[Histonet] Storage of strong bases in glass
gcallis <@t> montana.edu
Mon Apr 12 10:00:10 CDT 2004
This was one of the first things learned in a chemistry class milleniums
ago. Yes, you are correct in NOT storing 10 M sodium hydroxide in glass.
This base etches the glass e.g. eats glass surface! and if you wash glass
storage jar, it appears as a milky defect on glass surface that cannot be
removed. Use plastic bottle or if you don't use a huge amount, a 50 ml
conical tube. Set an expiration date, sometimes the solution has
flocculant gunk floating on bottom, toss and make new or make up as much as
you use in a year?
At 10:31 AM 4/12/2004 -0400, you wrote:
>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.
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