RE: Sulfuric acid storage ( was RE: A newcomer into the alt. process world...)

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From: Loris Medici (lorism@tnn.net)
Date: 07/04/03-01:31:06 AM Z

Hi Sil,

> -----Original Message-----
> From: Sil Horwitz [mailto:silh@earthlink.net]
> Sent: Thursday, July 03, 2003 8:03 PM
> To: alt-photo-process-l@sask.usask.ca
> Subject: Sulfuric acid storage ( was RE: A newcomer into the
> alt. process world...)
>
> 1) 5% sulfuric acid (actually any concentration) is safe in a
> glass bottle. Except for various fluoric acids, all acids are
> safe in glass. Alkalies (even a low level one such as sodium
> carbonate) can etch glass, but not acids.

Good to know that. I also have a glass bottle filled with 5% Sodium
Sulfide solution. Is Sodium Sulfide an alkali? (Sorry for such basic
questions, I'm no good in chemistry)

> 2) Depends on the plastic. Laboratory bottles, made of high
> density polyethylenes or polypropylene are exceptional good
> for concentrated acids (even hydrofluoric, etc). The problem
> ...

I feel better now. Will store the acid in its original plastic packaging
enclosed in another plastic box.

Thanks for the reply.

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