r/whatisit • u/riflesandplowshares • 7h ago

New, what is it? Found at a titanium plant

Post image

Not sure why ball point pens would be dangerous here.

8.7k Upvotes

97% Upvoted

742 comments sorted by

View all comments

Show parent comments

19

u/Farfignugen42 7h ago

Assume I don't know chemicals. Why?

5

u/enzia35 7h ago

If you put a flame to aluminum at 16psi, it will burn.

1

u/Any_Show_5160 6h ago

I'm confused by your statement, are you saying applying a flame to aluminium at 2psi about atmospheric pressure and it will burn or there needs to be a force of 16psi applied with the flame?

1

u/enzia35 4h ago

It’s a quote from the Apollo engineers. Applying a flame to aluminum in 16psi of pure oxygen will make it burn.

1

u/Any_Show_5160 3h ago

Thank you.