Determination of fumigants. XXIII.—The recovery of hydrogen cyanide from fumigated insects

✍ Scribed by H. J. Bhambhani

• Publisher: John Wiley and Sons
• Year: 1956
• Tongue: English
• Weight: 453 KB
• Volume: 7
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740070411

✦ Synopsis

Abstract

The recovery of hydrogen cyanide from fumigated insects (Calandra granaria L. and C. oryzae L.) depends on the pH of the solution used to hydrolyse cyanohydrins formed in the insects. A considerable increase in the amount of recoverable fumigant is found when the insects are ground before distillation. When care is taken to recover all the fumigant possible, the discrepancy between sorption and recovery becomes scarcely measurable for short periods of fumigation. Discrepancies, attributed to metabolism by other workers, seem likely to be partly associated with incomplete recovery.