From: Sandy King (sanking@hubcap.clemson.edu)
Date: 11/13/00-10:13:56 PM Z
Liam,
No Liam, less Thymol is not better than more in this case. You need
at least 2-5cc of the 15=20% Thymol to keep gelatin at room
temperature for any reasonable period of time.
Of course gelatin will store longer refrigerated. And almost
indefinitely if you freeze it.
Sandy King
>Judy,
>
>I've kept home-made SG emulsion in perfect condition for over 3 years, with
>5 ml 2% thymol per litre (it actually improves for the first couple of
>years). Maybe, therefore, less thymol is better than more, but I also kept
>it refrigerated. At room temp the life is much shorter, depending on
>temperature. The emulsion would also have contained more than 3% gelatin
>(8-10%, as I recall), and protecting it from light is another possible
>factor.
>
>On my recent trip to Ireland, I saw the head of Saint Oliver Plunket at a
>church in Drogheda. It was creosoted in the 19th. century, as an emergency
>measure to deal with an infestation of insects, but the guide book says it
>is now protected with something called lindane. Anyone ever hear of it?
>
>
>
>Liam
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