danton
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vacuum filtration
I want the ability to perform vacuum filtration but a proper vacuum pump is too expensive right now. I can't use an aspirator on a water tap as my tap
water flow rate is much too low. My next thought is a manual vacuum pump for automotive brake bleeding. Something like this:
https://tinyurl.com/3pv23ssc
Has anyone else used one and do they work or is there something i'm missing?
Advice appreciated, thanks
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Precipitates
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Location: SE Asia
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Mood: Acid hungry
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They work - the Explosions&Fire youtuber often uses one to vacuum filter solutions.
Only downside I can see is lots of pumping, and drying precipitates by leaving them on vacuum for 30 mins to an hour or so becomes less practical -
unless you want to pump for this duration!
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danton
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Quote: Originally posted by Precipitates  |
Only downside I can see is lots of pumping, and drying precipitates by leaving them on vacuum for 30 mins to an hour or so becomes less practical -
unless you want to pump for this duration!
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Thanks, yes good point about drying. Maybe I should try and find a reasonably priced electric automotive pump. The lab models are just too expensive.
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Sulaiman
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Have a look at the pump used by keras here
https://www.sciencemadness.org/whisper/viewthread.php?tid=16...
More than adequate.
(I use even cheaper pumps,
so far....-65kPa is ok, -80kPa is good, -100kPa is bad as it will boil water)
CAUTION : Hobby Chemist, not Professional or even Amateur
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danton
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Thanks, I've found a similar pump online. Brilliant.
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Sulaiman
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I like to put a hose from the outlet of the vacuum pump to somewhere far from me,
this minimises vapours and noise getting to me.
CAUTION : Hobby Chemist, not Professional or even Amateur
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