U of S | Mailing List Archive | alt-photo-process-l | Re: Cleric's Gold Toner

Re: Cleric's Gold Toner


Thanks for the formula and the correction on the spelling. It looks like reagents are acids or salts
so my guess is that the toner is already acidic. I doubt if the additional Tartaric Acid would change the pH so are likely correct in that all it would do would be to dilute the toner. With toners, sometimes a slight changed can produce an interesting result.


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From: david drake <daviddrakephoto@sympatico.ca>
Reply-To: alt-photo-process-l@usask.ca
To: alt-photo-process-l@usask.ca
Subject: Re: Cleric's Gold Toner
Date: Tue, 03 Apr 2007 07:49:28 -0400

The toner's full name is Clerc's Thiourea Gold Toner not Cleric's. I'm pretty sure this one is a pretty standard one.
But the formula is:

Gold Chloride (1% Solution) - 12.5 ml.
Thiourea (1% solution) - 12.5 ml.
Tartaric Acid - 0.12 gm
Sodium Chloride - 5.0 gm
Distilled water to make - 250 ml.

I got the formula off the web but it comes from 'Making Kallitypes' Dick Stevens.

I'm still not sure what kind of effect accidently raising the Tartaric Acid to 12 gm would have? Do you think that it would only dillute the effect of the toner? That's what it appeared to do.


On 2-Apr-07, at 9:20 PM, Robert W. Schramm wrote:

Dave et al,

I love to collect formulas. I don't believe I have heard of Cleric's Gold Toner. Would you please post the formula to the list?


Bob Schramm

Check out my web page at:


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