Nitrogenous organic compounds

The Soda- lime Test. Certain classes of nitrogenous organic compounds (e.g., amides, etc.) evolve ammonia when heated with soda-lime. In view of the limited application of this test, however, it may well be reserved for Section 3, where it is included with other compounds reacting with soda-lime. 

Barker HA (1961) Fermentations of nitrogenous organic compounds. In The Bacteria (Eds IC Gunsalus and RY Stanier), Vol. 2, pp. 151-207. Academic Press, New York. 

Several perchlorate derivatives of non-metallic elements (including some non-nitrogenous organic compounds) are noted for explosive instability. 

ALKALOIDS. A group of basic nitrogenous organic compounds, which exhibit a powerful toxic action on the mammal system. 

Non-nitrogenous organic compounds, exclusive of organo-metallio bodies, can be conveniently considered under the two following types, viz. ... 

The nitrogenous organic compounds arrange themselves in tbe most convenient manner under the two following typ i-.—... 

Using a similar, mixed component technique, Tokuyama Soda KK claim [142] to have increased the yield of perfluorooctane to greater than 45 % by the simultaneous fluorination of -octane and a nitrogenous organic compound. 

M. Berthelot. found that many nitrogenous organic compounds furnish ammonia when heated with hydriodic acid and J. Kjeldahl showed that the nitrogen of many nitrogenous compounds is all converted into ammonia or ammonium sulphate when heated with cone, sulphuric acid—in the case of nitro-eompounds and cyanides the reaction is not always quantitative. The reaction proceeds more satisfactorily in the presence of mercury or mercuric oxide, copper, potassium hydrosulphate, sugar, phenol, benzoic acid, and analogous compounds. This reaction has been discussed by C. Arnold, A. Atterberg, C. Budde and C. V. Sehon,... 

Fig. 10. UV-absorption spectrum of a filamentous organic microstructure from Transvaal stromatolite (ca. 2200 MY). Beam diameter of the instrument was below 1 pm. Absorption shoulders at 280 nm and 26S nm were assigned to nitrogenous organic compounds containing double bonds (L. Nagy, 1978) 35)...

Kjeldahl nitrogen is the sum of nitrogenous organic compounds, free ammonia, and ammonium. In the presence of H2S04, K2S04, and selenium catalyzer organic nitrogen is converted to ammonium. Free ammonia is also converted to ammonium. After the addition of a base, the ammonia is distilled from an alkaline medium and absorbed in boric acid. The ammonia may be determined colorimetrically at 655 nm or by titration with a standard mineral acid... 

Enzymes are complex nitrogeneous organic compounds. They are produced in die living cells of plants and animals. On dissolving in water they form the colloidal solution, hence they behave as very active catalysts in certain biochemical reactions and are known as biochemical catalysts and the phenomenon itself is known as biochemical catalysis. 

Schilf, W., and Stefaniak, L. (2000). Application of 14N and 1SN NMR for determination of protonation site and hydrogen bond strength in nitrogen organic compounds. In Atta-ur-Rahman Ed., New Adv. Anal. Chem., Amsterdam Harwood Academic Publishers. 

Nitrogen is another element often found in the functional groups of organic compounds. The most common nitrogenous organic compounds are amines, amides, and nitriles. 

High-nitrogen organic compounds (C, H, 0, N) are combined with inorganic oxidisers ... 

We have undertaken a large research effort on the study of nitrogeneous organic compounds in natural waters and water treatment plants. Among these substances, the amino acids demonstrate a particularly interesting behaviour. 

Sulfur aids plants in their utilization of nutrients and in the formation of vitamins within the system of the plant, it is found in the nitrogenous organic compounds that are essential components of proteins. 

Dumas method. Condensation of nitrogenous organic compounds with copper oxide in a stream of carbon dioxide, collection of the elementary nitrogen over aqueous potassium hydroxide, and volumetric estimation in an azotometer. Any nitrogen oxides formed are reduced by passage over a red-hot copper spiral. 

R165 W. Schilf and L. Stefaniak, Application of N and N NMR for Determination of Protonation Site and Hydrogen Bond Strength in Nitrogen Organic Compounds , p. Pl/659... 

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