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- W2030965940 abstract "An acidic and a basic solvent containing the same proportions of propanol and water have been used for the study of about 100 organic acids by paper chromatography. The acid and the base were solutions fo the gases sulphur dioxide or ammonia in water and therefore were readily removed after chromatography. Sulphurous acid has the advantage of being a stronger acid than those normally used, e.g. formic and acetic acid. The RM values of the organic acids in the two solvents can be arranged into clear-cut groups dependent on the number of carboxyl and other substituted groups present, in such a way that the number of carboxyl groups in an unknown acid can be confidently predicted. An indication can also be obtained of other groups such as alkyl, aryl, amino, hydroxy, bromo etc. which may be present, and the manner in which they are arranged. The results include nine homologous series whose members differ from one another only in the addition of -CH2- to the molecule." @default.
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- W2030965940 date "1960-01-01" @default.
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- W2030965940 title "Paper chromatography and structural relationships of organic acids" @default.
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- W2030965940 doi "https://doi.org/10.1016/s0021-9673(01)97020-7" @default.
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