Lesson Learned from an Explosion during Chemical Synthesis:Discussion and Preventative Strategies
2020
An
explosion accident occurred when synthesizing Zn(II)-2,9,16,23-tetracarboxyphthalocyanine
from trimellitic anhydride, urea, and zinc acetate. In this work,
we discuss the direct causes of this explosion by investigating the
thermal stability of the reaction with differential scanning calorimetry.
Furthermore, four factors leading to explosions in closed systems
have been summarized, including vessel damage, system volume reduction,
increasing temperature, and gas generation. Finally, we propose technical
and managerial measures for preventing explosions in a closed system,
aiming to help scientific researchers prevent potential explosion
accidents in academic laboratories.
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