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Formulas for Process E-4 Solutions
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Kodak discontinued its packaged chemicals for Process E-4 several years ago. The formulas for mixing the solutions from the individual chemicals are listed below. Be sure to add the components in the order given in the formula.
Note: Safe handling of any chemical is the responsibility of the user. If you don't have experience in mixing chemical formulas, obtain the aid of an experienced chemist. Handle photographic chemicals and processing solutions with care. Observe the safe-handling information and precautionary labels provided with each product and follow the instructions carefully.
Before beginning any mixing operation, read and be sure you understand the precautionary information on the product labels and in the Material Safety Data Sheet (MSDS) from the manufacturer of each chemical you use. You can obtain MSDS for Kodak products from www.Kodak.com/go/MSDS.
For chemicals produced by others, contact the manufacturer.
| Water at 35 to 38ºC (95 to 100ºF) |
850 mL |
Succinaldehyde-bis-bisulfite
(KODAK Hardening Agent HA2)
Succinaldehyde Disodium Bisulfite |
10.00 grams |
| Sodium sulfate, anhydrous (desiccated) |
147.00 grams |
Aminoacetic acid
(KODAK Solubilizing Agent SA-2) (Glycine) |
1.00 grams |
| Sodium bromide |
2.00 grams |
| Sodium acetate, anhydrous |
15.00 grams |
| Formaldehyde, 37% solution (12% methanol) |
28.35 grams |
| Acetic acid, glacial STIR FOR 5 MINUTES; THEN ADD |
5.24 grams |
| Water to make |
1.00 litre |
The pH or prehardener and replenisher is 4.80 ± 0.10 at 27ºC (80.6ºF).
The specific gravity is 1.136 ± 0.003 at 27ºC (80.6ºF).
Note: Fresh replenisher is colorless, but the solution turns dark purple after standing.This does not have any adverse photographic effects.
| Water at 21 to 27ºC (70 to 80ºF) |
800 mL |
Hydroxlamine sulfate
(KODAK Neutralizing Agent NA-1) |
12.60 grams |
| Sodium Bromide, anhydrous |
11.90 grams |
| Acetic acid, glacial |
7.00 grams |
| COOL TO 29ºC (85ºF); THEN ADD, WITH STIRRING |
|
| Sodium Hydroxide, 50% solution |
9.6 grams |
| COOL TO 49ºC (120ºF); THEN ADD |
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| Sodium sulfate, anhydrous |
23.5 grams |
KODAK Anti-Fog No. 6
(3-Methyl Benzothiazolium p-toluenesulfonate) |
0.021 grams |
| Water to make |
1.00 litre |
The pH of neutralizer and replenisher is 5.25 ± 0.15 at 27ºC (80.6ºF).
The specific gravity is 1.043 ± 0.005 at 27ºC (80.6ºF).
| Water at 32 to 38ºC (90 to 100ºF) |
800 mL |
| Sodium sulfite, Anhydrous (desiccated) |
39.00 grams |
| KODAK ELON Developing Agent |
5.00 grams |
| Hydroquinone |
5.90 grams |
| Quadrafos (Essex) |
2.00 grams |
| Sodium carbonate, monohydrated |
28.1 grams |
| Sodium bromide, anhydrous |
1.50 grams |
Potassium iodide
(0.1% solution in water) |
9.00 mL |
| Sodium thiocyanate, 51% solution |
2.59 grams |
| Water to make |
1.00 litre |
The pH of first developer is 9.90 ± 0.10 at 27ºC (80.6ºF).
The specific gravity is 1.065 ± 0.003 at 27ºC (80.6ºF).
| Water at 32 to 38ºC (90 to 100ºF) |
800 mL |
| Sodium sulfite |
45.60 grams |
| KODAK ELON Developing Agent |
5.30 grams |
| Hydroquinone |
7.00 grams |
| Quadrafos (Essex) |
2.00 grams |
| Sodium carbonate, monohydrated |
29.30 grams |
| Sodium bromide |
0.50 grams |
| Sodium hydroxide, 50% solution |
3.44 grams |
| Sodium thiocyanate, 51% solution |
2.70 grams |
| Water to make |
1.00 litre |
The pH of first developer replenisher is 10.04 ± 0.05 at 27ºC (80.6ºF).
