QUANTUM YIELD FOR PRODUCTION OF CH3NC IN THE PHOTOLYSIS OF CH3NCS

Authors
ALVAREZ RA MOORE CB
Citation
Ra. Alvarez et Cb. Moore, QUANTUM YIELD FOR PRODUCTION OF CH3NC IN THE PHOTOLYSIS OF CH3NCS, Science, 263(5144), 1994, pp. 205-207
Citations number
32
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Science → ACNP
ISSN journal
00368075
Volume
263
Issue
5144
Year of publication
1994
Pages
205 - 207
Database
ISI
SICI code
0036-8075(1994)263:5144<205:QYFPOC>2.0.ZU;2-C
Abstract
The ultraviolet spectrum of methyl isothiocyanate (CH3NCS) and the qua ntum yield for its dissociation into methyl isocyanide (CH3NC) and ato mic sulfur at 308 nanometers, PHI = 0.98 +/- 0.24, were measured. Meth yl isothiocyanate is widely used as an agricultural fumigant and readi ly enters the atmosphere during and after application. The results ind icate that photodissociation by sunlight is an effective pathway for i ts removal from the atmosphere.