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Can I read Chemical Actinometry at 147.0 Nm on EtoBox?
Chemical Actinometry at 147.0 Nm by Gerard R. Powell; Dhanwant S. Sethi is a Chemistry article available to read on EtoBox.
What is Chemical Actinometry at 147.0 Nm about?
Hexafluoroacetone (HFA) and 0 2 were photolyzed a t 147.0 nm to investigate their use in chemical actinometry. The products, CO for the former and 0 3 in the latter case, were monitored. For accurate comparison, both of these substances were irradiated by a single light source with two identical reaction cells a t 180" to each other. The light intensities Z were measured under the same integrated as well as instantaneous photon flux based on $03 and $CO (quantum yield) as 2 and 1, respectively. Optimum conditions for maximum product yield were 5.0 torr HFA pressure and an 0 2 flow rate of 200 ml/min a t 1 atm pressure for a 20-minute photolysis period. For light intensity variations between 1.09 X lOI4 and 2.10 X 1015 photons absorbedhec, the ratio ZO~IZHFA was found to be unity. Calibration with the commonly used NzO actinometer for a $ N ~ value of 1.41 showed that I N ~O I Z H F A and l ~, / l o , are unity. Both HFA and 0 2 are suitable chemical actinometers at 147.0 nm with qco and 'Po3 of 1 and 2, respectively. The light intensity determinatipn in the first case involves the measurement of only one product which is noncondensible a t 77"K, whereas wet analysis for 03, the onl
Who reads Chemical Actinometry at 147.0 Nm?
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- Author
- Gerard R. Powell; Dhanwant S. Sethi
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0538-8066)
- Published
- 1978
- Language
- EN
- Field
- Chemistry (Physical Sciences)