RE: [Histonet] (no subject)

From:"Tony Henwood"

Tro dissolve the iodine, make up your potassium iodide solution first.
You will find that the iodine will dissolve quite readily in this.


Tony Henwood JP, MSc, BAppSc, GradDipSysAnalys, CT(ASC)
Laboratory Manager & Senior Scientist
The Children's Hospital at Westmead,
Locked Bag 4001, Westmead, 2145, AUSTRALIA.
Tel: 612 9845 3306
Fax: 612 9845 3318

-----Original Message-----
[] On Behalf Of meint002
Sent: Friday, 17 March 2006 3:42 AM
Subject: [Histonet] (no subject)

Dear Histos,

I am trying to make a Gram's Iodine solution (1g iodine, 2g potassium
iodide, 100ml distilled water to start)and I can't get the iodine to go
into solution.  If I use a stir bar the iodine is attracted to the
magnet and doesn't come off.  I've also tried heat and that doesn't seem
to work either.  All the text books I've looked at say shake until
dissolved.  Tried that, the iodine just sits in the bottom of the beaker
and nothing.

I don't remember having this problem before in school.  All suggestions
are welcome.  Thanks in advance.

Joyce Meints

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