BEHAVIOURE STUDY OF THE ASSOCIATION BETWEEN ACID-BASE INDICATORS IN ACIDIC MEDIUM BY USING SPECTROSCOPY TECHNIQUE

Authors

  • Sokaina Saad Hemdan Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya
  • Asma Mansur Al Jebaly Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya
  • Fatma Khairallah Ali Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

DOI:

https://doi.org/10.26389/AJSRP.S200118

Keywords:

Spectrum, Electronic Absorption, Acid-Base Indicators, Lack of Isosbestic Point, Higher Aggregates, Buffer Solution

Abstract

The association behavior between Acid-Base indicators in buffered aqueous solution (pH = 4) has been studied by UV–Vis spectroscopy technique at room temperature. The spectroscopic results show that association are formed evidenced by highly red shift to  lmax = 485nm and large hypo-chromic shift in absorbance signal upon addition of ago dye. The electronic absorption spectra represented by broadening bands and lack of isosbestic point that indicate of formation of higher order dye aggregates from the type J-aggregate as results as change of the pH of the medium were discussed according to exciton kasha theory.

Author Biographies

  • Sokaina Saad Hemdan, Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

    Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

  • Asma Mansur Al Jebaly, Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

    Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

  • Fatma Khairallah Ali, Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

    Chemistry Department | Factually of Science and Art El Marj | Benghazi University | El Marj | Libya

References

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Published

2018-03-30

Issue

Vol. 2 No. 1 (2018)

Section

Content

License

Copyright (c) 2018 المجلة العربية للعلوم ونشر الأبحاث

How to Cite

Hemdan, S. S., Al Jebaly, A. M., & Ali, F. K. (2018). BEHAVIOURE STUDY OF THE ASSOCIATION BETWEEN ACID-BASE INDICATORS IN ACIDIC MEDIUM BY USING SPECTROSCOPY TECHNIQUE. Journal of Natural Sciences, Life and Applied Sciences, 2(1), 69-64. https://doi.org/10.26389/AJSRP.S200118