The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

Home | About | Photography | Contact






Gelatino-Chloride II.
The Phosphate Bath. Solution A.
Ammonium sulphocyanide            ...... I oz.
Sodium phosphate............ I ..
Distilled water ............ 25 ozs.
Solution B.
Chloride of gold ............ 15 grs.
Distilled water         ............ 3 ozs.
Mix for use by pouring 1 part of B into 10 parts of A. This bath gives bluish-black tones.
III. Solution A.
Chloride of gold............ 15 grs.
Distilled water ............ 60 ozs.
Solution B.
Ammonium sulphocyanide...... 1 oz.
Alum.................. 1 ..
Ammonium carbonate ... ... ... 4 grs.
Distilled water ... ... ... ...      23 ozs.
For use, pour 3 parts of A into 4 parts of B, with deep printing. This bath gives deep black tones. For rich chestnut brown with no trace of blue, dilute the mixed bath with three times the quantity of water.
IV.
A New Combined Toning and Fixing Bath.
Dr. Liesegang recommends the following in the International Annual, 1889: -
Solution A.
Chloride of gold ...... ...... 15 grs.
Distilled water         ............ 3 ozs.
Solution B.
Ammonium sulphocyanide ......      60 grs.
Common salt ... ... ... ...    240 ,,
Alum..................    120 ,,
Hyposulphite of soda ... ......'      2 ozs.
Distilled water ............      12 ..
352