File:Air-free filtration.svg

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

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Summary

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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
(Reusing this file)
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

File history

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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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