Kodak Module 9 specifications Potassium UL Bleach, Ferricyanide Bleach SR-27 SR-27R

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Constituent

Fresh Tank

Fresh and Seasoned Tank

Fresh

Replenisher Analytical

Analytical Specifications

Replenisher

Specifications

 

 

 

 

 

 

 

Potassium “UL” Bleach

 

 

 

 

Water 21-38°C (70-100°F)

700 mL

 

700 mL

 

Proxel GXL

0.07 mL

 

0.07 mL

 

KOH (45%)*

 

 

84 mL

 

KODAK Chelating Agent No. 1 (PDTA)

54 g

 

60 g

 

KBr or NaBr

92 g or 78 g

92 g or 78 g

101 g or 86 g

101 g or 86 g

Acetic Acid

13.5 mL

 

15 mL

 

Ferric Nitrate (Nonahydrate)

63 g

 

70 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)

 

1.131 ± 0.003

 

1.142 ± 0.003

Total Iron

 

9.0 ± 0.5 g/L

 

10 ± 0.5 g/L

Ferric Iron

 

9.0 ± 0.5 g/L

 

10 ± 0.5 g/L

Ferrous Iron

 

<0.5 g/L

 

<0.5 g/L

 

 

 

 

 

* DO NOT add more potassium hydroxide after ferric nitrate is added.

See Chemical Supplies and Substitutions for possible chemical alternatives.

‡ Adjust pH with glacial acetic acid, potassium carbonate, or 7.0 N sulfuric acid.

Note: See Chemical Supplies and Substitutions for calculations regarding raw chemical concentrations and alternatives.

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 temporary 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 a deficiency of chelating agent.

A pH correction can be made using sulfuric acid or potassium carbonate. Do not use phosphoric acid or strong bases such as potassium or sodium hydroxide after ferric nitrate addition.

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.

Constituent

Fresh Tank

Fresh and Seasoned Tank

Fresh

Replenisher Analytical

Analytical Specifications

Replenisher

Specifications

 

 

 

 

 

 

 

Ferricyanide Bleach

(SR-27)

 

(SR-27R)

 

Water 32-43°C (90-110°F)

900 mL

 

900 mL

 

Potassium Ferricyanide (Anhydrous) *

30.0 g

30.0 ± 5.0 g/L

49.0 g

49.0 ± 2.0 g/L

Sodium Bromide (Anhydrous)

17.0 g

17.0 ± 2.0 g/L

26.0 g

26.0 ± 2.0 g/L

Water to make

1 L

 

1 L

 

 

 

 

 

 

pH at 25.0°C (77.0°F)

 

6.5 ± 0.5

 

8.0 ± 0.3

Specific Gravity at 25.0°C (77.0°F)

 

1.027 ± 0.003

 

1.043 ± 0.003

 

 

(fresh)

 

 

 

 

 

 

 

*One gram of this compound can also be obtained by mixing 0.41 gram of potassium persulfate and 1.47 grams of sodium ferrocyanide decahydrate. The reaction between potassium persulfate and sodium ferrocyanide takes about 1 hour, after which the final adjustments to the mix should be made.

Adjust to proper pH with 2.5 N sodium hydroxide of 2.5 N sulfuric acid.

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.

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Process ECP-2E Specifications

Image 26
Contents Kodak Table of Contents Film Structure Films and Process SequenceDesignated Films Alternative Ferricyanide or UL Bleach Sequence Other Film CharacteristicsProcess ECP-2E Steps Safelights for Darkroom IlluminationProcessing Machine Design and Construction Machine DesignNormal Room Light Dark Squeegee Exhaust Construction Materials Aisi Type Plastics Austenitic Solution PolyvinylHastelloy C Bleach Ferricyanide or ULDryer Cabinet FiltersCrossover Squeegees Film LubricationMachine Exhaust and Room Ventilation Systems Operating SpecificationsMechanical Specifications Countercurrent WashesFiltration F Kodak FormulaTime Replenisher Recirculation R Process Steps 100 ft .5 mFixer 35d 35dR 27 ± @ 40 to 60 L/min Wash†† 100 Temperature TankSelecting a Bleach Formulation UL Bleach FormulationsConversion to UL Bleach Controlling Bleach Tank Concentration with Replenisher RateChemical Supplies and Substitutions Drying SpecificationsTurbulation Specifications Bleach Wash Wash-Water Flow RatesStop Wash Final WashBulk Chemicals Processing Chemicals FormulasPackaged Chemicals Suppliers of Processing Chemicals H2SO4 Solution Mixing Good mixing practicesDeveloper SD-50 Formulas and Analytical SpecificationsDeveloper Stop SpecificationsAlternate Developer Developer SD-51Accelerator AB-1b AB-1bR AcceleratorBleach Persulfate Bleach Persulfate Bleach SR-30 SR-30RAlternate Process Bleaches UL Bleach* or UL House BleachPotassium UL Bleach Ferricyanide Bleach SR-27 SR-27RFixer 35b 35-bR FixerAlternate Process Fixer Fixer 35d 35dRFinal Rinse FR-2 FR-2R Final RinseSodium Fixer Optical Sound Processing Storage of SolutionsSound Track Operating Specifications OverviewMore Information

Module 9 specifications

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