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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectrophotometric study of stability constants of cimetidine–Ni(II) complex at different temperatures Spectrophotometric study of stability constants of cimetidine–Ni(II) complex at different temperatures](/preview/png/1251108.png)
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
Journal: Arabian Journal of Chemistry - Volume 5, Issue 3, July 2012, Pages 309–314
نویسندگان
Syed Ahmad Tirmizi, Feroza Hamid Wattoo, Muhammad Hamid Sarwar Wattoo, Saadia Sarwar, Allah Nawaz Memon, Allah Bux Ghangro,