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Study of the 2700A absorption of molecular iodine
A weak absorption in iodine vapour was reported by earlier workers to not obey Beer's Law, and was attributed to the dimer I₄. The ultraviolet spectrum of iodine vapour was reinvestigated in this study on a more quantitative basis. The extinction coefficients have been found to be independent of concentration of iodine (10 ̄⁵ to 10 ̄² M), pressure of an inert gas (up to 1 atm), and temperature (25°C to 220°C, except for the usual temperature broadening). The absorption continuum (maximum 2694±3doi:10.14288/1.0059938 fatcat:qxop7izyybdpvb7dkbiwttj4te