[Alt-photo] Re: Was Sulfamic Argyrotype and toning

[Marek Matusz]

Cor

 

It was 5 tespoons (20g) of salt, 1 tespoon of tartaric acid and a dash of platinum printing solution, maybe 3 ml. I have had this platinum solution for years. I think it is K2PtCl4 ( I am not at my darkroom now), the platinum salt used for platinum printing, it is not the platinum contrasting agent Na2PtCL6. Toning was quick, 1-3 minutes with absolutely no highlight staining.

 

Marek
 

> From: C.Breukel at lumc.nl
> To: alt-photo-process-list at lists.altphotolist.org
> Date: Wed, 15 May 2013 06:55:01 +0000
> Subject: [Alt-photo] Re: Was Sulfamic Argyrotype and toning
> 
> Hi Marek,
> 
> Thanks for sharing, very interesting! What kind of platinum toner did you use exactly ?
> 
> Best,
> 
> Cor
> 
> -----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 Marek Matusz
> Sent: woensdag 15 mei 2013 4:24
> To: alt photo
> Subject: [Alt-photo] Re: Was Sulfamic Argyrotype and toning
> 
> 
> 
> A few examples of argyrotypes on Rising Stonehendge paper treated with sulfamic acid. Untoned print also gold and platinum toning examples https://plus.google.com/photos/105732508998271877151/albums/5878024532012592449?authkey=CMaWrqn036yO6AE Marek 
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