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Modified silica gel with 5-amino-1,3,4-thiadiazole-2-thiol for heavy metal ions removal

✍ Scribed by P. Tzvetkova; P. Vassileva; R. Nickolov

Publisher
Springer
Year
2009
Tongue
English
Weight
189 KB
Volume
17
Category
Article
ISSN
1380-2224

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Study of Copper Complexes Absorbed on a
Study of Copper Complexes Absorbed on a Silica Gel Surface Chemically Modified with 5-Amino-1,3,4-thiadiazole-2-thiol
✍ Newton L. Dias Filho 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 157 KB

The isotherms of adsorption of CuX2 (X = Cl-, Br-, ClO-4) by silica gel chemically modified with 5-amino-1,3,4-thiadiazole-2-thiol were studied in acetone and ethanol solutions, at 25 degreesC. The following equilibria constants (in L mol-1) were determined: (a) CuCl2, 3.2 x 10(3) (ac), 2.5 x 10(3)

Stripping Voltammetry of Mercury(II) wit
Stripping Voltammetry of Mercury(II) with a Chemically Modified Carbon Paste Electrode Containing Silica Gel Functionalized with 2,5-Dimercapto-1,3,4-thiadiazole
✍ Newton L. Dias Filho; Devaney Ribeiro do Carmo 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 154 KB 👁 1 views

## Abstract The accumulation voltammetry of mercury(II) was investigated at a carbon paste electrode chemically modified with silica gel functionalized with 2,5‐dimercapto‐1,3,4‐thiadiazole (DTTPSG‐CPE). The repetitive cyclic voltammogram of mercury(II) solution in the potential range −0.2 to +0.8