Conclusions
A direct method was developed for the determination of small amounts of PTSA in mixtures of it with sulfuric acid, suitable for quality control under industrial conditions.
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Literature cited
I. M. Kolthoff and W. A. Stenger, Volumetric Analysis [Russian translation], Vol. 2, Moscow-Leningrad (1952).
V. A. Nazarenko, Zavod. Lab.,4, 515 (1935).
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Translated from Farmatsevticheskii Zhurnal, No. 12, pp. 40–41, December, 1967.
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Goizman, M.S., Chemerisskaya, A.A. Determination of para-toluenesulfonic acid and sulfuric acid in a mixture. Pharm Chem J 1, 705–706 (1967). https://doi.org/10.1007/BF00761595
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DOI: https://doi.org/10.1007/BF00761595