ChemicalBook CAS DataBase List NITROGEN DIOXIDE

NITROGEN DIOXIDE synthesis

7synthesis methods

Product Name:NITROGEN DIOXIDE
CAS Number:10102-44-0
Molecular formula:NO2*
Molecular Weight:46.01

Nitric oxide (nitrogen monoxide, mononitrogen monoxide; NO) and nitrogen dioxide [nitrogen peroxide, nitrogen tetroxide (NTO); NO2] are often found in dynamic equilibrium. Historically, these compounds sometimes have been erroneously described as “nitrous fumes.” In air, NO is readily oxidized to NO2, and liquefied NO2 (existing principally as its dimer nitrogen tetroxide, N2O4) releases NO2 at room temperature. Thus, these compounds are often grouped as nitrogen oxides (NOx). Other nitrogen oxides include nitrogen trioxide (NO3), dinitrogen trioxide (N2O3), and dinitrogen pentoxide (N2O5). Of all the oxides of nitrogen, NO2 is the most acutely toxic and has been most extensively studied. Accordingly, much of this section focuses on the toxicity of this compound.
Discoveries on the role forNOin biology and medicine led to a 1998 Nobel Prize for Robert Furchgott, Louis J. Ignarro, and Ferid Murad. Nitric oxide and NO2 occur naturally by bacterial degradation of nitrogenous compounds and to a lesser extent from fires, volcanic action, and fixation by lightning. NO has been the subject of intense and extensive research in a vast array of fields including chemistry, molecular biology, pharmaceuticals, and gene therapy. Formed endogenously, NO has a physiological role in blood flow regulation, thrombosis, and neurotransmission, and a pathophysiological role in inflammation, oxidative stress, and host defense. NO is derived from the amino acid L-arginine by five-electron oxidation catalyzed by NO synthase (requiring reduced pyridine nucleotides, reduced biopteridines, and calmodulin). The by-product, citrulline, is recycled back to L-arginine. In the bloodstream, NO binds primarily hemoglobin, is converted to NO3, and is eliminated in the urine with a half-life of 5–8 h.
Nitric oxide is manufactured by passing air through an electric arc or by oxidation of ammonia over platinum gauze.

10102-43-9
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Yield:10102-44-0 95%

Reaction Conditions:

with oxygen in gasKinetics;1% NO in air; 20--183°C; reaction time 6.6-384s;

References:

Briner, E;Pfeiffer, W.;Malet, G. [Journal de Chimie Physique et de Physico-Chimie Biologique,1924,vol. 21,p. 25 - 29] Schoenherr [Elektrotechnische Zeitschrift,1909,vol. 3,p. 400]

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10102-43-9
60 suppliers
$479.00/1Kit