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Airgas And Praxair Industrial Gas Companies

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18 hours ago, Highrise Tower said:

I see these two companies all of over the Texas Medical Center.  Airgas and Praxair are industrial gas companies.



Praxair outside of MD Anderson north campus.




Those specific tanks are labeled 0 3 0 OX

The red 0 means "Will not burn"

The blue 3 means "Extreme danger"

The yellow 0 means "Stable"

The white OX means "Oxidizer."

My guess is it's liquid oxygen.  Hospitals use lots of oxygen.  And liquid oxygen is "extreme danger" because it is colder than −297.33 °F.   Stick your finger in that, and you can watch your arm shatter on the ground.

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