A new type triphenylmethane complexon containing an iminodiacetic acid and a pyridinium group incorporated in an o-Cresol Red skeleton was synthesized. The new complexon was found to be useful as a metallochromic indicator for the complexometric titrations of multivalent metal ions, Ga3+, In3+, Tl3+, Fe3+, and Zr4+ ions.
[EN] CHEMICAL SENSORS MODIFIED BY THE SOL-GEL METHOD AND ITS APPLICATION TO POLYMERIC MATRIXES<br/>[FR] CAPTEURS CHIMIQUES MODIFIÉS PAR LE PROCÉDÉ SOL-GEL ET LEUR APPLICATION AUX MATRICES POLYMÈRES
申请人:BRASKEM SA
公开号:WO2010001298A1
公开(公告)日:2010-01-07
The present invention relates to chemical sensors, with hybrid characteristics, which are thermomechanically stable and able to respond to p H changes in the presence of amine, amide and oxide- reducing compounds, through color change, as well as its incorporation into polymeric matrixes and the use thereof.