KODAK Developer System Cleaner
and Neutralizer
TECHNICAL DATA / CHEMICAL
GENERAL INFORMATION• KODAK Developer System Cleaner and Neutralizer isdesigned to remove the buildup of silver deposits indeveloper tanks, recirculation systems, and on racks
and rollers in processing machines.
• It consists of two solutions. The Cleaner removes thesilver deposit, but may leave a brown residue. Aftercleaning, the Neutralizer removes the brown residue.
• Improved features of this product are:
– Little or no odor is given off by the Cleaner.
– Simplified mixing of the Cleaner, using equalamounts of Part A and Part B.
– Longer useful life of the Cleaner, allowing it to be
saved and re-used for up to two weeks.
• No change has been made to the Neutralizer solution.

March 2010 • TI-2000

MIXING
Warning
Observe precautionary information on containers. Strongacid. Wear goggles or other eye protection when mixing or
using KODAK Developer System Cleaner and Neutralizer.
Components
Developer System Cleaner, Part A 1 bottle, liquid concentrate
Developer System Cleaner, Part B

1 bottle, liquid concentrate

Neutralizer

1 bottle, liquid concentrate

Mixing Fresh Working Solutions for General Use:For best results, prepare the necessary quantity of working
strength Cleaner just prior to use. Unused working
strength Cleaner may be stored for up to two weeks with
only a slight loss of cleaning activity. The Neutralizer may
be mixed in advance and stored for future use.

Warning
Do not use in fixer tanks!

To Make 1 Quart of Developer System Cleaner:

Do not mix Developer System Cleaner directly with
Neutralizer.
Improper mixing and handling, such as allowing the
Cleaner to come into contact with residual developer orother processing solutions, can form irritating sulfur
dioxide fumes. Use with adequate ventilation.
For Emergency Health, Safety, and Environmental
Information on all Kodak products, call: (585) 722-5151, 24
hours a day.

1. Start with 24 oz. water at 65 to 90° F (18 to 32° C)

Material Safety Data Sheets (MSDS)
Obtain the Material Safety Data Sheet for this product andother Kodak chemicals at www.kodak.com/go/msds. You
can also call (800) 242-2424, send a facsimile to (585)722-3173, or write to:Eastman Kodak Company
Material Safety Data Sheets
343 State Street
Rochester, NY 14650
Please provide the Catalog Number for this product,
CAT 150 0719, when requesting the MSDS.

2. With stirring, add 4 oz. Cleaner, Part A concentrate
3. Then, with stirring, add 4 oz. Cleaner, Part B
concentrate
4. Mix until the solution is uniform.

To Make 1 Litre of Developer System Cleaner:
1. Start with 750 mL water at 65 to 90° F (18 to 32° C)
2. With stirring, add 125 mL Cleaner, Part A concentrate
3. Then, with stirring, add 125 mL Cleaner, Part B
concentrate
4. Mix until the solution is uniform.

Or, to Mix by Proportion:
1. Divide the total quantity of working strength Cleaner
desired by 8. This value equals 1 part.
2. Start with 6 parts water at 65 to 90° F (18 to 32° C).
3. With stirring, add 1 part Cleaner, Part A concentrate
4. Then, with stirring, add 1 part Cleaner, Part B
concentrate
5. Mix until the solution is uniform.
Note: For routine cleaning of slight tar and/or silver
buildup, a dilute solution made with up to 1/2 the above
amounts of concentrates may be satisfactory.

©Eastman Kodak Company, 2010

To Make 1 Quart of Neutralizer:

Or, to Mix by Proportion:

1. Start with 28 oz. water at 65 to 90° F (18 to 32° C)
2. With stirring, add 4 oz. Neutralizer concentrate

1. Divide the total quantity of working strength
Neutralizer desired by 8. This value equals 1 part.

3. Mix until the solution is uniform.

2. Start with 7 parts water at 65 to 90° F (18 to 32° C).
3. With stirring, add 1 part Neutralizer concentrate

To Make 1 Litre of Neutralizer:

4. Mix until the solution is uniform.

1. Start with 875 mL water at 65 to 90° F (18 to 32° C)
2. With stirring, add 125 mL Neutralizer concentrate
3. Mix until the solution is uniform.

