File:Air-free filtration.svg

Original file(SVG file, nominally 1,202 × 579 pixels, file size: 222 KB)

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Description

Air-free filtration


Apparatus:

a = receiving Schlenk flask (pink joint)

b = glass filter sinter/frit

c = filter stick

d = sealing bulb

e = suspension containing Schlenk flask (blue joint)

f = stopper

Method

1 = Dry apparatus and place under vacuum.

2 = Place filter stick and receiving flask (pink joint) on suspension containing flask (blue joint). Solution (blue) precipitate (green).

3 = Invert kit, light vacuum applied to lower flask, top flask sealed. Liquid passes through sinter. Precipitate trapped on sinter. Optionally, the precipitate can be washed with fresh solvent.

4 = Filtration complete, remove vacuum and fill with inert gas from top Schlenk flask

5 = Remove filter stick to obtain filtered solution (blue).

(Note if precipitate (green) is required this can be collect either (i) in a glove box, or (ii) by tapping the solid back down into (blue jointed) Schlenk flask under gravity (as shown in the drawing), or (iii) adding a new Schlenk flask to the end of the filter stick which is opposite to the blue jointed Schlenk flask, and by washing a dissolving solvent through filter stick to dissolve the precipitate and thereby transfer the precipitate into the fresh Schlenk flask. The solvent can then be removed under vacuum.)
Date
Source Re-drawn from work by Quantockgoblin
Author Original PNG by User:Quantockgoblin, SVG adaptation by User:Slashme
Permission
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Public domain I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
In some countries this may not be legally possible; if so:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
Other versions Image:Air-free filtration.png

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Date/TimeThumbnailDimensionsUserComment
current05:59, 9 June 2008Thumbnail for version as of 05:59, 9 June 20081,202 × 579 (222 KB)Slashme (talk | contribs)Fix amount of filtrate.
09:18, 7 June 2008Thumbnail for version as of 09:18, 7 June 20081,202 × 579 (221 KB)Slashme (talk | contribs)== Summary == {{Information |Description= Air-free filtration <U>Apparatus</U>: a = receiving Schlenk flask (pink joint) b = glass filter sinter/frit c = filter stick d = sealing bulb e = suspension containing Schlenk flask (blue joint) f

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