The principal method of manufacture of nitric acid is the catalytic oxidation of ammonia. In 1776 Antoine-Laurent Lavoisier showed that it contained oxygen, and in 1816 Joseph-Louis Gay-Lussac and Claude-Louis Berthollet established its chemical composition. HNO3--The chemical compound nitric acid (HNO3), otherwise known as aqua fortis or spirit of nitre, is an aqueous solution of hydrogen nitrate (anhydrous nitric acid). Nitric acid, (HNO3), colourless, fuming, and highly corrosive liquid (freezing point −42 °C [−44 °F], boiling point 83 °C [181 °F]) that is a common laboratory reagent and an important industrial chemical for the manufacture of fertilizers and explosives. Your email address will not be published. This colour appears due to the decomposition of Nitric acid to oxides of nitrogen and water. Our editors will review what you’ve submitted and determine whether to revise the article. ), The Secret Science of Solving Crossword Puzzles, Racist Phrases to Remove From Your Mental Lexicon. Copyright © 2020 Multiply Media, LLC. Other names it is called by are aqua fortis and spirit of nitre. In the method developed by the German chemist Wilhelm Ostwald in 1901, ammonia gas is successively oxidized to nitric oxide and nitrogen dioxide by air or oxygen in the presence of a platinum gauze catalyst. Why is melted paraffin was allowed to drop a certain height and not just rub over the skin? Nitric acid solutions are clear and turn yellowish in the presence of light. Anonymous. It is known as "concentrated nitric acid". Decomposes in alcohol, Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. Pure concentrated nitric acid is a colourless liquid at room temperature. CopyCopied, Validated by Experts, Validated by Users, Non-Validated, Removed by Users, Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, Predicted data is generated using the US Environmental Protection Agency’s EPISuite™, Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, ACD/Labs Percepta Platform - PhysChem Module, US Environmental Protection Agency’s EPISuite™, Compounds with the same molecular formula, Search Google for structures with same skeleton, 121 C / 69 mmHg (210.3616 °C / 760 mmHg) By using a mixture of acids or a dilute nitric solution, these metals can be dissolved. It causes severe skin burn. 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