Hydrogen-containing carbons

Compounds are burnt in the flame producing ions and thus an increase in current between the jet and the collector. Detects carbon/hydrogen-containing compounds. Insensitive to carbon atoms attached to oxygen, nitrogen or chlorine. In combination with capillary GC it may detect as low as 100 pg-10 ng. Wide range of linear response ca 10 ... 

R. L. Bond In studying high temperature systems the problems associated with minerals in coal should also be investigated, and 1 would make a plea that as much work should be done on the minerals at high temperatures as on the carbon/hydrogen-containing particles. 

Polyamide synthesis has also been reported from di-isocyanates and active carbon-hydrogen containing compounds, from bisketenimines and dicarboxylic acids. ... 

Calculations for CHON Species. Journal of the American Chemical Society 97 1302-1306. i iiigliam R C, M J S Dewar and D H Lo 1975d. Ground States of Molecules. XXVIII. MINDO/3. -alculahons for Compounds Containing Carbon, Hydrogen, Fluorine and Chlorine. Journal of the -American Chemical Society 97 1307-1310. 

For compounds containing carbon, hydrogen, oxygen, nitrogen halogens and sulphur. If the compound to be analysed contains sulphur in addition to the elements considered above, then oxides of sulphur will be formed, and a new... 

The catalyst is also employed in the form of the finely-divided metal deposited upon activated carbon (usually containing 5 or 10 per cent. Pd) two methods of preparation are described, in one reduction is effected with alkaline formaldehyde solution and in the other with hydrogen ... 

Carbon-hydrogen stretching vibrations with frequencies above 3000 cm are also found m arenes such as tert butylbenzene as shown m Figure 13 33 This spectrum also contains two intense bands at 760 and 700 cm which are characteristic of monosub stituted benzene rings Other substitution patterns some of which are listed m Table 13 4 give different combinations of peaks... 

These equations tell us that the reverse process proton transfer from acids to bicarbon ate to form carbon dioxide will be favorable when of the acid exceeds 4 3 X 10 (pK, < 6 4) Among compounds containing carbon hydrogen and oxygen only car boxylic acids are acidic enough to meet this requirement They dissolve m aqueous sodium bicarbonate with the evolution of carbon dioxide This behavior is the basis of a qualitative test for carboxylic acids... 

Animal metaboHsm is based on the reactions of oxygen and organic compounds containing carbon, hydrogen, oxygen, and nitrogen and other heteroatoms. Enzymes catalyze these biochemical oxidations, which are accompHshed at about 30—40°C and frequendy proceed stepwise to produce... 

The hydrogen contained in coke bums at a higher rate than carbon. Hydrogen-burning rates are four to five times greater than carbon-burning rates. 

The regenerator has two main functions It restores catalyst activity and supplies heat to crack the feed. The spent catalyst entering the regenerator contains between 0.8-2.5 wt% coke, depending on the quality of the feedstocks. Components of coke are carbon, hydrogen, and trace amounts of sulfur and nitrogen, which burn according to the reactions shown in Table 4-3. 

Hydrogen-Containing Carbons from Pyrolyzcd Organic Precursors... 

Fig. 23. When lithium inserts in hydrogen-containing carbon, some lithium atoms bind on the hydrogen-terminated edges of hexagonal carbon fragments. This causes a change from sp to sp bonding [37].

Hydrogen-Containing Carbons from Pyrolyzed Organic Precursors 358... 

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