Re: slight turbidity in solutions

From: Mohammed Farooq (farooq_w_at_hotmail.com)
Date: 09/15/04 

Date: 15 Sep 2004 07:21:01 -0700

farooq_w@hotmail-dot-com.no-spam.invalid (Farooq) wrote in message news:<414772ac$1_2@127.0.0.1>...
> > Wilco Oelenwrote:
>Having cloudy solutions is very annoying in some experiments and for
>photo prints it also is bad. Glossy surfaces tend to look dull and
>irregular if small particles have deposited on them. That's why I do
>quite some effort in getting clear solutions and that's why I asked
>the question about the chemicals I mentioned.

Then why don't you simply filter those solutions? I understand that
filtration takes a long time (a rather boring process) especially for
large solution volumes, but you can can buy a cheap vacuum pump, or a
water aspirator (which is usually described in old books) to hasten
filtration by suction. Have a look at:
http://www.ic.sunysb.edu/Class/che133/techniques/suctfilt/suctfilt.html

Note that you can even modify this technique suitable for your use.
Instead of a Buchner funnel as described in the link given above, you
can use an ordinary conical funnel (the filter paper then needs to be
strong).