Mixing Instructions for Common KODAK Processors
Processor list is repeated to reflect metric measure and U.S. fluid measure.
Metric Measure (Litres) to Make Working Strength Cleaner:
KODAK Processor

Approximate
Developer Tank
Volume (litres)

Water (litres)

Part A
Concentrate(litres)

Part B
Concentrate(litres)

VERSAMAT Models 11, 1140, 411, 811, one dev tank

17.0

12.8

2.1

2.1

VERSAMAT Models 11, 1140, 411, 811, two dev tanks

34.0

25.4

4.3

4.3

VERSAMAT, Model 5

12.3

9.3

1.5

1.5

DEKTOMATIC, Model 65

10.5

7.9

1.3

1.3

POLYMAX

12.2

9.2

1.5

1.5

VERSAMAT 75, DN-3

11.4

8.6

1.4

1.4

VERSAMAT 75, DN-5

5.7

4.3

0.7

0.7

PROSTAR

1.3

0.9

0.2

0.2

KODAMATIC, Models 42A, 42S

8.0

6.0

1.0

1.0

KODAMATIC, Models 65A, 66S

10.6

8.0

1.3

1.3

KODAMATIC, Model 520

26.0

19.4

3.3

3.3

KODAMATIC, Model 710

27.0

20.2

3.4

3.4

KODAMATIC, Model 960

36.9

27.7

4.6

4.6

RP X-OMAT, Models M6-N, M6A-N

9.5

7.1

1.2

1.2

RP X-OMAT, Model M6AW

9.5

7.1

1.2

1.2

RP X-OMAT, Models M6B, stainless or plastic tanks

12.0

9.0

1.5

1.5

RP X-OMAT, Models M7, M7A, M7B

8.5

6.3

1.1

1.1

RP X-OMAT, Model M8

16.0

12.0

2.0

2.0

X-OMAT, Model M3

76.0

57.0

9.5

9.5

X-OMAT, Models M4, M4A, M4B-N, full cycle

25.5

19.1

3.2

3.2

X-OMAT, Models M4, M4A, M4B-N, RP-converted

27.0

20.2

3.4

3.4

X-OMAT, Models M5-N, M5A-N

9.5

7.1

1.2

1.2

X-OMAT, M20 Models 1 & 2

9.5

7.1

1.2

1.2

X-OMAT, Models M35, M35A, M35A-M

7.8

5.8

1.0

1.0

X-OMAT, Model SP

38.0

28.4

4.8

4.8

X-OMAT, Model 460RA, 480RA

10.7

8.1

1.3

1.3

X-OMAT, Model 270RA

8.5

6.3

1.1

1.1

Industrial X-OMAT, Model B

38.0

28.4

4.8

4.8

INDUSTREX, Model M6-I, stainless or plastic tanks

12.0

9.0

1.5

1.5

2

KODAK Developer System Cleaner and Neutralizer • TI-2000

U.S. Measure (Gallons and Fluid Ounces) to Make Working Strength Cleaner:
KODAK Processor

Approximate
Developer Tank
Volume (gallons)

Water (gallons +ounces)Part APart B
Concentrate
Concentrate(gallons + ounces) (gallons + ounces)

