Glacial acetic acid?
Glacial acetic acid?
I've search far and wide and coudn't find a source of this invaluable fixative. Does anybody know where to find Glacial acetic acid that's relatively cheap in Canada?
Re: Glacial acetic acid?
Yeah and shipping prices and restrictions are a pain.
Re: Glacial acetic acid?
Yvan if possible could you ship a portion of your acid to Canada inexpensively?
Re: Glacial acetic acid?
Hi, fortunately we have easy access to glacial acetic acid here in the UK - but perhaps there's a 'pro-rata' method to formulate your FAA(50) which has the following formulation according to Ruzin, and this is the formula I mix myself and use routinely....
(I use IPA as Ethanol is not available to the amateur here in the UK)
IPA 50%
GAA 5%
Formalin 10%
DIW 35%
Consider perhaps if the source of water (i.e. the DIW) could be 'part of the acetic acid' source instead of pure DIW...
If 100ml of the above FAA includes 5% GAA perhaps you may find acetic acid at 12.5% and add 40ml of this to get the required 5% (i.e. 5ml in 100ml) into the mixture - this 12.5% acetic acid may well be available (or similar but higher perhaps, rather than the 'full-on' glacial strength)to you in 'some other guise'.
This may then give the formulation of 100ml as;
IPA 50ml
acetic acid (12.5%) 40ml
Formalin 10ml
DIW (not needed as in the acetic acid)
This should give the correct formula with the use of only 12.5% acetic acid rather than the unavailable glacial...
Of course the ratios may be altered accordingly if acetic acid is available in other concentrations (with water of course) via a similar simple calculation...
May be worth therefore looking for a source of 12.5% (or higher) acetic acid instead of glacial?
May be worth a try...
(I use IPA as Ethanol is not available to the amateur here in the UK)
IPA 50%
GAA 5%
Formalin 10%
DIW 35%
Consider perhaps if the source of water (i.e. the DIW) could be 'part of the acetic acid' source instead of pure DIW...
If 100ml of the above FAA includes 5% GAA perhaps you may find acetic acid at 12.5% and add 40ml of this to get the required 5% (i.e. 5ml in 100ml) into the mixture - this 12.5% acetic acid may well be available (or similar but higher perhaps, rather than the 'full-on' glacial strength)to you in 'some other guise'.
This may then give the formulation of 100ml as;
IPA 50ml
acetic acid (12.5%) 40ml
Formalin 10ml
DIW (not needed as in the acetic acid)
This should give the correct formula with the use of only 12.5% acetic acid rather than the unavailable glacial...
Of course the ratios may be altered accordingly if acetic acid is available in other concentrations (with water of course) via a similar simple calculation...
May be worth therefore looking for a source of 12.5% (or higher) acetic acid instead of glacial?
May be worth a try...
John B
Re: Glacial acetic acid?
You might try a photography source. Stop bath is glacial acetic acid.
Arnold, Missouri
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