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<p>[QUOTE=&quot;V. Kurt Bellman, post: 3040390, member: 71723&quot;]I NEVER use ANY commercial &quot;dip&quot;. I use an Eastman Kodak concoction that I find is FAAAAAAAAAAR gentler on coins. Its primary use is for textiles that have acquired sulfides of silver stains (which toning is). Below is a clip from an archived source. I use it further diluted.</p><p><br /></p><p><span style="color: #0080ff">KODAK STAIN REMOVER S-10 </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">For Removal of Fixer Stains From Clothing </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">The following formula will remove brownish stains which occasionally appear on </span></p><p><span style="color: #0080ff">clothing where a fixing bath has been spilled or splashed. Usually, this is caused by silver </span></p><p><span style="color: #0080ff">compounds which accumulate in the fixing bath as it is used. </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">Water 96 fluid oz. 750.0 ml </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">Kodak Thiourea 10 ounces 75.0 grams </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">Kodak Citric Acid 10 ounces 75.0 grams </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">Water to make 1 gallon 1 .0 liter </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">For use: Thoroughly wet the stain with this solution and wait for the stain to </span></p><p><span style="color: #0080ff">disappear. Old stains may require more than one application and a longer time (several </span></p><p><span style="color: #0080ff">minutes) to disappear. The garment should be thoroughly washed after the stains have </span></p><p><span style="color: #0080ff">been removed. </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">Since newer-type fabrics may be involved, any garment should be tested by applying a </span></p><p><span style="color: #0080ff">small amount of the stain remover to a hidden portion (such as a shirttail or a small piece </span></p><p><span style="color: #0080ff">of the material snipped from an inside seam) to determine whether bleaching or other </span></p><p><span style="color: #0080ff">damage may occur. </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #0080ff">Caution: Like all similar solutions, this stain remover contains thiourea, a powerful </span></p><p><span style="color: #0080ff">fogging agent which will contaminate photographic materials and cause black spots. This </span></p><p><span style="color: #0080ff">solution should not be used in the immediate area where light-sensitive photographic </span></p><p><span style="color: #0080ff">materials or processing chemicals are handled. It is difficult to remove traces of this </span></p><p><span style="color: #0080ff">chemical from the hands by washing in water; therefore, contact of the skin with this </span></p><p><span style="color: #0080ff">stain remover should be prevented by the use of rubber gloves. In order to </span></p><p><span style="color: #0080ff">decontaminate the gloves, rinse the outer surfaces in a dilute solution of sodium </span></p><p><span style="color: #0080ff">hypochlorite and then wash thoroughly in warm water. This solution can be prepared by </span></p><p><span style="color: #0080ff">adding one fluid ounce of any commercial hypochlorite solution, such as Clorox, 101, </span></p><p><span style="color: #0080ff">Sunny Sol, etc., t o one quart o f water. </span></p><p><span style="color: #0080ff"><br /></span></p><p><span style="color: #000000">If you&#039;re making a liter, which I suggest, start with 35 grams of each active ingredient, not 75 grams.</span></p><p><span style="color: #000000"><br /></span></p><p><span style="color: #000000">Where the text above talks of a &quot;fogging agent&quot;, it is helpful to know what that means, chemically. I means it reduces silver compounds into metallic silver, which is kinda what you&#039;re trying to do, is it not?</span></p><p><span style="color: #000000"><br /></span></p><p><span style="color: #000000">I virtually NEVER recommend ANY dip for a well-circulated coin. They never look right.</span>[/QUOTE]</p><p><br /></p>

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