Kodak Module 9 specifications Alternate Process Bleaches, UL Bleach* or UL House Bleach

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Alternate Process Bleaches

Constituent

Fresh Tank

Fresh and Seasoned Tank

Fresh

Replenisher Analytical

Analytical Specifications

Replenisher

Specifications

 

 

 

 

 

 

 

UL Bleach* or “UL House” Bleach*

 

 

 

 

Water 21-38°C (70-100°F)

700 mL

 

700 mL

 

Proxel GXL

0.07 mL

 

0.10 mL

 

Ammonium Hydroxide Solution (28%)

54 mL

 

64 mL

 

KODAK Chelating Agent No. 1 (PDTA)

44.8 g

 

51 g

 

Ammonium Bromide (NH4Br) or

23.8 or 25 g

23.8 or 25 ± 3 g/L

30.7 or 32.3 g

30.7 or 32.3 ± 3 g/L

Sodium Bromide (NaBr)

 

 

 

 

Acetic Acid Solution (90%)

10 mL

 

14.5 mL

 

Ferric Nitrate (Nonahydrate)

53.8 g

 

61.2 g

 

Water to make

1 L

 

1 L

 

 

 

 

 

 

pH at 25.0°C (77.0°F)§

 

5.30 ± 0.20

 

5.30 ± 0.20

Specific Gravity at 25.0°C (77.0°F)

 

1.056 ± 0.003

 

1.066 ± 0.003

Total Iron

 

7.50 ± 0.50 g/L

 

8.20 ± 0.50 g/L

Ferric Iron

 

7.50 ± 0.50 g/L

 

8.20 ± 0.50 g/L

Ferrous Iron

 

<0.5 g/L

 

<0.5 g/L

 

 

 

 

 

*This formulation for bleach replenisher and tank can also be used as a “house” bleach for Process ECN and Process ECP. The rate of replenishment would be adjusted for each process to arrive at the appropriate tank concentrations for each constituent. The starting point replenishment rate recommendations for Process ECN and Process ECP are 200 mL/L and 400 mL/L respectively.

You can substitute ammonium acetate for ammonium hydroxide and acetic acid. See Chemical Supplies and Substitutions .

‡ When using 35% solution by weight, use 70.5 g/L in Tank, and 80.2 g/L in Replenisher. § Adjust pH using glacial acetic acid, 7.0 N sulfuric acid, or 20% ammonium hydroxide.

Note:

It is especially important to follow the Good mixing practices: when preparing this bleach.

Follow exactly the mix order given above.

Check the solution pH before starting the ferric nitrate addition. It should be between 8 and 8.5; adjust if necessary.

Add the ferric nitrate solution slowly while mixing.

The solution should be clear and yellow after completion of the ferric nitrate addition and subsequent mixing. A temporarily cloudy solution caused by too low a pH will clear during pH adjustment.

A solution which stays red for a long time after mixing indicates an excess of iron or deficiency of chelating agent.

A pH correction can be made using sulfuric acid or ammonium hydroxide. Do not use phosphoric acid or strong bases such as potassium or sodium hydroxide.

When processing more than one tank turnover of VISION Premier Color Print Film, be sure to monitor the retained silver in the image area D-max.

Process ECP-2E Specifications

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Contents Kodak Table of Contents Designated Films Films and Process SequenceFilm Structure Process ECP-2E Steps Other Film CharacteristicsAlternative Ferricyanide or UL Bleach Sequence Safelights for Darkroom IlluminationMachine Design Processing Machine Design and ConstructionNormal Room Light Dark Squeegee Exhaust Construction Materials Hastelloy C Plastics Austenitic Solution PolyvinylAisi Type Bleach Ferricyanide or ULCrossover Squeegees FiltersDryer Cabinet Film LubricationMechanical Specifications Operating SpecificationsMachine Exhaust and Room Ventilation Systems Countercurrent WashesTime Replenisher Recirculation R Process Steps Kodak FormulaFiltration F 100 ft .5 mFixer 35d 35dR 27 ± @ 40 to 60 L/min Wash†† 100 Tank TemperatureConversion to UL Bleach UL Bleach FormulationsSelecting a Bleach Formulation Controlling Bleach Tank Concentration with Replenisher RateTurbulation Specifications Drying SpecificationsChemical Supplies and Substitutions Stop Wash Wash-Water Flow RatesBleach Wash Final WashPackaged Chemicals Processing Chemicals FormulasBulk Chemicals Suppliers of Processing Chemicals H2SO4 Good mixing practices Solution MixingDeveloper Formulas and Analytical SpecificationsDeveloper SD-50 Alternate Developer SpecificationsStop Developer SD-51Bleach Persulfate Bleach AcceleratorAccelerator AB-1b AB-1bR Persulfate Bleach SR-30 SR-30RUL Bleach* or UL House Bleach Alternate Process BleachesFerricyanide Bleach SR-27 SR-27R Potassium UL BleachAlternate Process Fixer FixerFixer 35b 35-bR Fixer 35d 35dRSodium Fixer Final RinseFinal Rinse FR-2 FR-2R Sound Track Operating Specifications Storage of SolutionsOptical Sound Processing OverviewMore Information

Module 9 specifications

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