenzoic acid.