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Cyanotype / CaCl2 toning

Cyanotype / CaCl2 toning

REF #12
Greyish blue White Navy blue Sky blue Pale Lavender Lavender White
Ferric Ammonium Citrate [NH4]{y}[Fe{x}(C6H4O7)] sol. 20%
1
Potassium Ferricyanid K3[Fe(CN)6] sol. 8%
1
Calcium chlorid CaCl2 sol. 2%
365nm

Operating procedure

1. Make a basic cyanotype (5 min)
2. Wash for 60+30 seconds.
3. CaCl2 bath for 2 minutes.
4. Wash twice for 1 minute.