Chemistry word origins

Hydrocarbons are divided into two mam classes aliphatic and aromatic This classifi cation dates from the nineteenth century when organic chemistry was devoted almost entirely to the study of materials from natural sources and terms were coined that reflected a substance s origin Two sources were fats and oils and the word aliphatic was derived from the Greek word aleiphar meaning ( fat ) Aromatic hydrocarbons irre spective of their own odor were typically obtained by chemical treatment of pleasant smelling plant extracts... 

Hannaway, Owen. The chemists and the word the didactic origins of chemistry. Baltimore, London Johns Hopkins Univ P, 1975. xiii, 165 p. ISBN 0-8018-1666-1 Study of Paracelsian chemical philosophy through study of Croll and attacks by Libavius... 

Mahdihassan, S. Another probable origin of the word Chemistry from the Chinese. Current Sci 15, no. 8 (Aug 1946) 234-235. 

Mahdihassan, S. The Chinese origin of three cognate words chemistry, elixir and genii. J Univ Bombay 20, no. 2 (Sep 1951) 107-131. 

In the older papers the inaccurate old word carbonium ion, which originated from organic chemistry, has not been replaced by the semantically correct term carbenium ion. The appearance of this term marks the time when Olah s discovery of quinquevalent carbon in super-acid solution, the true carbonium ion, made the change of nomenclature essential and urgent. 

From a sampling of nineteenth-century statements about the aims of chemistry as a scientific discipline, Robert Friedel found the key words to be "composition," "properties," and "change." In Robert Friedel, "Defining Chemistry Origins of the Heroic Chemist," in Seymour Mauskopf, ed., Chemical Sciences in the Modern World. 

In other words, if an automated method can be considered equivalent in suitability in determining compliance, and if a compendial method does not require validation, then does it follow that an automated method using the same basic chemistry does not require validation of the original chemistry This puts automation closer to the same category... 

The word electrokinetic implies the joint effects of motion and electrical phenomena. We are interested in the electrokinetic phenomena that originate the motion of a liqnid within a capillary tube and the migration of charged species within the liquid that surrounds them. In the first case, the electrokinetic phenomenon is called electroosmosis whereas the motion of charged species within the solution where they are dissolved is called electrophoresis. This section provides a brief illns-tration of the basic principles of these electrokinetic phenomena, based on text books on physical chemistry [7-9] and specialized articles and books [10-12] to which a reader interested to stndy in deep the mentioned theoretical aspects should refer to. 

Title Page of William Henry s Epitome of Chemistry. In the original, Benjamin Silli-man s autograph can be seen just above the words Professor of Chemistry. ... 

Owen Hannaway, The Chemists and the Word The Didactic Origins of Chemistry (Baltimore Johns Hopkins University Press, 1975), xi. 

ALIPHATIC COMPOUND. An organic compound that can be regarded as a derivative of methane. CH4. Most aliphatic compounds are open carbon chains, straight or branched, saturated or unsaturated. Originally, the term was used to denote the higher (fatty) adds of the C H Oj series. The word is derived from the Greek term for oil, See also Compound (Chemical) and Organic Chemistry. 

---