← Back to process (Hydrargotype)

Hydrargotype

REF #79

Grey yellow Tan / Sable Pinkish beige Taupe Light Taupe Light Beige Off-White

Dipotassium tetracyanomercurate K2Hg(CN)4 sol. 10%

Oxalic acid HOOC-COOH,2H2O sol. 5%

Iron(II) oxalate FeC2O4(H2O)x sol. 20%

365nm inactinique

Operating procedure

Everything must be done under red-light conditions, even drying.

1. Mix all components
2. Spread onto the sheet
3. Leave to dry for 30 minutes
4. Expose (20 minutes)
5. Wash with water for 3 x 30 seconds