Formalex GREEN Formalin Neutralizer

(Liquid Neutralizer for Sink Disposal)

Formalex Green Formalin Liquid Neutralizer

Liquid formalin neutralizer that easily and safely neutralizes formalin waste to a non-hazardous, non-toxic solution for sink disposal. The improved formula eliminates any sludgy residue and does not require any pH adjustment. It contains no phosphates and is non-vapor forming. Use spray bottle for easy clean up of small countertop or bench spills!

  • No Sludgy Residue
  • Contains No Phosphates
  • No pH Adjustment Required
  • Used in Labs for Over 29 Years!

(Ships Ground Only)

Product Options:

Liquid Neutralizer for Formalin Waste:
Part # ABFX-011 gal cube $32.00
Part # ABFX-2502.5 gal cube $68.00
Part # ABFX-055 gal cube $119.00
Part # ABFX-3030 gal drum $630.00
Part # ABFX-5555 gal drum $979.00


  1 Gallon Cube 2.5 Gallon Cube 5 Gallon Cube 30 Gallon Drum 55 Gallon Drum
Formalex® “GREEN” Formalin Neutralizer Part ABFX-01 Part ABFX-250 Part ABFX-05 Part ABFX-30 Part ABFX-55

Additionally Needed:                                              

Formalex® Green Waste Collection Container, 1 Gallon Part ABFXG-1
Formalex® Green Waste Collection Container, 2.5 Gallon Part ABFXG-25
Funnel with Tissue Screen Part ABFX-FUN
Formalex® Green Graduated Dispenser, 32 Ounce Part ABFXG-GD
Formalex® Green pH Test Strips (100 strips/pack) Part ABFXG-PH
Formalex® Green Empty Spray Bottle Part ABFX-32E

For storage requirements and expiration date refer to individual product labels.



Newcomer Supply Formalex® “GREEN” Formalin Neutralizer is a multi-component, aqueous formulation which utilizes an organo-nitrogen based chemistry.  This organo-nitrogen chemistry effectively neutralizes Formalin waste products by chemically reacting with the formaldehyde to yield non-hazardous, pH neutral, water soluble compounds that can be safely discharged to sewer and waste water treatment systems.

32 ounces of Formalex® “GREEN” will neutralize one gallon of 10% formalin or one gallon of 4% glutaraldehyde.

Benefits include:

  • No pH adjustment of solutions is required.
  • Does not contain phosphates.
  • Non-vapor forming.
  • Formalin or glutaraldehyde can be neutralized in 4 hours to non-hazardous disposable solutions.
  • Neutralized aldehyde products can be safely discharged to sewer and waste water treatment systems.
  • No sludgy residue.


Formalex® “GREEN” recommended accessories to assist and complete the neutralization process.

  • 1 Gallon or 2.5 Gallon Waste Collection Container
  • Funnel with Tissue Screen
  • 32 Ounce Graduated Dispenser
  • pH Test Strips



  1. Collect acceptable concentrations of aldehyde waste in designated and well labeled Formalex® Green Waste Collection Container, 1 Gallon or 2.5 Gallon (ABFXG-1, ABFXG-25).
    1. See Procedure Notes #1 and #2.
    2. Use of Funnel with Tissue Screen (ABFX-FUN) is recommended to avoid any extraneous tissue debris from accumulating in aldehyde waste solutions.
  2. Add 32 fluid ounces of Formalex® “GREEN” to each gallon (128 fluid ounces) of aldehyde waste. Or add 1 liter of Formalex® “GREEN” to 4 liters of aldehyde waste.
    1. Use Formalex® Green 32 Ounce Graduated Dispenser (ABFXG-GD) for convenient measuring.
    2. Refer to Page 2 for treatment calculation tables.
  3. Securely tighten lid on collection container; agitate container to thoroughly mix solutions.
    1. Do not add any additional solutions to collection container once neutralization process has started.
  4. Allow mixed solution to stand for a minimum of 4 hours.
    1. See Procedure Note #3.
  5. Prior to re-opening, re-agitate container to thoroughly re-mix solution to decrease exposure to any potential headspace vapor.
  6. Test treated solution with Formalex® Green pH Test Strips (ABFXG-PH) to determine completion of neutralization reaction.
    1. Reaction is complete with a pH reading at or above 5.5.
  1. Pour neutralized non-hazardous aldehyde waste product into sanitary sewer.
  2. Rinse collection container and clean with cold tap water before reuse.
  3. Use Formalex® Green Spray Bottle (ABFX-32E) to neutralize small formalin spills and accompanying formalin odors.



  1. 10% formalin (4% formaldehyde) and 4% glutaraldehyde are the highest concentrations that can be neutralized.
    1. Formalex® “GREEN” should never be used to directly treat concentrated 37% formaldehyde for sanitary sewer disposal.
  2. Maintain separate, well labeled collection containers for waste formalin and waste glutaraldehyde solutions for best neutralization results.
  3. To attain the lowest formalin residual, allow treated solutions to stand overnight or approximately 8-12 hours.
  4. Confirm disposal methods with local and state environmental regulations. Refer to SDS for personal protective measures and handling information.



  1. Bancroft, John D., and Marilyn Gamble. Theory and Practice of Histological Techniques. 6th ed. Oxford: Churchill Livingstone Elsevier, 2008. 22-23, 27.
  2. Dapson, Janet Crookham, and Richard W. Dapson. Hazardous Materials in the Histopathology Laboratory: Regulations, Risks, Handling and Disposal. 4th ed. Battle Creek, MI: Anatech, 2005. 181-186.
  3. Modifications developed by Newcomer Supply Laboratory.


Calculating out how much Formalex Green that you need:

Caution Statement and Special Notes:
  1. Always wear chemical resistant gloves and eye protection when handling chemicals.
  2. Follow all institutional and personnel safety guidelines when handling formalin solutions.
  3. Read Formalex® Green Material Safety Data Sheet prior to use.
  4. Formalex® Green should NEVER be used to treat 37% formaldehyde for sewer disposal.
  5. Do not mix with chlorine type bleaches.
  6. Follow all local, state and federal laws and regulations regarding formalin solutions.