Studies on the metal-complex of acetyl salicylic acid (aspirin).

The present communication deals with the isolation of acetyl salicylic acid (aspirin complexes with Bi+3 Zn+2 and UO2+2. The characterization of 1:2 complexes have been carried out with the help of conductometric, pH met;ric, elemental analysis and IR spectral studies. Spectrophotometric studies in case of UO2+2 (the only colored complex) in range of 4.2 to 5.5 pH show absorption at 490 nm and complex obey Beers Law at the concentration range of 0.01 M to 0.1 M.