VERSAMAT Models 11, 1140, 411, 811, one dev tank

4.5

3 + 48

0 + 72

VERSAMAT Models 11, 1140, 411, 811, two dev tanks

9.0

6 + 96

1 + 16

0 + 72
1 + 16

VERSAMAT, Model 5

3.25

2 + 56

0 + 520 + 52

DEKTOMATIC, Model 65

2.6

1 + 122

0 + 420 + 42POLYMAX

3.2

2 + 51

0 + 51

0 + 51

VERSAMAT 75, DN-3

3.0

2 + 320 + 480 + 48VERSAMAT 75, DN-5

1.5

1 + 160 + 240 + 24PROSTAR

0.34

0 + 320 + 5.5

0 + 5.5

KODAMATIC, Models 42A, 42S

2.1

1 + 74

0 + 34

0 + 34

KODAMATIC, Models 65A, 66S

2.8

2 + 130 + 45

0 + 45

KODAMATIC, Model 520

6.9

5 + 220 + 1100 + 110KODAMATIC, Model 710

7.1

5 + 42

1 + 1141 + 114

KODAMATIC, Model 960

9.7

7 + 35

1 + 27

1 + 27

RP X-OMAT, Models M6-N, M6A-N

2.5

1 + 112

0 + 400 + 40

RP X-OMAT, Model M6AW

2.5

1 + 112

0 + 400 + 40

RP X-OMAT, Models M6B, stainless or plastic tanks

3.16

2 + 47

0 + 51

0 + 51

RP X-OMAT, Models M7, M7A, M7B

3.25

1 + 880 + 36

0 + 36

RP X-OMAT, Model M8

4.3

3 + 290 + 690 + 69X-OMAT, Model M3

20.0

15 + 02 + 64

2 + 64

X-OMAT, Models M4, M4A, M4B-N, full cycle

6.75

5+8

0 + 108

0 + 108

X-OMAT, Models M4, M4A, M4B-N, RP-converted

7.125

5 + 440 + 1140 + 114

X-OMAT, Models M5-N, M5A-N

2.5

1 + 112

0 + 400 + 40X-OMAT, M20 Models 1 & 2

2.5

1 + 112

0 + 400 + 40X-OMAT, Models M35, M35A, M35A-M

2.07

1 + 71

0 + 330 + 33

X-OMAT, Model SP

10.0

7 + 64

1 + 32

1 + 32

X-OMAT, Model 460RA, 480RA

2.75

2+8

0 + 44

0 + 44

X-OMAT, Model 270RA

2.25

1 + 880 + 36

0 + 36

Industrial X-OMAT, Model B

10.0

7 + 64

1 + 32

1 + 32

INDUSTREX, Model M6-I, stainless or plastic tanks

3.16

2 + 47

0 + 51

0 + 51

3

KODAK Developer System Cleaner and Neutralizer • TI-2000

PROCESSOR CLEANUP PROCEDURES
Warning
Improper handling, such as allowing the Cleaner to comeinto contact with residual developer, can form irritating
sulfur dioxide fumes. Be sure to thoroughly rinse theprocessor tanks, racks, and recirculation system with cleanwater before applying Developer System Cleaner.
Contamination of the Cleaner with developer will cause
the color to change to yellow.
Disabling the replenishment system is recommended toprevent inadvertent contamination of the Cleaner with
developer. Do not mix the Cleaner with the Neutralizer, orwith other processing solutions, except as noted below.
Observe precautionary information on containers. Usecaution, and wear appropriate protective clothing and eye
protection when handling solutions.
Use working solutions at 65 to 95° F (18 to 35° C). The
Cleaner may be used in processors that operate at up to101° F (38° C), but resetting the developer tanktemperature downward may be necessary if the Cleaner
develops an annoying odor. Remember to reset thedeveloper tank temperature to normal after cleaning iscomplete.

Cleaning Racks and Tanks in One Operation
1. Completely drain the developer from the machine andremove any filters from the circulation system.
2. Thoroughly rinse the developer tank(s) and racks. Ifrollers are hollow, remove the racks and clean themseparately to avoid contamination. (See below forcleaning racks outside of the machine.) Then fill thetank(s) with water, and turn on the recirculation pump
to completely circulate the rinse water through thesystem.
3. Completely drain the rinse water from the tank(s),racks, and circulation system.
4. Fill the developer tank(s) with working strength
Developer System Cleaner. Turn on the recirculation
pump and circulate the Cleaner for 5 to 30 minutes.
5. Completely drain the Cleaner and thoroughly rinse
the tank(s), racks, and recirculation system withwater, and then drain, as per steps 2 and 3.
Note: Steps 4 and 5 may have to be repeated whencleaning a heavy buildup of silver or tar. A telltale sign thatthe developer tank needs a second cleaning is when thecleaner solution loses its purple color, or becomes very
cloudy or murky. This happens when the cleaner is
exhausted, and you should repeat steps 4 and 5.

