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Paging all chemistry experts: how can I tell if it's N2 or Air? - Printable Version +- MacResource (https://forums.macresource.com) +-- Forum: My Category (https://forums.macresource.com/forumdisplay.php?fid=1) +--- Forum: Tips and Deals (https://forums.macresource.com/forumdisplay.php?fid=3) +--- Thread: Paging all chemistry experts: how can I tell if it's N2 or Air? (/showthread.php?tid=119004) |
Paging all chemistry experts: how can I tell if it's N2 or Air? - space-time - 06-21-2011 I have this line in the lab which was N2. They did some work and re-labeled it with "Oil Free Compressed Dry Air", but they didn't remove the Nitrogen label. Whan I asked WTF is this, they removed the CDA label and told me it's N2. I don't trust them and I want to check, without climbing in the ceiling to check where the line is really connected. Even then I can't be 100% sure. if this were another place I would burn a candle and see if it burns, it should NOT if this is indeed N2. I cannot burn a candle here, I would set up fire alarms. I could force one of my less friendly co-workers breathe this stuff and see if they pass out. But I am looking into some non arson, non violent methods. any ideas? Thanks Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - MikeF - 06-21-2011 Second method: Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - BernDog - 06-21-2011 Does it smell all nitrogeny? Sorry. Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - Paul F. - 06-21-2011 A CANDLE would set off the fire alarms? Those are some serious fire alarms! Even a little tiny birthday cake candle? The only other thing i can think of is if the coefficient of thermal expansion is significanly different, fill a balloon, and put it in the freezer for a while and measure it... But i don't know if if the difference between N2 and air would be measurable in any reasonable manner. Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - cbelt3 - 06-21-2011 Politely ask the facility manager to correct the problem. Recommend that he fill a large plastic bag with the gas, then stick his head in there and see if he can breathe. If he is not willing to do that, ask him to re-inspect and certify.. IN WRITING... what the gas is. Ain't your responsibility (probably). You found a defect, make the idiots fix it. One of the project test requirements for the water processing system in the international space station was that the Project Manager had to drink a liter of the end product.. which was reprocessed urine. I always thought that was a damn clever requirement. Someone in NASA had a hell of a sense of humor. Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - haikuman - 06-21-2011 As your Dr and 6'13" Samoan Attorney I advise you to have it replaced with Nitrous Oxide/N2O Then you will know the difference *(:>* Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - space-time - 06-21-2011 Paul F. wrote: I don't want ot take any chances. Evacuate 100+ people,shut down production, fine from fire marshal.... I would be in serious trouble. I am gonna run along hose outside the facility and do experiments outside ![]() Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - haikuman - 06-21-2011 """I am gonna run along hose outside the facility and do experiments outside """ Yikersss ~!~!~!~ High PSI colonic irrigation... you are a very sic man *(:>* Rudie Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - Will Collier - 06-21-2011 space-time wrote: Spoilsport. I was going to suggest, "Breathe it and see if you turn blue." Re: Paging all chemistry experts: how can I tell if it's N2 or Air? - OWC Jamie - 06-21-2011 why run a hose outside ? This lab doesn't have a test tube you could invert fill with the "gas" and walk outside with a shove a match into to see if lack of O puts ithe flame out ? Not the greatest of tests. If it's regular compressed air it's not like you've got something explosive in the tube, it's air. Got a canary ? |