HIGHLY Flammable Oxygen!!!

[actaeon277]

Well, if you replace the fuel atmosphere, with a fuel lance, you'd have a "thermal lance", or an "oxygen lance".

The fuel is the lance itself, and oxygen is blown through it.
We use it in the mill to cut, well just about anything. Including a hole in a workers leg (accidentally). Ignited my pants on fire once, and I wasn't even cutting with it.


https://www.youtube.com/watch?v=EV4r7OKkXmU
[video=youtube;EV4r7OKkXmU]https://www.youtube.com/watch?v=EV4r7OKkXmU[/video]

 

[Ziggidy]

Bottom line here is this: 1)Oxygen supports combustion, 2) is NOT flammable, 3) will not explode

 

[Old Dog]

So... I can breath without going KABOOM! or catching on fire? Great news!

 

[Ziggidy]

So... I can breath without going KABOOM! or catching on fire? Great news!

Spontaneous Human Combustion!

https://www.livescience.com/42080-spontaneous-human-combustion.html
https://www.livescience.com/40086-unexplained-files-can-humans-spontaneously-combust.html

 

[scott delaney]

seems like I was told in welding class not to put oil of ny kind on oxygen threads......or boom!

 

[actaeon277]

seems like I was told in welding class not to put oil of ny kind on oxygen threads......or boom!

Very true.
Seen some of our oxygen lances go KABOOM.

 

[Ziggidy]

seems like I was told in welding class not to put oil of ny kind on oxygen threads......or boom!

Correct, oil is a fuel. Oxygen will help it burn IF ignited. You can put any kind of fuel with O2 but be certain you do not anything that could ignite it. That's the problem.

 

[Mr Evilwrench]

"Appear" to burn is more correct academically, but it's essentially a flame turned inside out, which is still a flame.

 

[Hkindiana]

"Appear" to burn is more correct academically, but it's essentially a flame turned inside out, which is still a flame.

Sure, it IS a flame, but the oxygen itself is NOT BURNING. Oxygen does not, and CANNOT burn, which is the whole point of this thread.

 

[Mr Evilwrench]

What you need is an oxidizing chemical mixed, sometimes in particular proportion, with a reducing chemical, and if necessary a separate source of ignition. I'll admit, it's hard to think of anything being more oxidizing than... oxygen There are some pyrophorics that ignite spontaneously on contact with air. Heh heh FIRE! FIRE! Heh heh, that's cool.

 

[lovemywoods]

I love some INGO geekiness first thing in the morning! Thanks guys!

 

[Ziggidy]

Light a match in an O2 free container, nothing happens - no oxygen - no burn (it may spark due to the chemical in the match head)

Light a match in 100% O2, and the match (fuel) will burn very hot. It is not the O2 that is burning but making the match (fuel) burn very hot.

NEVER is the O2 burning. NEVER is the O2 exploding. It is always the fuel that burns more intensely when in an O2 enriched atmosphere.

O2 is used in welding, not because it burns, but because it intensifies the fire and makes it burn hotter.

 

[actaeon277]

This stuff is fun.

https://en.wikipedia.org/wiki/Otto_fuel_II

It does not need exposure to any oxidant to ignite and release energy, as its three components will react among themselves whenever vaporised and heated.

 

[rkwhyte2]

I just watched a channel 6 news report where the announcer warned the public that oxygen is "HIGHLY FLAMMABLE". Why do news agencies, and people, insist on repeating that lie. Oxygen IS NOT FLAMMABLE!!! It IS necessary for OTHER things to burn, and in high concentrations, OTHER THINGS will burn hotter and faster. I have even seen a sign in a hospital: "warning, flammable oxygen in use". Say what? There is NO SUCH THING AS FLAMMABLE OXYGEN! OK, rant over.

Here is why they had that report.

https://www.indystar.com/story/news...-suspected-fatal-indianapolis-fire/627128002/

 

[Ziggidy]

I will not deny that some fuels do not need O2 to burn because they react with each other. I wonder how those fuels would react if O2 was introduced?

 

[actaeon277]

We had to have a safety brief at work.
Workers often use an air line to blow all the dirt off their clothes. Which they are already not supposed to do, due to risks of blowing stuff into the eyes or the skin.
But, sometimes the oxygen line is closer, and workers have been known to use the oxygen line.
Well, some oxygen will be trapped in the clothing. Between the clothes and the skin. And in the clothing itself.
So... working in a steel mill.. ignition sources.. well, fill in the blank.
Yup, it's not the oxygen. But clothes ignite. Even fire retardant ones.

 

[Ziggidy]

Here is why they had that report.

https://www.indystar.com/story/news...-suspected-fatal-indianapolis-fire/627128002/

I have seen individuals who decided they could smoke or cook while wearing O2 cannula. I have see the results of drivers who decided they could smoke while in a van that delivered liquid Oxygen. Unfortunately the news media are not experts or even well educated in everything they report on. IMO, although wrongly reported, they are warning people to be careful. It is not hurting anyone and may actually save someone's life.

 

[actaeon277]

I will not deny that some fuels do not need O2 to burn because they react with each other. I wonder how those fuels would react if O2 was introduced?

Otto fuel is stable.
During an Otto fuel spill, the concern is that if exposed to heat, it will create hydrogen cyanide. Which tends to be fatal.
So, we'd isolate each compartments ventilation system. Our sub, and most of the ones in my day, had multiple compartments.
But modern subs tend to have less compartments. 688s, which are getting old, only have 2 compartments.
The next thing done is to deenergize any heaters or heat source.
Then clean up.
But that was limited to torpedomen, so I'm not sure what went on there.

 

[rvb]

We had to have a safety brief at work.
Workers often use an air line to blow all the dirt off their clothes. Which they are already not supposed to do, due to risks of blowing stuff into the eyes or the skin.
But, sometimes the oxygen line is closer, and workers have been known to use the oxygen line.
Well, some oxygen will be trapped in the clothing. Between the clothes and the skin. And in the clothing itself.
So... working in a steel mill.. ignition sources.. well, fill in the blank.
Yup, it's not the oxygen. But clothes ignite. Even fire retardant ones.

A coworker used to fly B52s. He has a very funny story about a crew mate who decided to stick an o2 line down his suit to cool off because they were roasting hot sitting waiting on the tarmac. then, he decided to have a smoke.... basically body hair, ALL body hair, became the fuel source.

-rvb

 

[actaeon277]

A coworker used to fly B52s. He has a very funny story about a crew mate who decided to stick an o2 line down his suit to cool off because they were roasting hot sitting waiting on the tarmac. then, he decided to have a smoke.... basically body hair, ALL body hair, became the fuel source.

-rvb

Yup.


And people wonder why I'm a fanatic when it come to putting out fires.