Critical ignition temperatures of chemical substances

✍ Scribed by Takashi Kotoyori

• Publisher: Elsevier Science
• Year: 1989
• Tongue: English
• Weight: 216 KB
• Volume: 2
• Category: Article
• ISSN: 0950-4230
• DOI: 10.1016/0950-4230(89)87004-4

✦ Synopsis

Critical ignition temperatures have been found for eight self-heating or thermally unstable chemical substances, using an adiabatic self-heating test. From the experiments, the self-heating behaviour of the substances has been classified into two groups. The first group has been termed 'T-C' (thermal combustion) type and the second termed 'A-C' (autocatalytic combustion) type. Five substances were classified as 'T-C' type, and the critical ignition temperatures ranged from 329 K for CY, cr'-azobisisobutyronitrile to 351 K for dinitrosopentamethylenetetramine. Ignition of the 'A-C' type substances ultimately occurred after 60 days at 314 K for nitrocellulose, 315 K for lauroyl peroxide, and 351 K for p-toluenesulphonylhydrazide. Such values agree with those of previous workers.