Ionic strength dependence of formation constants: Complexation of Mo(VI) with aspartic acid
Yazarlar (4)
Farrokh Gharib Shahid Beheshti University, İran
Karim Zare
Shahid Beheshti University, İran
Afshin Taghvamanesh Islamic Azad University, Science And Research Branch, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Science And Research Branch, İran
Makale Türü Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Chemical and Engineering Data
Dergi ISSN 0021-9568 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 09-2001
Cilt / Sayı / Sayfa 46 / 5 / 1140–1144 DOI 10.1021/je000376s
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-0035445687&partnerID=MN8TOARS
Özet
The formation constants of species formed in the systems H+ + Mo(VI) + aspartic acid and H+ + aspartic acid have been determined in aqueous solution for 4 ≤ pH ≤ 9 at 25 °C and different ionic strengths ranging from (0.1 to 0.8) mol dm-3 (NaClO4), using polarimetric, spectrophotometric, and potentiometric techniques. The composition of the complex was determined by the continuous variations method. It was shown that molybdenum(VI) forms a mononuclear 1:1 complex with aspartic acid of the type MoO3L-2 at pH = 5.8. The dependence of the protonation of aspartic acid and the stability constant of the complex on ionic strength is described by a Debye-Huckel-type equation, and finally the results have been compared with data previously reported.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 26
Scopus 29
Ionic strength dependence of formation constants: Complexation of Mo(VI) with aspartic acid

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