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Pumping Mercury? (Patreon)

Published:
2017-02-20 09:13:04
Imported:
2021-10

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mercury water pump

I see how high a little electric water pump can pump mercury

Comments

Alyssa Anderson

The periodic table of videos on NaK shows a really clever pump based on running current through the liquid at right angles to a magnetic field. The prof in the video doesn't think it would work with mercury, but would be interesting to try I think.

Anonymous

I think that mercury is too dense (heavy) for that. Nak is made of two quite light elements so it's light enough to move as it does

U.S. Water Rockets

You could probably easily make a peristaltic pump yourself that would have the power needed to lift the mercury. You could power it with a drill motor or some other gear drive motor.

Anonymous

Don't know the price of each pump, but you could use a multistage system. I'm imagining using three, and each pumps into a beaker that's 9 in higher than it, then have a tube in the top beaker that goes to the capillary. But you could probably ditch that last beaker, and just use a tube with a bend at the top at 25 in above the capillary.

CodysLab
>>3994416

Yeah I did some basic calculations and found that in order to get 12 psi I would need something like hundreds of amps or an insanely powerful magnet.

Anonymous

I have a rotary vane pump from an old commercial-duty espresso machine. I don't remember the specifics, but it should do at least 10 BAR. If you think it will do the trick, or otherwise want it for Science, I could send it your way.

Nile Red

I had a pump that was that size, but it was barely enough to pump the water through my condenser. I paid about $70 CAD for a much buffer one. It is at least a few times stronger.

Anonymous

Mr Nile red. I'm star struck hahaha. Love your chemistry videos

Anonymous

What about going real old school, and making a rope pump? I would expect that most modern water pumps trying to push mercury would blow out at some point.

dancer42

so pumping power and low vacuum so if you run the mechanical pump to get 10 to the - 3to 4 tor you could use a stack of thermocouples to get below the liquid temp for nitrogen the cryopump should get another couple of tor then you could use an oil diffusion pump or an ion displacement pump or both you already formed glass for the mercury pump an oil diffusion pump heats oil and forces the steam at very high velocity into a catch sucking up any molecules that get in the way the oil will eventually get saturated and need to get replaced, an ion displacement pump does much the say you fire a stream of fast moving ions across a gap in your vacuum into a target catching any molecules that get in the way heat the target once in awhile when the high vacuum is not critical and the roughing pump can scavenge the out gassing almost any way you are going to get high vacuum will take more than one type of pump to get you there. i once ran a mass spec. leak detector for an air conditioner company the rig was supposed to work at 10 to the -7 tor and used a roughing pump a cryopump an oil diffusion pump as well as an ion implantation pump i was seldom able to run lower that 10 to the -5 tor the other 2 operators did not understand the equipment as well as i and 1 other so i usually spent my entire shift trying to decontaminate my machine while running my shift. tiny leak oil water gas embedded in solids like metal can easily mess you up so good luck with it and if you want to try aqn ion diffusion pump i have an old laser disc player laser power supply it puts out 7.4 kv at 12v or by replacing 1 resistor will put out 14.8 kv at 24v input, it does not put out much current but then you do not need much to test out the idea. say something and i will mail it to you.