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Cyanotype / DMDTC - NiSO4 Toning

REF #96

Tan / Sable Pinkish beige Beige Coffee Brown Caramel Beige Dark Taupe Light Beige Off-White

Potassium Ferricyanid K3[Fe(CN)6] sol. 8%

Ferric Ammonium Citrate [NH4]{y}[Fe{x}(C6H4O7)] sol. 20%

Sodium Dimethyl Dithiocarbamate (DMDTC) C3H6NNaS2 sol. 2%

Nickel sulfate NiSO4(H2O)6 sol. 2%

365nm

Operating procedure

1. Make a basic cyanotype (6 min), with 30+30s rinsing, do not dry
2. NiSO4 bath for 1 min
3. Rinse for 30+30+30 seconds
4. DMDTC bath for 40 seconds
5. Rinse for 30+30+30 seconds