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Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

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 #1 
Old 2004-01-03, 18:12
moonmeister moonmeister is offline
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Default Filtering MG H20

It has been a long time since I used a coffee

filter for other than caffeine. Now it all

comes back to me. How all the little pores in

the filter immediately plug up.

I'm not using Tobacco today, so I'm fidgety

& jumpy. It's -38c with the windchill & I

want to kill!!!!

So, ANY tips on filtering this damn pulp? 10

ml an hour is too slow!

Tranks to you, tranks to you, very much
 #2 
Old 2004-01-03, 18:44
Regular
 
Default Re: Filtering MG H20

Well I can really only suggest here to break-it-up intomultiple funnels and to remember to makesure the filters are pre-wetted. How much mL are you looking at in all?!

For relatively small filtrations I devised a couple years ago using a 60mL cow syringe(they come with the tips off and sold seperately) and took a piece of vinyl tubing thatfit snugly over the tip and graduted up to the OD(outer diameter) of the funnel tip and used this a as an effective method of vacume filtration.

Pull that plunger back and we're talking serious suction forces at work!!! And no we're not referring to the crack-ho's down the street!! hehe......

I recommend investing in buying for future filtrations, filter paper. Grade 1 and grade 5. They enable less "pour-throughs" and eliminate with eficacy unwanted particulates and solids unwanted in the resulting solutionbeing collected below the funnel.

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