The Measurement and Prediction of Combustible Properties of Dimethylacetamide (DMAc)

The usage of the correct combustion characteristic of the treated substance for the safety of the process is critical. For the safe handling of dimethylacetamide (DMAc) being used in various ways in the chemical industry, the flash point and the autoignition temperature (AIT) of DMAc was experimented. And, the lower explosion limit of DMAc was calculated by using the lower flash point obtained in the experiment. The flash points of DMAc by using the Setaflash and Pensky-Martens closed-cup testers measured 61 o C and 65 o C, respectively. The flash points of DMAc by using the Tag and Cleveland automatic open cup testers are measured 68 o C and 71 o C. The AIT of DMAc by ASTM 659E tester was measured as 347 o C. The lower explosion limit by the measured flash point 61 o C was calculated as 1.52 vol%. It was possible to predict lower explosion limit by using the experimental flash point or flash point in the literature.