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The original was posted on /r/todayilearned by /u/zahrul3 on 2024-04-09 23:08:35.

Original Title: TIL fine particles of dust can explode and rapidly combust, even innocuous objects like flour or corn starch, due to the very large surface area of dust relative to its mass. One incident at a “color party” throwing colored corn starch resulted in 15 dead and 498 suffering from burns.