6. Fill the tank(s) with working strength Neutralizer.
Circulate the Neutralizer for 5 to 30 minutes.
7. Completely drain the Neutralizer and thoroughly rinse
the tank(s) and racks with water. Then fill the tank(s)with water and turn on the recirculation pump tocompletely circulate the rinse water through thesystem. Completely drain the rinse water.
8. Replace racks if they were cleaned separately. Replace
recirculation filters, refill the tanks with developer, andcheck that developer tank temperature is set tonormal.

Cleaning Racks Separately
1. Remove racks from the machine to a sink andthoroughly rinse with water to remove all traces ofdeveloper.
2. Use a wash bottle filled with working strength
Developer System Cleaner to direct a stream ofcleaner to the parts of the racks that require cleaning.
A sponge and/or brush are also effective.

Important
Do not use a spray bottle that will create a mist or vapor.
Occupational exposure to strong inorganic mists orvapors containing sulfuric acid is carcinogenic tohumans. This product is not expected to generate mists
or vapors when product instructions for mixing and use
are followed. Minimize the potential for the productionof aerosols.
Note: If the Cleaner appears to “bead up” on rack parts,
rinse off the Cleaner with water, and wet the parts with aworking strength solution of either KODAK Photo-flo 200
Solution, or KODAK Final Rinse, Process E-6. Then directly
re-apply the cleaner.
3. When the racks are clean, thoroughly rinse with waterto remove the cleaner, and drain completely.
4. Use a wash bottle filled with working strength
Neutralizer to direct a stream onto the parts of theracks that were treated with Cleaner.
5. Thoroughly rinse the racks with water to remove the
Neutralizer, and drain completely.
6. Reassemble racks if necessary, and return them to theprocessor.

Warning
Failure to adequately rinse away all of the Developer
System Cleaner before the Neutralizer is added can lead tothe formation of irritating sulfur dioxide fumes!

4

KODAK Developer System Cleaner and Neutralizer • TI-2000

Double Cleaning Procedure for Severely Dirty
Processor
1. Drain developer tank.
2. Rinse thoroughly with 80 to 100° F (27 to 38° C)
water using hose.
3. Fill tank with 80 to 100° F (27 to 38° C) water.
Recirculate for 5 minutes. Drain. Repeat.
4. Fill tank with working strength systems cleaner.
Recirculate systems cleaner 30 minutes. Drain andrinse thoroughly with 80 to 100° F (27 to 38° C) waterusing hose. Repeat.
5. Fill tank with 80 to 100° F (27 to 38° C) water.
Recirculate 5 minutes. Drain.
6. Fill with working strength neutralizer. Recirculate
neutralizer 30 minutes. Drain and rinse thoroughlywith 80 to 100° F (27 to 38° C) water using hose.
7. Remove rack to sink for separate cleaning.
8. Inspect bottom of tank for precipitates. Flush out any
debris.
9. In sink, use squirt bottle to apply Developer Systems
Cleaner to all rollers and rack surfaces. Scrub rollers
and rack surfaces with brushes or sponges to remove
silver. Rinse rack.
10. Use squirt bottle to apply neutralizer to all rollers andrack surfaces. Rinse rack.
11. Put rack back in tank.
12. Fill tank with 80 to 100° F (27 to 38° C) water.
Recirculate 5 minutes. Drain. Repeat.
13. Install new filter in developer. Fill tank with fresh
developer.

Reusing Solutions
The used solutions can be saved and reused several times
over a period of up to two weeks.
To maintain the efficiency of the solutions, small
amounts of concentrate can be added just before reuse.
As a starting point, add an amount of each concentrateequal to about 2% of the volume of the solution being
reused.
For each liter of Developer System Cleaner solution
being reused, add 20 ml of Cleaner, Part A concentrate and20ml Cleaner, Part B concentrate and stir. For each liter of
Neutralizer being reused, add 20 ml of Neutralizer
concentrate and stir.
If the cleaning action still appears slower than normal,
concentrate additions can be increased to 3 or 4%.
Some precipitate or sediment may settle out of the used
Developer System Cleaner solution during storage. When
preparing to reuse the cleaner, carefully pour the clear

KODAK Developer System Cleaner and Neutralizer • TI-2000

purple solution off the top into a second container before
proceeding, and discard the sediment remaining in thestorage container.
Do not reuse cleaner that has lost its characteristic
purple color, since this indicates the solution is completely
exhausted.