The specific gravity is 1.067 ± 0.003 at 27ºC (80.6ºF).
| Water at 21 to 27ºC (70 to 80ºF) |
900 mL |
| Acetic acid, glacial |
28.5 grams (30 mL) |
| Sodium hydroxide, granular |
1.75 grams |
| Water to make |
1.00 litre |
The pH of stop bath is 3.5 ± 0.20 at 27ºC (80.6ºF).
The specific gravity is 1.000 ± 0.003 at 27ºC (80.6ºF).
| Water at 21 to 27ºC (70 to 80ºF) |
750 mL |
| Quadrafos (Essex) |
5.0 grams |
| Benzyl alcohol, photograde, inhibited |
3.25 grams |
| Sodium sulfite, anhydrous |
7.60 grams |
| Potassium iodide 0.1% solution in water |
28 mL |
| Sodium bromide, anhydrous |
0.80 grams |
| Sodium hydroxide, 50% solution |
4.1 grams |
| Ethylenediamine, 99% |
3.0 grams |
Tertiary butylamine borane, powder
(KODAK Reversal Agent RA-1) |
0.070 grams (TBAB) |
| Trisodium phosphate, dodecahydrated, crystals |
36.0 grams |
| Citrazinic acid |
1.35 grams |
| KODAK Color Developing Agent CD-3 |
10.5 grams |
| Water to make |
1.00 litre |
The pH of color developer is 11.25 ± 0.10 at 27ºC (80.6ºF).
The specific gravity is 1.035 ± 0.003 at 27ºC (80.6ºF).
| Water at 21 to 27ºC (70 to 80ºF) |
800 mL |
| Quadrafos (Essex) |
5.0 grams |
| Benzyl alcohol, photograde, inhibited |
3.82 grams |
| Sodium sulfite, anhydrous |
8.0 grams |
| Sodium hydroxide, 50% solution |
6.8 grams |
| Ethylenediamine, 99% |
3.06 grams |
Tertiary butylamine borane, powder
(KODAK Reversal Agent RA-1) |
0.070 grams |
| Trisodium phosphate, dodecahydrated, crystals |
37.60 grams |
| Citrazinic acid |
1.60 grams |
| KODAK Color Developing Agent CD-3 |
11.5 grams |
| Water to make |
1.00 litre |
The pH of color developer replenisher is 11.68 ± 0.10 at 27ºC (80.6ºF).
The specific gravity is 1.037 ± 0.003 at 27ºC (80.6ºF).
| Water at 32 to 38ºC (90 to 100ºF) |
800 mL |
| Sodium thiocyanate, 51% solution |
14.7 grams (11.0 mL) |
| Potassium ferricyanide, anhydrous |
90.0 grams |
| Sodium bromide, anhydrous |
22.5 grams |
| Disodium phosphate, anhydrous |
19.5 grams |
| Monosodium phosphate, monohydrated |
7.5 grams |
| Water to make |
1.00 litre |
The pH of bleach is 6.80 ± 0.15 at 27ºC (80.6ºF).
The specific gravity is 1.083 ± 0.003 at 27ºC (80.6ºF).
| Water at 32 to 38ºC (90 to 100ºF) |
800 mL |
| Sodium thiocyanate, 51% solution |
19.6 grams (14.9 mL) |
| Potassium ferricyanide, anhydrous |
120.0 grams |
| Sodium bromide, anhydrous |
30.0 grams |
| Disodium phosphate, anhydrous |
26.0 grams |
| Monosodium phosphate, monohydrated |
10.0 grams |
| Water to make |
1.00 litre |
The pH of bleach replenisher is 6.80 ± 0.10 at 27ºC (80.6ºF). To make a working tank solution, dilute three parts replenisher with one part water.
The specific gravity is 1.112 ±.003 at 27ºC (80.6ºF).
| Use KODAK Fixer, Process E-6 |
| Water at 32 to 38ºC (90 to 100ºF) |
800 mL |
| Formalin, 37.5% solution |
6 mL |
| Renex 30 |
0.14 mL |
| Water to make |
1.00 litre |
The pH of stabilizer and replenisher is 7.25 ± 0.75 at 27ºC (80.6ºF).
The specific gravity is 1.000 ± 0.003 at 27ºC (80.6ºF).
Kodak and Elon are trademarks.
CIS-111 • April, 2000
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