PHYSICO-CHEMICAL PROPERTIES OF N-BENZOYL-N'-(2-NAPHTHYLSULFONIL) HYDRAZINE

Authors

  • Юлия Борисовна Ельчищева «Пермский государственный национальный исследовательский университет»
  • Olesya M. Sozinova Perm State University
  • Petr P. Pavlov Perm State University

DOI:

https://doi.org/10.17072/2223-1838-2022-1-25-35

Keywords:

acylsulfonylhydrazines, physico-chemical properties, organic ligands, solubility, ultraviolet spectrometry

Abstract

In the current study, the physicochemical properties of N-benzoyl-N'-(2-naphthylsulfonil)hydrazine (BNSH) were measured by spectrophotometric and gravimetric methods. The solubility of this reagent was determined in ethanol, KOH (0.1 mol/L), toluene, chloroform, and hexane solutions. It was shown that BNSH can be used in the processes of flotation and extraction. Results of spectrophotometry confirmed that BNSH is a weak diacid due to obtained values of the acid dissociation constants (pKa1= 7,78 ± 0,42; pKa2 = 13,53 ± 0,44). Also, it was established that BNSH solutions are sufficiently stable over time in alkaline media: the degree of hydrolysis within two hours is 8,10%. The results of stalagmometric method showed that BNSH is a surfactant.

Author Biography

Юлия Борисовна Ельчищева, «Пермский государственный национальный исследовательский университет»

ПГНИУ, кафедра аналитической химии и экспертизы. доцент кафедры аналитической химии и экспертизы.

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Published

2022-03-22

How to Cite

Ельчищева, Ю. Б., Sozinova О. М., & Pavlov П. Т. (2022). PHYSICO-CHEMICAL PROPERTIES OF N-BENZOYL-N’-(2-NAPHTHYLSULFONIL) HYDRAZINE. Bulletin of Perm University. CHEMISTRY, 12(1), 25–35. https://doi.org/10.17072/2223-1838-2022-1-25-35

Issue

Vol. 12 No. 1 (2022)

Section

Physical chemistry and electrochemistry

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