RATE OF PHOTOCHLORINATION OF LIQUID n-HEPTANE

Abstract

The rates of photochlorination of liquid solutions of Cl₂ and n-heptane were measured at 25^°C in a tubular-flow reactor. By using educed light intensities and short illuminated reactor lengths it was possible to obtain low conversions of chlorine (approach differential-reactor operation) for this fast reaction. The rate of morochloride production was first order in chlorine concentration and first order in light intensity. An overall quantum yield of 0.8 × 108 g mole/Einstein was obtained At the low chlorine concentrations (> 1.5 mole 7percnt;) employed no dichlorides were found in the product. The monochlorides contained a little more of the primary isomer than has been observed in other photochemical studies.