Even flour is combustible...and silo explosions can and do happen. Powder + Fire...not good. Powder + Even Static can also be not good.

I've often wondered about respiratory issues and being blasted with powder. Why did anyone think this was a good idea?

I question just what they tested. Color Me Rad, the company that does the annual color run at KI in May, describes their color powder as "non-toxic, non-rash-inducing colored corn starch". I know there are various imported color powders available for sale online (such as on Amazon), and I've always wondered just what is in those (a prime reason I've never purchased some just for fun at home, as I've wanted to for a while). But I've been under the impression that the major U.S. color run organizers (Color Me Rad, The Color Run, etc.) make their own color powder with safety in mind.

 

So did they buy some random imported stuff online, or did they obtain a sample from one of the major domestic organizers?

 

"non-toxic" and "non-rash-inducing" isn't "non-flammable". Cornstarch is flammable, as demonstrated in this video (which also provides a good explanation of how dust explosions can happen):

 

 

As always, please do not try this at home.

Death toll now at 15.

D-Con, anyone?

http://www.fox4now.com/news/4-in-your-corner/investigation-events-with-bright-colored-powders-have-a-dark-side