Nomenclature and Jargon

Usage Glassification. It is advantageous to consider the classification of dyes by use or method of appHcation before considering chemical stmctures in detail because of dye nomenclature and jargon that arises from this system. 

Although the IUPAC nomenclature is recommended in the majority of journals, it can be seen clearly that the use of jargon in respect to crown ethers and cryptands enjoys a great popularity. Not surprisingly, since their exact and complicated IUPAC names are difficult to mention frequently in the text. Common abbreviations can be found almost in all review articles 2), however, for the convenience sake, we draw attention to some of them to which is referred here. Chart 1 depicts simple examples of N,N -dimethyl diazacoronands, cryptands and more elaborated cryptands incorporating carbohydrate units. The abbreviations below each formula are easy to follow. 

This brief review has emphasized the exceptions more than the regularities of the conventional polymer nomenclature. The reader will find that this jargon is not as formidable as it may appear to be on first encounter. A very little practice is all that is usually needed to recognize repeating units, parent monomer structures, and the common names. 

Section I deals with the chemistry of explosives. It starts with definitions and nomenclature of organic chemicals, based on molecular structure, which is included to bring nonchemists up to speed on being able recognize and describe pure explosive compounds and mixtures and not to be intimidated by chemists jargon. It then describes the many forms in which these explosive chemicals are used. Using molecular structure as the common thread, the text then goes into the estimation of the stoichiometry of oxidation reactions, the prediction of explosive detonation velocity and pressure properties, and the quantitative analysis of thermal stability. 

The incorporation of a sampler into an instrument turns the latter into an analyser. However, the scientific jargon supports the original nomenclature with very few exceptions. Thus, the term analyser is used to describe (1) complex automatic systems where detection is only another aspect among others that are equally important and (2) straightforward specific automatic systems with emphasis on the particular analyte determined rather than on the instrumental technique upon which their operation is based. 

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