Re: Eyedropppers and UV fluorescent tubes

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From: Judy Seigel (jseigel@panix.com)
Date: 06/02/00-05:33:03 PM Z


On Fri, 2 Jun 2000, Darlington Media Group wrote:

> >If you are using eyedroppers:
> >
> >I just replaced the black rubber bulb on one of my eyedroppers for
> >ferric oxalate as it had deteriorated and was depositing black specks
> >into my DOP sensitizer. I find this needs to be done every couple of years.
>
> Seems simple but this is sound advice. I replaced several rubber bulbs on
> my droppers a few weeks ago. It seems that some chemicals in solution,
> especially gold chloride, will have a deleterious effect on rubber that
> will be aggravated if you store the bottles in a horizontal position. I
> won't do that again!

I've found that certain fluids disintegrate the rubber bulb no matter what
position, tho not necessarily the ones you'd expect. But where do you get
just the bulbs, pray tell?

Judy


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