Charge-transfer complexometric study of ferric ion with 4-chloro-2,6-bis(hydroxymethyl)phenol in a methanol-water system using spectrophotometric and potentiometric methods

被引：4

作者：

Abbaspour, A ^{[1
]}

Kamyabi, MA ^{[1
]}

Khalafi-Nezhad, A ^{[1
]}

Rad, MNS ^{[1
]}

机构：

[1] Shiraz Univ, Dept Chem, Shiraz 71454, Iran

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2004年 / 49卷 / 04期

关键词：

D O I：

10.1021/je034219f

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Complex formation between ferric ions and 4-chloro-2,6-bis(hydroxymethyl)phenol in 0.3 mole fraction of methanol and 0.10 M tetraethylammoniumbromide as inert ionic medium has been studied at 25.0 degreesC using spctrophotometric and potentiometric methods. This charge-transfer complex has a strong absorbance in 580 run. Ferro ions do not have any significant interaction with this ligand. In both spectrophotometric and potentiometric methods, it was found that only the MLH2 and MLH3 species are formed in the pH range 2.0 to 11.5. The M:L ratio of the complex is also obtained by continuous variation and mole ratio methods, which is equal to 1:1 for this complex.

引用

页码：907 / 911

页数：5

共 21 条

[1] Acidity constants and thermodynamic parameters of some phenol derivatives in methanol plus water systems using potentiometry and spectrophotometry methods [J].