Benzyl radicals are formed from toluene in a low pressure discharge. The discharge is operated with rectangular pulses (pulse width 5 -200 μsec, repetition rate 200 cps, amplitude 50 -700 mA). The disappearance of the radicals is measured by means of their absorption band at 3053 A. Under the conditions of the discharge the „lifetime“ of the radicals is about 10
The infra-red absorption spectrum and laser raman spectrum of crystalline potassium trichromate are reported and compared with the corresponding spectra of potassium dichromate. It is shown that the state of aggregation of acid and concentrated aqueous chromate solutions can be investigated by use of laser raman spectroscopy. Trichromate ions are found to exist in acid dichromate solutions having concentrations ≧ 3 M and acidity pH ≪ 0, and in aqueous solutions of chromium trioxide provided concenrations are ≧ 2 M.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.