Re: [Histonet] Storage of 10M NaOH

From:Lesley Weston

NaOH etches glass, so even dilute solutions should be stored in plastic and
certainly 10M should. The reason to use fresh 10M NaOH is that it absorbs
CO2 from the air, but I have kept it for some weeks without any problems.

Lesley Weston.

on 12/04/2004 7:31 AM, Eva Andersson at wrote:

> Hi,
> Maybe not a strictly histochemistry question but maybe someone could
> provide me with an answer.
> I was just told that I shouldn't store the 10M NaOH that I use for
> adjusting the pH in a glass bottle. I was told that it needed to be made
> fresh and only kept in a plastic bottle. Why is this? How long can I
> keep a stock solution?
> If anyone has any ideas please let me know.
> Eva
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