The complexes of bismuth(III) and nitrilotriacetic acid |
| |
Authors: | Karadakov B P Venkova D I |
| |
Institution: | Institute of Chemical Technology Sofia-56, Bulgaria. |
| |
Abstract: | The reaction between bismuth(III) and nitrilotriacetic acid (NTA or H(3)X) has been investigated by ultraviolet spectrophotometry. It has been established that bismuth(III) and NTA form two complexes with compositions bismuth(III): NTA = 1:1 and 1:2. The absorption maxima are at 243 nm (1:1) and 271 nm (1:2), the molar absorptivities being 8.00 x 10(3) and 8.20 x 10(3) l.mole(-1).cm(-1) respectively. The stability constants (at mu = 1.0) are: log beta(BiX) = 17.53 +/- 0.06 and log beta(B)(2)(3-) = 26.56 +/- 0.07. The possibility of the analytical application of BiX is briefly discussed. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |