![]() ![]() Take equal parts of sweet salt, Bitter salt, Ṭabarzad salt, Andarānī salt, Indian salt, salt of Al-Qilī, and salt of Urine. In doing so, al-Razi may have stumbled upon a primitive method for producing hydrochloric acid, as perhaps manifested in the following recipe from his Kitāb al-Asrār ("The Book of Secrets"): 865–925, Latin: Rhazes) conducted experiments with sal ammoniac ( ammonium chloride) and vitriol (hydrated sulfates of various metals), which he distilled together, thus producing the gas hydrogen chloride. ![]() In the early tenth century, the Persian physician and alchemist Abu Bakr al-Razi ( c. Hydrochloric acid is an important laboratory reagent and industrial chemical. It is a component of the gastric acid in the digestive systems of most animal species, including humans. It is a colorless solution with a distinctive pungent smell. Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride with the chemical formula HCl (aq).
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