Abstract
1,4-Diphenylpiperazine can be titrated in acetic anhydride with perchloric acid. The titration curve resulting from plotting millivolts vs. volume of titrant gives two equal and well-defined inflection points. Diphenylpiperazine is a by-product in the synthesis of diphenylethylenediamine and may be determined in the presence of the same by acetylation and titration in acetic acid with perchloric acid. It may be identified by separation and titration, obtaining the very characteristic curve in acetic anhydride. Interferences from other tertiary amines and aniline are dealt with in these determinations of diphenylpiperazine.
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References
Fiegl, F. “Spot Tests in”Organic Analysis,“ (Elsevier Publishing Co.) 5th ed., p. 215.
Ciaccio, L. L., Missan, S. R., McMullen, W. H., and Grenfall, T. C. Anal. Chem., Vol. 29, p. 1671, 1957.
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© 1961 Springer Science+Business Media New York
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Hurst, L.S. (1961). Titrations of 1,4-Diphenylpiperazine. In: Jackson, D.S. (eds) Titrimetric Methods. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2702-6_11
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DOI: https://doi.org/10.1007/978-1-4899-2702-6_11
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