Question

How to use MOA-12 (AEO-12)? What is the recommended dosage?

Answer
2026-06-06 官方文档 MOA-12(AEO-12)

The dosage of MOA-12 (AEO-12) varies depending on the specific application field. It is usually recommended to disperse and use it under stirring in the aqueous phase. The reference dosage range is 1% to 20%, and the optimal ratio should be verified through small-scale experiments.

Detailed Description

MOA-12 (AEO-12) is a nonionic surfactant with a high HLB value (approximately 14.5). It appears as a white to slightly yellow paste or waxy solid (melting point 15~20°C). With a cloud point as high as 90~95°C, it maintains good solubility and surface activity even in high-temperature processes. Before use, ensure the material is uniform. If solidification or stratification occurs due to low temperature, place the packaging drum in a 25~40°C warm water bath to slowly heat it. After complete melting or restoration of fluidity, stir evenly before use, which does not affect product performance.

This product is a high-concentration (effective content ≥99%) item, typically used as the core surfactant component in formulations. The most common addition method is to directly add it into the aqueous phase under stirring, utilizing its easy water solubility for rapid dispersion and dissolution. It can also be compounded with other anionic, nonionic, or amphoteric surfactants to achieve synergistic effects. Given its low critical micelle concentration (CMC) of 0.09 mmol\/L, which means micelles can form at very low concentrations, significant wetting, emulsification, and detergency effects can be achieved with a small dosage in practical applications.

Since the Guoli Chemical database does not have fixed standard dosage data for each scenario, the following recommended dosages are reference ranges based on the product's HLB value, CMC, and industry common formulation practices. Before formal production, it is strongly recommended to optimize and determine the specific dosage best suited for your system through laboratory small-scale experiments, combined with target cleaning power, emulsifying stability, or wetting speed.

Recommended Dosage by Application Field

Application Field Recommended Dosage (based on total formula weight) Usage Method and Function
Textile Printing and Dyeing Auxiliaries (Scouring Agent\/Detergent) 5% – 15% Compounded with anionic surfactants (e.g., sulfonates) and used in high-temperature baths at 60~95°C, providing excellent penetration, emulsification, and detergency to effectively remove waxes, pectin, and floating colors from fibers.
Industrial and Household Liquid Detergents (Laundry Liquid\/Dishwashing Liquid) 1% – 10% Compounded with nonionics (AEO-9, AEO-7) and anionics (AES, LAS), enhancing emulsification and removal of stubborn oily stains, while providing moderate foam control ability.
Leather Degreasing Agent 2% – 8% Added during the soaking or degreasing process, gently emulsifying and removing natural animal fats inside and outside the leather hide, improving leather softness and dye uniformity.
Pesticide Emulsifier 5% – 20% As an emulsifying and dispersing component in the oil phase (technical material + solvent), allowing the pesticide emulsifiable concentrate to automatically form a stable oil-in-water emulsion upon contact with water, improving the wetting and spreading ability of the spray liquid on plant leaves.
Cosmetic Emulsifier and Solubilizer 0.5% – 5% Used in makeup removers, transparent lotions, or cream formulations to assist in solubilizing fragrances, essential oils, or oil-soluble active ingredients, helping to form stable and fine emulsions and improve skin feel during application.
Metal Hard Surface Cleaner 3% – 12% Combined with alkaline additives and chelating agents, effectively removing mineral oils, cutting fluids, and rust preventive oils from metal part surfaces at room temperature or under heating, with extremely low corrosiveness to the metal substrate.

Application Recommendations

  • Compounding Synergy: MOA-12 is nonionic, chemically stable, and has good compatibility with anionic, cationic, and other nonionic surfactants. In formulations requiring high detergency, compounding with anionic surfactants (e.g., LAS, AES) can produce significant synergistic detergency effects.
  • Temperature Control: Although the cloud point of MOA-12 is as high as 90~95°C, making it suitable for high-temperature textile scouring processes, appropriate heating (30~40°C) during dissolution in room-temperature cleaning formulations can accelerate the dissolution and mixing process.
  • Foam Characteristics: This product has moderate foaming. In industrial cleaning fields requiring low foam or foam control, it is recommended to be used in combination with defoamers or low-foam nonionic surfactants (e.g., EO\/PO block copolyethers).
  • pH Adaptability: It remains stable in both acidic and alkaline media and can be used over a wide pH range of 5 to 12 without hydrolysis causing failure.

Precautions

  • This product is slightly hygroscopic. After use, ensure the packaging is sealed and stored in a cool, dry place.
  • When preparing high-concentration aqueous solutions, it is recommended to slowly add MOA-12 to a measured amount of water under stirring to avoid local gelation and encapsulation from one-time addition, which affects the dissolution rate.
  • Although it is non-irritating to the skin, based on good industrial hygiene practices, it is still recommended to wear protective gloves and safety goggles during extended operation to prevent mild irritation from splash into the eyes.
  • All dosages are recommended reference values. The actual optimal dosage must be ultimately determined through small-scale experiments based on your specific formulation system, raw water hardness, and target performance requirements.