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Offlinesublimehypocrisy
The Astronomer


Registered: 04/13/09
Posts: 84
Loc: Arizona the desert
Last seen: 7 years, 2 months
Oxygen Tank?
    #10184119 - 04/17/09 11:41 AM (14 years, 9 months ago)

Yes, I know there are a lot of threads about oxygen tanks already, but no one really answered it properly.

I live in the desert, and it's very hard to keep a terrarium humid. I was thinking of pumping small amounts of oxygen into my terrarium a few times a day instead of fanning, and only having holes at the bottom of the terrarium so the co2 can leave.

Different airs have different densities so in a closed environment like a terrarium the air will layer with the heaviest at the bottom. This is why helium balloons float up but balloons filled with co2 will fall to the ground quickly.

Oxygen is NOT flammable. Flames cannot exist without oxygen to help burn the fuel so it's essential, but it is not flammable itself unless mixed with sufficient amounts of hydrogen. Since our atmosphere is mainly nitrogen, which is inert and won't interact with anything, if you filled an area with oxygen it can only use two o2 molecules for every one h2 molecule, creating two ho2 molecules. There isn't enough hydrogen in the atmosphere to even make a decent explosion if more oxygen were added. However, if someone were to start a small fire, for example dropping a cigarette on the ground, the fire would spread very rapidly because of the excess o2 available to eat up.

But I digress; my original questions still remains, will pure oxygen harm my mushroom growth?


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Invisibledropit
Mr
Male


Registered: 01/26/09
Posts: 62
Re: Oxygen Tank? [Re: sublimehypocrisy]
    #10184141 - 04/17/09 11:47 AM (14 years, 9 months ago)

My question is: Why did you go into so much detail about the combustibility of oxygen and the bonding of H2 to O2 and so forth? I thought we were talking about mycology, not chemistry of gasses?


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OfflineJPmagic
Welcome to the Dark Side
Male


Registered: 03/02/09
Posts: 455
Loc: Midwest, US
Last seen: 8 years, 5 months
Re: Oxygen Tank? [Re: dropit]
    #10184152 - 04/17/09 11:49 AM (14 years, 9 months ago)

Because then you have idiots that say it won't work and it dangerous, and that it could blow your house up. :P


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Offlinesublimehypocrisy
The Astronomer


Registered: 04/13/09
Posts: 84
Loc: Arizona the desert
Last seen: 7 years, 2 months
Re: Oxygen Tank? [Re: dropit]
    #10184157 - 04/17/09 11:49 AM (14 years, 9 months ago)

On all the previous oxygen tank threads, people were saying that the oxygen would blow up....I don't want a bunch of pointless responses about it so i explained it up front. Do you have any information on this subject or did you just want to flame me? =P


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OfflineRogerRabbitM
Bans for Pleasure
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Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 22 days
Trusted Cultivator
OG Cultivator
Re: Oxygen Tank? [Re: JPmagic]
    #10184405 - 04/17/09 12:33 PM (14 years, 9 months ago)

Quote:

JPmagic said:
Because then you have idiots that say it won't work and it dangerous, and that it could blow your house up. :P




If you think I'm an idiot for saying it won't work, then too fucking bad.  It won't work.  In addition, if CO2 actually settled to the bottom of a terrarium as new growers seem to think it 'should', we'd all die from the industrial CO2 being emitted into the atmosphere.  There are air currents in a terrarium caused by heating of the substrates and lighting, therefore the CO2 is mixed, just as it mixes with the air in our atmosphere, and doesn't settle to the surface the way water does.

Your mushrooms don't need oxygen, they need air.  Fresh air.  Lots of it.  A terrarium should NEVER be sealed up.  In addition, very little CO2 is produced by mycelium in the fruiting stage.  CO2 is produced during the colonization phase and that doesn't happen in a terrarium. 

