Acidity principle

Sundaralingam M (1980) Nucleic acid principles and transfer RNA. In Srinivasan R (ed) Biomolecular structure, conformation, function and evolution. Pergamon Press, New York, pp 259-283... 

Berthollet s paper on nitrous acid was reviewed by Cadet and Lavoisier. Since Lavoisier had a strong agenda by this time of establishing vital air as the acid principle, it is not possible to discern Berthollet s voice. Berthollet had apparently obtained fixed alkali and dephlogisticated air by heating pure niter. Since niter was composed of nitrous acid and fixed alkali, this meant that nitrous acid was converted to dephlogisticated air. This conclusion contradicted the experiment in which Priestley had obtained much nitrous acid as well as dephlogisti-... 

Acetic Acid. This is the well-known acid principle of vinegar. It is one of the common products of fermentation, of the oxygenation of alcohol, and of the destructive... 

Picrolicbenic Acid. 6-Hydroxy-2 -methoxy-2,4 dioxo-4,6 -dlpentylspi rofben zofuran-3 2H),T -[2,5jcyclo-hexadieneJ-5-carboxylic acid picrolichenin. C H O, md wt 442.49. C 67.85%, H 6.83%, O 25.31%. Bitter acidic principle of crustose lichen, Pertusaria amara (Ach.) Nyl., Pertusariaceae. Isoln Alms, Ann. Pharm. 1, 61 (1832). 

Polystyrene has been found to have a higher affinity for attachment for Ag, AP, Crp and Cu than to Kp whereas PEG shows a higher affinity for than for AP, Crp and Cu". These preferential attachments were discussed in terms of the hard and soft acid principle. ... 

Phil. Trans., 1818, cviii, 420-8 A description of an acid principle prepared from the lithic or uric acid. 

A consideration of the attractive forces which tend to form molecules, and of the atmospheres of fire which surround the molecules of compound gases but not the ultimate parts severally , can explain the conversion of a substance by heating, not into one but into two or three different elastic fluids, e.g. acetous acid, a compound of the gravitating parts of empyreal air, phlogiston, and the acid principle of vegetables, forms fixable air and dense inflammable air. ... 

The non-metal oxide reactions with water led Antoine Laurent Lavoisier (1713-1794) to associate the acidity principle with elemental oxygen, but Sir Humphry Davy, in the beginning of the XIX century, was the first to suggest that the acidifying principle was owed to hydrogen — as in the case of hydrochloric acid. 

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