N- - -nitril

O-rings, especially Buna-N (Nitrile compound), should be stored away from fluorescent lighting and electric motors. These are sources of ozone. Ozone causes a general degradation of these elastomers. 

P. fluorescence N1 [370] Ronald Atlas US None. Involved < 10% N-removal from oil. Selective to N-nitriles. 

In 1937, Germany also developed Buna-N (N = nitrile structure 9.35), which offered good resistance to oil. Most of these rubbers are still in use with small modifications. 

RC N Nitrile CH,C N Acetonitrile or Ethanenitrile -ic or -oic acid to nitrile or add -nitrile to alkane name... 

Isocyanates are derivatives of isocyanic acid, HN=C=0, in which alkyl or aryl groups, as well as a host of other substrates, are direcdy linked to the NCO moiety via the nitrogen atom. Structurally, isocyanates (imides of carbonic acid) are isomeric to cyanates, ROC N (nitriles of carbonic acid), and nitrile oxides, RO Nf—>0 (derivatives of carboxylic acid). 

The von Braun Reaction with Dihydroatisine.—Indian researchers37 have reported a study of the von Braun reaction of dihydroatisine (29) and a mass spectral analysis of the resulting product, the N-nitrile (93). Reduction of atisinium chloride (94) with sodium borohydride gave dihydroatisine (29). The reaction of the latter with cyanogen bromide in anhydrous ether at room temperature for 24 hours gave (93) [m.pt 265 °C] in a yield of 86%. Acid hydrolysis of (93) with 10% HC1 afforded compound (95). 

RC=N Cl i3ch2ch2c=n Nitrile (The functional group is the carbon-nitrogen triple bond.)... 

Noguchi T, Nojiri M, Takei K-i, Odaka M, Kamiya N. Nitrile hydratase. Biochemistry 2003 42 11642-50. 

BUNA N (nitrile) Aromatic hydrocarbons, dilute acids and bases, silicones, helium hydrogen Halogen compounds, halogenated hydrocarbons (carbon tetrachloride, trichlorethylene), ketones (acetone), nitro compounds, or strong acids Typical color black. Temperature range -50 to 120°C. Easily compressed. Density 1.00. Lowest permeability rates for gases of all elastomers. 0.25... 

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