Liu, Juncheng published the artcileInvestigation on the solubilization of organic dyes and micro-polarity in AOT water-in-CO2 microemulsions with fluorinated co-surfactant by using UV-Vis spectroscopy, SDS of cas: 518-67-2, the publication is Journal of Supercritical Fluids (2004), 32(1-3), 97-103, database is CAplus.
It was found that the dyes thymol blue, dimidium bromide, and methyl orange, which are not soluble in pure supercritical CO2, could be conveniently solubilized in AOT water-in-CO2 reverse microemulsions with 2,2,3,3,4,4,5,5-octafluoro-1-pentanol as co-surfactant. The solubilities of the dyes in the microemulsions were measured successfully by using a UV-visible spectroscopy method newly established in our laboratory; besides that, for a given temperature, a critical micelle pressure at which formation of AOT water-in-CO2 reverse micelles starts, was determined in term of the effect of pressure on the absorption intensity of the dyes in the microemulsions. Furthermore, the micro-polarity environment of the AOT water-in-CO2 reverse microemulsions was investigated systematically according to the shift of the solvatochromic probes methyl orange and dimidium bromide with varying water content by using UV-visible spectroscopy.
Journal of Supercritical Fluids published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, SDS of cas: 518-67-2.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary