Re: pinhole chromatography

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From: marc crown (mcrown@gwhs.org)
Date: Wed Nov 12 2003 - 18:10:05 PST 

Date: Wed, 12 Nov 2003 18:10:05 -0800
Subject: Re: pinhole chromatography
From: marc crown <mcrown@gwhs.org>
Message-Id: <7F300EB4-157E-11D8-A236-000393DCEEB8@gwhs.org>

Thanks Jessica. I'm familiar with the simple paper chromatography set
up and yours is elegantly simple. But, I am looking for someone who has
seen or done a paper chromatography with a spray bottle. I saw the
results hanging on a classroom wall and they were very cool. Waver
fronts heading in different directions like a wild tie-dye. My
co-worker has heard of this too but for the life of us we can't find
any reference to it.
I'm gonna experiment with it myself this weekend but I would love to
hear from someone who has done it.
marc

On Wednesday, November 12, 2003, at 04:15 PM, jessica wrote:

> Is is a simple demo. Draw a line in PENCIL at the bottom of a piece
> of filter paper (about 2cm). Put dots of different colored ink at 3
> or 4 places on the line. Set the filter paper upright in about 1.5cm
> of acetone (a beaker works great for this) cover with saran wrap.
> After 15-30 minutes your tie die should be present. It occurs due to
> the capillary action and the different sized colors traveling at
> different speeds.
> Jessica Ross
>
>
>
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