FORMATION OF ANILINE MONOSULPHONIC ACID

المؤلفون

  • Khalifa A. Alfallous Department of Chemistry, Faculty of Science ,Alasmarya Islamic University, Zliten, Libya مؤلف
  • Ismail A. Heblow Department of Chemistry, Faculty of Science ,Alasmarya Islamic University, Zliten, Libya مؤلف

DOI:

https://doi.org/10.58916/jhas.vi.413

الكلمات المفتاحية:

aniline, monosulfate, spectrophotometric, activation energies

الملخص

The study of aniline sulfonation is important for the subsequent synthesis of polyaniline with substituents in the side chain.   Sulfonation of purified aniline monosulfate with monohydrate and oleums was used. Quantitative analysis of aminosulfonic acid isomers was carried out using spectrophotometric and bromometric methods.   An increase in the SO3 concentration in the sulfonating oleum leads to an increase in the amount of methanilic acid compared to the ortho- and para-isomers.  The process of increasing the concentration of the meta-isomer is a linear function of the acidity of the oleum. The addition of tetrabisulfate boric acid to the oleum also helps to increase the yield of methanilic acid. A comparison of activation energies showed that tetrabisulfate boric acid had no effect on the sulfonation mechanism and the transition state. The work presents new data on the mechanisms of aniline sulfonation.

التنزيلات

تنزيل البيانات ليس متاحًا بعد.

المراجع

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Gillespie, R. J., Peel, T. E., & Robinson, E. A. (1971). Hammett acidity function for some super acid systems. I. Systems H2SO4-SO3, H2SO4-HSO3F, H2SO4-HSO3Cl, and H2SO4-HB (HSO4) 4. Journal of the American Chemical Society, 93 (20), 5083-5087

Maarsen, P. K., & Cerfontain, H. (1977). Aromatic sulphonation. Part 59. Sulphonation of aniline in concentrated aqueous and fuming sulfuric acid. Journal of the Chemical Society, Perkin Transactions 2, (8), 1008-1010

Elliot R. Alexander. Mechanism of the Sulfonation of Aromatic Amines. I. Sulfonation with Fuming Sulfuric Acid. Journal of the American Chemical Society 1946, 68, 6, 969-973

التنزيلات

منشور

2024-09-04

كيفية الاقتباس

Khalifa A. Alfallous, & Ismail A. Heblow. (2024). FORMATION OF ANILINE MONOSULPHONIC ACID. مجلة جامعة بني وليد للعلوم الإنسانية والتطبيقية, 502-509. https://doi.org/10.58916/jhas.vi.413

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