DISPOSAL
Discharge, treatment, or disposal of spent solutions may
be subject to local, state, or federal laws. Contact
appropriate authorities to determine the requirements that
apply to the use of this product.

Composition of the Solutions
Developer System Cleaner: Used Cleaner contains
potassium permanganate, manganese dioxide, and sulfuric
acid, and may contain a small amount of dissolved silver.
The solution pH is approximately 2. (The pH of thesolution may have to be raised prior to disposal.)
Neutralizer: Used Neutralizer contains sodium sulfite,
sodium bisulfite, and citric acid. The used solution may
also contain small amounts of manganese dioxide anddissolved silver.

Effluent Considerations
The used cleaner and Neutralizer may be added to thesame waste stream used for photographic developers,
fixers, and wash water if recommended procedures were
followed for the use of the product, including thoroughrinsing of the processor tanks and racks after cleaning.
If the Cleaner mixes with dilute developer, such as mightoccur from developer overflow in a drain, a small quantityof manganese dioxide can form as precipitate. Subsequent
use of the Neutralizer, or fixer overflow, will readily
dissolve this precipitate as it goes down the drain.

Warning
Do not allow used Cleaner to mix directly with used
Neutralizer or fixer (except as noted below under“Desilvering Solutions,” Step 5). Direct mixing can form
irritating sulfur dioxide fumes.
In normal use, any residual Cleaner in the processor
tanks, racks, and drain is well diluted with rinse water
before the addition of the Neutralizer, minimizing thepossiblity of creating sulfur dioxide fumes. Follow proper
procedures for the use and disposal of the solutions.

5KODAK Developer System Cleaner and Neutralizer

Desilvering Exhausted Solutions
The level of silver in the used Cleaner solution is generally
much lower than that found in used fixers. The Neutralizer
generally contains even less silver than the Cleaner.
If necessary, a silver recovery cartridge can be used toremove silver from the Neutralizer. However, the use of asilver recovery cartridge is not recommended to remove
silver from the Cleaner, since the low pH of the solution will
greatly reduce the capacity of the cartridge. If local sewer
codes require reduction in the silver content of the Cleaner
effluent, check with local authorities for approval of theprocedure outlined below.
1. Collect the used Cleaner, and add a solution of
sodium chloride (table salt is acceptable) to yield 2grams of salt per liter (7.5 g / gallon) in the combined
mixture. Stir the salt solution thoroughly into the used
Cleaner.
2. Let the mixture stand for a few hours to settle a small
amount of precipitate containing manganese dioxideand most of the silver that was in the solution. The
silver will be in the form of silver chloride.
3. Depending on local requirements, the clear liquid
above the precipitate may have to be tested to verify
that the silver level is low enough to allow discharge.
4. Separate as much of the used Cleaner liquid from theprecipitate as possible. (Removing 90 to 95% of theliquid is sufficient.) If the removed liquid complies
with local sewer codes, it can be discharged to thewaste stream.
5. Add the remaining volume of solution that contains
the precipitate to at least a 10 times greater volume ofused Neutralizer or exhausted fixer. The precipitate,including the silver chloride, will dissolve.
6. Treat this solution in a silver recovery cartridge toremove the silver.
Note: If you have questions or need assistance, contact
your local Kodak representative.
Note: The contents of this publication are subject tochange without notice.

Kodak, Photo-Flo, Versamat, Dektomatic, Polymax, Prostar, Kodamatic,
X-0mat, and Industrex are trademarks.

Revised 3-10

KODAK Developer System Cleaner and
Neutralizer
KODAK Publication No. TI-2000

Film & Photofinishing Systems GroupEASTMAN KODAK COMPANY • ROCHESTER, NY 14650