Carbon, 107 illus

Systematic names for carboxylic acids are derived by counting the number of car bons m the longest continuous chain that includes the carboxyl group and replacing the e ending of the corresponding alkane by oic acid The first three acids m Table 19 1 methanoic (1 carbon) ethanoic (2 carbons) and octadecanoic acid (18 carbons) illus trate this point When substituents are present their locations are identified by number... 

The hyperbolic reladonship between the logarithm of the retention factor and the carbon load of octadecyl sOica stationary phase is illus-... 

The development of a simple fast-scan polarographic method for the determination of the A4-3-ketosteroid flurandrenolone in pharmaceutical preparations has been reported [134]. The polarographic peak due to the reduction of the carbon-fluorine bond is measured in ointments and creams to determine concentrations as low as 0.01 % w/w. Pulse polarographic procedures have been described for progesterones [135], A4-3-ketosteroids [136], hydrocortisone [137], and flucytosine [138] in pharmaceutical preparations. Recent studies have illus-... 

Removal of the elements of HX, called dehydrohalogenation, is one of the most common methods to introduce a n bond and prepare an alkene. Dehydrohalogenation is an example of P elimination, because it involves loss of elements from two adjacent atoms the a carbon bonded to the leaving group X, and the P carbon adjacent to it. Three curved arrows illus- ... 

In this connection, one may refer to polymorphism of a homologous series of n n+2 n in which n was even-numbered carbon atoms ranging from 10 to 16 (24,25). In these TAG, the most stable form is P, and no P form was observed. The crystal structure of the P form y> simply and symbolically, be illus-... 

Solid carbon dioxide is called dry ice. At room temperature, dry ice is used to create the illusion of fog on stage. 

Like the nitrates, a similar decrease in symmetry occurs in carbonates that have become covalently bonded Table IV illus-... 

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