Some aspects of chemistry in strongly acidic solvent media

Some Aspects of Chemistry in Strongly Acidic Solvent Media

An account is given of some recent developments in the chemistry of solutions in highly associated strong protonic acid solvents, including sulphuric acid and oleums, fluorosuiphuric acid and hydrogen fluoride. Topics discussed include solvent—solute interactions, super-acid systems, Hammett acidity functions and polyatomic cations of the elements of Groups VI and VII.

Some aspects of the chemistry of penicillin.

Some recent advances in the chemistry of penicillin are presented. The group of antibiotics known as the penicillins have a unique position in chemistry. Not only were they the first type of antibiotic to be widely accepted in medical practice, but their chemistry proved to be of unusual interest and complexity. Modem fermentation plants have reduced the cost of the penicillins such that one sh...

Aspects of Solvent Chemistry for Calcium Hydroxide Medicaments

Calcium hydroxide pastes have been used in endodontics since 1947. Most current calcium hydroxide endodontic pastes use water as the vehicle, which limits the dissolution of calcium hydroxide that can be achieved and, thereby, the maximum pH that can be achieved within the root canal system. Using polyethylene glycol as a solvent, rather than water, can achieve an increase in hydroxyl ions rele...

Some Aspects of Calcium Phosphate Chemistry in Sugarcane Clarification

Interfacial Chemistry in Solvent