E6 DEVELOPING PROCESS based on official manufacturers formula.
(Update version by Lawrence Edwards April 2000. N.B. Correct figures for 1 Litre measures
300ml. 600ml. 900ml. 1Ltr.
FIRST DEVELOPER.
Chelating agent No.4. 1.2 ml 2.4 ml 3.6 ml 4.0 ml
Sodium sulphite anhyd. ....... 6.0 gm 12.0 gm 18.0 gm 20.0 gm
Potassium bromide 10% sol..... 6.6 ml 13.2 ml 19.8 ml 22.0 ml
Pot. thiocyanate 20% sol..... 1.56 ml 3.12 ml 4.68 ml 5.2 ml
Potassium Iodide 0.1% sol..... 1.17 ml 2.34 ml 3.51 ml 3.9 ml
Pot. hydroxide 10% sol........ 14.4 ml 28.8 ml 43.2 ml 48.0 ml
Dimezone 'S' ................. 0.36 gm 0.72 gm 1.08 gm 1.22 gm
Potassium carbonate anhyd..... 3.66 gm 7.32 gm 10.98 gm 12.4 gm
Sodium bicarbonate anhyd...... 3.24 gm 6.48 gm 9.72 gm 10.8 gm
Potassium Hydroquinone Mono. 5.73 gm 11.46 gm 17.19 gm 19.1 gm
Water to required volume.
REVERSAL BATH.
Propionic acid ............... 3.6 ml 7.2 ml 10.8 ml 12.0 ml
Stannous chloride ............ 0.495 gm 0.99 gm 1.48 gm 1.66 gm
p-aminophenol Sol.* .......... 0.15 ml 0.3 ml 0.45 ml 0.5 ml
Sodium hydroxide ............. 1.44 gm 2.88 gm 4.32 gm 7.3 gm
Chelating agent No.4 ......... 4.5 ml 9.0 ml 13.5 ml 15.0 ml
Water to required volume.
* p-aminophenol sol.:- Propionic acid 1.0 ml; p-Aminophenol 0.1 gm
Water to 100 ml.
COLOUR DEVELOPER.
EDTA (Na2) ................... 0.69 gm 1.38 gm 2.07 gm 2.3 gm
Orthophosphoric acid ......... 2.61 ml 5.22 ml 7.83 ml 8.7 gm
Sodium bromide 10% ........... 1.8 ml 3.6 ml 5.4 ml 6.5 ml
Potassium iodide 0.1% sol..... 9.0 ml 18.0 ml 27.0 ml 30.0 ml
Potassium hydroxide .......... 8.82 gm 17.64 gm 26.46 gm 29.0 gm
Sodium sulphite anhyd ........ 1.35 gm 2.7 gm 4.05 gm 4.5 gm
Citrazinic acid .............. 0.24 gm 0.48 gm 0.72 gm 0.8 gm
* CD-3 ....................... 2.4 gm 4.8 gm 7.2 gm 8.0 gm
# HS-104 ..................... 0.3 gm 0.6 gm 0.9 gm 1.0 gm
Water to required volume.
* CD-3 Always fully dissolve in min of water before slowly adding.
# HS-104 Dissolve in warm water before adding.
CONDITIONER BATH.
Sodium sulphite anhy.......... 3.0 gm 6.0 gm 9.0 gm 10.0 gm
EDTA acid .................... 2.55 gm 5.1 gm 7.65 gm 8.0 gm
Thioglycerol ................. 0.12 ml 0.24 ml 0.36 ml 0.4 ml
Water to required volume.
BLEACH.
Potassium nitrate ............ 7.5 ml 15.0 ml 22.5 gm 25.0 gm
Potassium bromide ............ 33.6 gm 67.2 gm 100.8 gm 112.0 gm
EDTA NaFe .................... 43.5 gm 87.0 gm 130.5 gm 145.0 gm
EDTA free acid ............... 1.2 gm 2.4 gm 3.6 gm 4.0 gm
Ammonia 30% .................. 1.2 ml 2.4 ml 3.6 ml 4.0 ml
Water to required volume
FIXER.
Ammonium thiosulphate 60% 35.4 ml 70.8 ml 106.2 ml 118.0 ml
EDTA (Na2) ................... .28 gm .57 gm 0.85 gm 94.0 gm
Sodium metabisulphite ........ 2.79 gm 5.58 gm 8.35 gm 9.3 gm
Sodium hydroxide 10% sol. 6.00 ml 12.0 ml 18.0 ml 20.0 ml
Water to required volume.
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