Of, pertaining to, or containing, nitrogen; specifically, designating any one of those compounds in which, as contrasted with nitrous compounds, the element has a higher valence; as, nitric oxide; nitric acid
A transparent, colourless to pale yellow, fuming corrosive liquid, HNO3; a highly reactive oxidizing agent used in the production of fertilizers, explosives, and rocket fuels and in a wide variety of industrial processes; once called aqua fortis
Nitric acid is a strong colourless acid containing nitrogen, hydrogen, and oxygen. A transparent, colorless to yellowish, fuming corrosive liquid, HNO, a highly reactive oxidizing agent used in the production of fertilizers, explosives, and rocket fuels and in a wide variety of industrial metallurgical processes. Also called aqua fortis. a powerful acid that is used in explosives and other chemical products (nitrique, from nitre a chemical substance, from nitrum, from ntry). Inorganic compound, colourless, fuming, highly corrosive liquid, chemical formula HNO3. A common laboratory reagent, it is important in the manufacture of fertilizers and explosives (including nitroglycerin), as well as in organic syntheses, metallurgy, ore flotation, and reprocessing of spent nuclear fuel. A strong acid, it is toxic and can cause severe burns. It attacks most metals and is used for etching steel and photoengraving
A gas formed by combustion under high temperature and high pressure in an internal combustion engine It changes into nitrogen dioxide in the ambient air and contributes to photochemical smog
a trace species that plays an important role in both tropospheric and stratospheric chemistry Natural sources of NO include emissions from microbes in soils, forest fires, and lightning discharges Unpolluted levels of NO are in the 0 01-0 05 ppb range, but emissions from high-temperature fuel combustion sources can increase levels by a factor of 1000 or greater, to 50-750 ppb in highly polluted areas NO is important in urban areas, where it can react with hydrocarbon species to form ozone and other secondary pollutants, which can jave negative health effects on humans and plants NO is also soluble in water, and contributes to acid rain (nitric acid) deposition In the stratosphere, NO is important in the catalytic destruction of ozone, and is very important in the series of events leading to polar ozone depletion during the Arctic and Antarctic springtime
A potent vasodilator, NO is released by endothelial cells, signaling smooth muscle cells to relax Nitrates and nitrites mediate their pharmacological effects by releasing NO Press the "back" button to return to where you came from
A colorless, poisonous gas, NO, produced as an intermediate during the manufacture of nitric acid from ammonia or atmospheric nitrogen and as a product of cellular metabolism. In the body, nitric oxide is involved in oxygen transport to the tissues, the transmission of nerve impulses, and other physiological activities. Colourless, toxic gas (NO), formed from nitrogen and oxygen by the action of electric sparks or high temperatures or, more conveniently, by the action of dilute nitric acid on copper or mercury. First prepared 1620 by Jan B. Helmont, it was first studied in 1772 by Joseph Priestley, who called it "nitrous air." An industrial procedure for the manufacture of hydroxylamine is based on the reaction of nitric oxide with hydrogen in the presence of a catalyst. The formation of nitric oxide from nitric acid and mercury is applied in a volumetric method of analysis for nitric acid or its salts. The gas is synthesized via enzyme-catalyzed reactions in humans and other animals, where it serves as a signaling molecule. Among its numerous biological roles, it causes dilation of blood vessels and as such is an important regulator of blood pressure. Nitric oxide is one of the components of air pollution generated by internal-combustion engines
A gas formed by combustion under high temperature and high pressure in an internal combustion engine; it is converted by sunlight and photochemical processes in ambient air to nitrogen oxide NO is a precursor of ground-level ozone pollution, or smog
A gas formed by combustion under high temperature and high pressure in an internal combustion engine; changes into nitrogen dioxide in the ambient air and contributes to photochemical smog
A small, membrane-permeant molecule that is thought to serve as a cellular signal Nitric oxide (NO) is formed by the enzyme nitric oxide synthase from the amino acid arginine
A gas produced by bacterial action in the soil and by high temperature combustion Nitrogen oxide is a component in the production of photochemical smog This colorless gas has the chemical formula is NO
A gas formed by combustion under high temperature and pressure in an internal combustion engine It changes into nitrogen dioxide in the ambient air and contributes to photochemical smog Back to Top
A gas formed in great part from atmospheric nitrogen and oxygen when combustion takes place under high temperature and high pressure Not in itself a pollutant, in the ambient air NO converts to nitrogen dioxide, a major contributor to photochemical smog Also see photochemical smog
(NO)-precursor of ozone, NO2, and nitrate; usually emitted from combustion processes Converted to nitrogen dioxide (NO2) in the atmosphere, it then becomes involved in the photochemical process and/or particulate formation