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Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungent smell. It is classified as a strong acid. It is a component of the gastric acid in the digestive systems of most animal species, including humans.
Aqua regia first appeared in the De inventione veritatis ("On the Discovery of Truth") by pseudo-Geber (after c. 1300), who produced it by adding sal ammoniac (ammonium chloride) to nitric acid. [ 6 ] [ d ] The preparation of aqua regia by directly mixing hydrochloric acid with nitric acid only became possible after the discovery in the late ...
One procedure for acid-base neutralization consists in pouring the piranha solution into a sufficiently large glass container filled with at least five times the solution's mass of ice (for cooling the exothermic reaction, and also for dilution purposes), then slowly adding 1M sodium or potassium hydroxide solution until neutralized.
Another important development was the discovery by pseudo-Geber (in the De inventione veritatis, "On the Discovery of Truth", after c. 1300) that by adding ammonium chloride to nitric acid, a strong solvent capable of dissolving gold (i.e., aqua regia) could be produced. [23]
Hydrochloric Acid / Hydrogen Chloride / muriatic acid: Toilet Bowl Cleaner 7722-84-1: Hydrogen peroxide: Oxidizer, Polymer Breaker 79-14-1: Hydroxy acetic acid: 35249-89-9: Hydroxyacetic acid ammonium salt: 9004-62-0: Hydroxyethyl cellulose: Viscosifier 5470-11-1: Hydroxylamine hydrochloride: 39421-75-5: Hydroxypropyl guar: Viscosifier 35674-56-7
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