[alt-photo] Re: Substitute for citric acid

[Loris Medici]

Lime-away is phosphoric acid but other similar products may contain
hydrochloric acid, which - I presume - may act harshly against the
silver image, therefore beware! (Even citric acid does something to
the silver image; the color changes - and the image weakens -
considerably when you put the rinsed - but not yet fixed - print in
the citric acid clearing bath...)

Regards,
Loris.


On 21 Ara 2011, at 21:50, Don Bryant <donsbryant at gmail.com> wrote:

> You can also use products like Lime-Away or similar products that remove
> rust stains. It works, I've tried them.
>
> -----Original Message-----
> From: alt-photo-process-list-bounces at lists.altphotolist.org
> [mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf Of
> Trevor Cunningham
> Sent: Wednesday, December 21, 2011 11:19 AM
> To: The alternative photographic processes mailing list
> Subject: [alt-photo] Re: Substitute for citric acid
>
> Seriously? Just wash the print in a liter of 7UP?
>
> On 12/21/11 6:32 PM, Don Bryant wrote:
>> Seven Up!
>>
>> -----Original Message-----
>> From: alt-photo-process-list-bounces at lists.altphotolist.org
>> [mailto:alt-photo-process-list-bounces at lists.altphotolist.org] On Behalf
> Of
>> Trevor Cunningham
>> Sent: Wednesday, December 21, 2011 10:29 AM
>> To: The alternative photographic processes mailing list
>> Subject: [alt-photo] Substitute for citric acid
>>
>> Looking into Kallitype. A clearing agent calls for a 3% citric acid
>> solution. Is acetic too weak/strong for a substitute? Recommendations?
>> My local chem supplier is out of citric acid.
>>
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