It's also  not hard to keep a terrarium humid in the desert.  I live in a high elevation mountain desert area, and the average RH is around ten percent, yet I have zero trouble maintaining humidity.  However, fresh air exchange is FAR more important than humidity, which can easily be made up for with misting, which you should be doing anyway.
RR


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semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
Thomas Edison


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Offlinesublimehypocrisy
The Astronomer


Registered: 04/13/09
Posts: 84
Loc: Arizona the desert
Last seen: 7 years, 2 months
Re: Oxygen Tank? [Re: RogerRabbit]
    #10184419 - 04/17/09 12:35 PM (14 years, 9 months ago)

Thanks for clearing it up for me RR. I appreciate it.


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OfflineJPmagic
Welcome to the Dark Side
Male


Registered: 03/02/09
Posts: 455
Loc: Midwest, US
Last seen: 8 years, 5 months
Re: Oxygen Tank? [Re: RogerRabbit]
    #10186354 - 04/17/09 06:36 PM (14 years, 9 months ago)

Quote:

RogerRabbit said:
Quote:

JPmagic said:
Because then you have idiots that say it won't work and it dangerous, and that it could blow your house up. :P




If you think I'm an idiot for saying it won't work, then too fucking bad.  It won't work.  In addition, if CO2 actually settled to the bottom of a terrarium as new growers seem to think it 'should', we'd all die from the industrial CO2 being emitted into the atmosphere.  There are air currents in a terrarium caused by heating of the substrates and lighting, therefore the CO2 is mixed, just as it mixes with the air in our atmosphere, and doesn't settle to the surface the way water does.

Your mushrooms don't need oxygen, they need air.  Fresh air.  Lots of it.  A terrarium should NEVER be sealed up.  In addition, very little CO2 is produced by mycelium in the fruiting stage.  CO2 is produced during the colonization phase and that doesn't happen in a terrarium. 

It's also  not hard to keep a terrarium humid in the desert.  I live in a high elevation mountain desert area, and the average RH is around ten percent, yet I have zero trouble maintaining humidity.  However, fresh air exchange is FAR more important than humidity, which can easily be made up for with misting, which you should be doing anyway.
RR




I just simply meant that there are people that would tell you not to use it because they think it is flammable.  I wasn't directing any negative comments to you at all RR :laugh:.


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OfflineRombaZomba
Stranger

Registered: 04/06/09
Posts: 111
Last seen: 14 years, 9 months
Re: Oxygen Tank? [Re: JPmagic]
    #10186441 - 04/17/09 06:51 PM (14 years, 9 months ago)

The fact of the matter is that 100% pure oxygen is highly flammable but under the proper conditions is it safe to use.


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OfflineRogerRabbitM
Bans for Pleasure
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Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 22 days
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Re: Oxygen Tank? [Re: RombaZomba]
    #10186487 - 04/17/09 06:59 PM (14 years, 9 months ago)

Oxygen is not flammable.  It's a catalyst to flame, greatly increasing the intensity and heat produced, and can become explosive when combined with petroleum products.  I once tended (after the fact) to an elderly lady in a nursing home who was invalid and on oxygen.  Her daughter noticed her lips were chapped and applied Vaseline to them.  Within an hour, the old lady's face 'exploded' into flames and killed her.
RR


--------------------
Download Let's Grow Mushrooms



semper in excretia sumus solim profundum variat

"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
Thomas Edison


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OfflineRombaZomba
Stranger

Registered: 04/06/09
Posts: 111
Last seen: 14 years, 9 months
Re: Oxygen Tank? [Re: RogerRabbit]
    #10186638 - 04/17/09 07:25 PM (14 years, 9 months ago)

Are you going to explain the anatomy of an oxygen tank next?


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Offlinesome1whoisntme
Stranger


Registered: 09/21/05
Posts: 882
Last seen: 9 years, 11 days
Re: Oxygen Tank? [Re: RombaZomba]
    #10186651 - 04/17/09 07:28 PM (14 years, 9 months ago)

Fuck, I think it's a good idea.


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"Ignore the distortion you're forced to percieve and believe that what supercedes is love, but who agrees?"


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OfflineRombaZomba
Stranger

Registered: 04/06/09
Posts: 111
Last seen: 14 years, 9 months
Re: Oxygen Tank? [Re: some1whoisntme]
    #10186692 - 04/17/09 07:39 PM (14 years, 9 months ago)

I've seen money wasted in lesser means...


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