Spontaneous combustion of silicon powder
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Has anyone here ever experienced spontaneous combustion of silicon powder? It seems difficult to handle and quite dangerous; it’s said to be because of the large specific surface area, which generates a lot of heat. What exactly is the cause, and how can it be prevented and dealt with? 《》
Silicon powder does not ignite on its own; the main issue is that the chlorosilane adhering to it has not been completely removed.
Reply to 1# gagachaozi: How could pure silicon powder catch fire on its own?
It’s not that it caught fire, but it was extremely hot; when you moved it aside, the inside was all red；
Self-ignition of silicon powder?? No way, the natural factors behind this aren’t very clear!
What process do you use? If the Siemens method is employed, it should contain a small amount of DCS; whereas the silane method should involve the use of silane
The poster, please make it clear: is your product trichlorosilane? Also, where is the ignition point? Is it from the silicon powder warehouse or from the recovery of silicon powder after the reaction process?
It can actually burn too, just like explosions can occur in flour mills!
Silicon powder should oxidize rapidly, resulting in a rapid darkening of its surface shine.
Reply to 10# feibiao101: This happens when the temperature is too high!