NOx is a common term for the more reactive nitrogen oxides and includes nitric oxide (NO) and nitrogen dioxide (NO2), but excludes, for example, nitrous oxide (N2O). NO2 is a reddish brown, highly reactive gas that is formed in the air by the oxidation...

A recently-developed technique for removing nitrogen oxides from waste gases makes use of a common, nontoxic organic compound known as cyanuric acid, C3H3N3O3. When heated to temperatures of about 660°F (345°C), cyanuric acid decomposes...

Five oxides of nitrogen are known: N2O, NO, N2O3, NO2, and N2O5. Environmental scientists usually refer to only two of these, nitric oxide and nitrogen dioxide, when they use the term nitrogen oxides. The term may also be used, however, for any other...

The term applied collectively to any of the seven combinations of nitrogen and oxygen. These are as follows: •   Nitric oxide (NO). •   Nitrogen dioxide (NO2). •   Nitrogen trioxide (NO3)....

The term nitrogen oxide typically refers to any binary compound of oxygen and nitrogen, or to a mixture of such...

Researchers at the Univ. of Delaware (Newark; www.udel.edu) have designed a novel material for use in catalytic converters that is cheaper and more effective in the storage and reduction of nitrogen oxides emissions than the currently used platinum-based catalysts. The formulation uses cobalt as...

New catalyst technologies to reduce emissions of nitrous oxide ([N.sub.2O]) and nitrogen oxides ([NO.sub.x]) into the atmosphere have been developed at Air Products. The nitrous oxide removal catalysts use zeolites loaded with isolated metal ions (for example, cobalt or copper) to produce...

Switching from gasoline to ethanol _ touted as a green alternative at the pump _ may create dirtier air, causing slightly more smog-related deaths, a new study says.Nearly 200 more people would die yearly from respiratory problems if all vehicles in the United States ran...