← Back to variante (MnSO4 - Vitamin C toning)

Cyanotype / MnSO4 - Vitamin C toning

REF #36

Greyish blue White Sky blue

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

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

Manganese sulfate MnSO4·H2O sol. 2%

Ascorbic acid C6H8O6 sol. 1%

365nm

Operating procedure

1. Make a basic cyanotype (6 mins), with 3 mins rinsing, do not dry.
2. MnSO4 bath for 2 mins.
3. Wash 3 times for 30 seconds.
4. Ascorbic acid bath for 1 min.
5. Wash 3 times for 30 seconds.