The DARKROOM COOKBOOK, Third Edition

294 THE DARKROOM COOKBOOK
Any precipitate that forms when the copper is added will be re-dissolved. The solution should
be perfectly clear, but should be used immediately. Toning should be continued until the deepest
shadow is converted, and then for 1 minute longer. The print should be re-fi xed and then washed.
Any pink stains in the whites can be removed by treating with a 1% solution of ammonia
water.
FORMULA #161
Crimson Toner
For crimson tones on hypo-alum toned prints.
A print toned in hot hypo-alum may be further toned to a rich crimson by gold toning.
SOLUTION A
Gold chloride, 1.0 g
Water, 450.0 ml
SOLUTION B
Potassium thiocyanate (sulfocyanide), 6.0 g
Water, 450.0 ml
Add Solution A to Solution B stirring slowly so as not to precipitate the gold.
Using the Toner: After the print has been toned and thoroughly washed it should be put
through a bath made by dissolving 30.0 grams of sodium chloride in 1.0 liter of water. Rinse
the prints and then immerse in the toning bath. Prints tone in about 10 minutes and should be
fi xed and rewashed. The working solution of 900.0 ml will tone about eighteen 8 � 10� prints.
Selenium Toners
Selenium powder is highly toxic. Avoid inhaling the powder before or during mixing. Use
ample darkroom ventilation including a fume hood over the mixing area and a face mask. If a
fume hood is not available then the powder should be mixed and completely dissolved outdoors
and an appropriate fume mask used. Also, use chemical proof neoprene gloves when
handling caustic chemicals such as selenium powder, whether in powder or solution. Read
the additional cautions in Appendix 1: Safety in Handling Photographic Chemicals.
FORMULA #162
Dassonville T-55
Direct Selenium Toner
(Courtesy of Judy Seigel)
This toner produces rich plum-purple to brown tones.
*Sodium sulfi te, 25.0 g
Selenium powder, 1.0 g
*Sulfi te not sulfi de.