Determination of radicles in carbon compounds / by Dr. H. Meyer. Authorized translation by J. Bishop Tingle.

  • Meyer, Hans (Hans Johannes Leopold), 1871-
Date:
1903
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Licence: In copyright

Credit: Determination of radicles in carbon compounds / by Dr. H. Meyer. Authorized translation by J. Bishop Tingle. Source: Wellcome Collection.

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    DETERMINATION OF RADICLES IN CARBON COMPOUNDS. INTRODUCTION. The quantitative analysis of inorganic Compounds, as usually performed, consists almost exclusively in the determination of ions, as this generally suffices for the identification of the substance; but to attain the same end in the case of organic bodies the elementary analysis requires supplementing by other methods. The percentage composition gives no information about the relative arrangement of the atoms in the molecule, but the demand for methods of analysis which will yield such knowledge increases with our growing in- sight into the Constitution of carbon compounds. To supply this want certain “ quantitative reactions ” have been applied for the determination of special groups of atoms; they are widely, but almost exclusively, em- ployed by technologists in the analysis of such sub- stances as fats, waxes, resins, ethereal oils, caoutchouc, glue, paper, etc., and the results are known as the •‘acid number,” “ saponification number, ” “ iodine number,” “ methoxyl number,” “ acetyl number,” “ carbonyl number,” etc. The determination of such