کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1251108 1496052 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectrophotometric study of stability constants of cimetidine–Ni(II) complex at different temperatures
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Spectrophotometric study of stability constants of cimetidine–Ni(II) complex at different temperatures
چکیده انگلیسی

Cimetidine, a histamine H2-receptor, has a structure which enables it to act as a chelating agent. The formation of nickel(II) complex with cimetidine has been studied spectrophotometrically at an absorption maximum of 622 nm at different temperatures. The data show that nickel(II) and cimetidine combine in the molar ratio of 1:2. The stability constants of the complex were calculated to be 1.40–2.4 × 108 by continuous variation method and 1.24–2.4 × 108 by mole ratio method at 25 and 40 °C, respectively. The immediately formed complex shows stability with respect to time and temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 5, Issue 3, July 2012, Pages 309–314
نویسندگان
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