Nitrogen chemical inertness

It was not their reactivity but their chemical inertness that was the true surprise when diazirines were discovered in 1960. Thus they are in marked contrast to the known linear diazo compounds which are characterized by the multiplicity of their reactions. For example, cycloadditions were never observed with the diazirines. Especially surprising is the inertness of diazirines towards electrophiles. Strong oxidants used in their synthesis like dichromate, bromine, chlorine or hypochlorite are without action on diazirines. Diazirine formation may even proceed by oxidative dealkylation of a diaziridine nitrogen in (186) without destruction of the diazirine ring (75ZOR2221). The diazirine ring is inert towards ozone simple diazirines are decomposed only by more than 80% sulfuric acid (B-67MI50800). 

Narcosis Narcosis is a state of deep stupor or unconsciousness, produced by a chemical substance, such as a drug or anesthesia. Inhalation of certain chemicals can lead to narcosis. For example, diethyl ether and chloroform, two common organic solvents, were among the first examples of anesthesia known. Many other chemicals that you would not suspect can also cause narcosis. For example, even though nitrogen gas comprises 80% of the air we breathe and is considered chemically inert (unreactive) it can cause narcosis under certain conditions. Always work with adequate inhalation and avoid inhaling chemical fumes, mists, dusts etc. whenever possible. Use fume hoods and respirators as necessary. 

Asphyxiant Simple asphyxiants are inert gases which deplete the oxygen supply in the breathing air to below the critical value of J8% by volume, such as gaseous fuels or nitrogen. Chemical asphyxiants, such as carbon monoxide and hydrogen cyanide, have a direct biological effect. 

Figure 22.11. Cellulose is a structural and rather chemically inert component of terrestrial plants. Alginic acid is synthesized by marine algae and has medicinal properties. Some polysaccharides contain nitrogen in the form of amino sugars. The primary example of this is chitin, which composes the exoskeletons of Crustacea. An amino sugar contains an amine in place of a hydroxyl group. In other polysaccharides, sugars combine with lipids and proteins. These form glycoUpids and glycoproteins, respectively.

Other suitable binding sites, which in addition are chemically inert, are ether oxygens and tertiary amine nitrogens. Since most synthetic... 

At ordinary temperatures, nitrogen is very stable and chemically inert to most substances. However, at elevated temperatures and pressures or in the presence of an electric spark or ionization radiation, nitrogen can combine with many substances. 

The chemical reaction mechanism for this simulation consisted of 27 reactions involving the 9 chemical species. In this simulation the nitrogen (N2) from the air does not participate chemically—it is treated as being a chemically inert diluent. 

LI Reactions of Nitrogen Oxides. Molecular nitrogen, N2, is the major component of air, and it is a very stable and chemically inert species. However, it can form various oxides by reaction with oxygen at high temperatures, such reactions being important in combustion processes. In the presence of atomic oxygen O an overall destruction of ozone takes place. 

Carrier gas A chemically inert gas, e.g. nitrogen or helium, used to transport vapour through the column of a GLC/GC (gas-liquid chromatograph). Called the moving or mobile phase of the system. 

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