Explanatory notes
… GENERAL This sub-Chapter covers the carboxylic acids which contain the characteristic function (–COOH), called the … 3 ). In practice, however, these do not exist in the free state, but they do give rise to stable esters (ortho-esters, … has an irritating odour and is caustic. Used in dyeing, in tanning, in the coagulation of latex, in medicine as an …