How to use emulsifier A-105? What is the recommended addition amount?

The usage method of emulsifier A-105 varies depending on the application scenario. It is usually necessary to dilute it with water or the liquid phase in the formulation before adding to the system; there is no precise addition amount parameter for each field in the database, and the following are general industry experience reference values.

Detailed Description

Emulsifier A-105 (oleyl alcohol polyoxyethylene ether, HLB value 10.5) is a non-ionic surfactant, appearing as a colorless to light yellow transparent liquid, easily soluble in water, with a cloud point of 61~67°C. This product has good resistance to acid, alkali, and hard water, and can be used in combination with anionic, cationic, and other non-ionic surfactants. In practical operation, it is recommended to first mix this product evenly with the water phase or oil phase in the formulation, then add the other phase for emulsification to achieve the best emulsifying effect. If used in emulsion polymerization, it can be added during the monomer pre-emulsification stage; if used in cleaning or degreasing formulations, it should be compounded with other auxiliaries in proportion before use.

The selection of addition amount needs to consider factors such as the emulsification difficulty of the target system, oil-water ratio, required stability, and economy. The general principle is: the greater the emulsification difficulty and the higher the oil phase ratio, the larger the required addition amount. However, excessive use may lead to excessive foam or increased costs. It is recommended to conduct small-scale experiments before formal use to determine the optimal dosage for a specific formulation.

Technical Parameters

Application Suggestions

Based on general industry experience, the reference addition amounts for various application fields are as follows (these are empirical reference values, not fixed parameters from the Guoli Chemical database):

• Pesticide emulsifier: 3%~10% of the total formulation mass, depending on the type of active ingredient and formulation (emulsifiable concentrate, aqueous emulsion, microemulsion)
• Textile leveling agent/scouring agent: Add 0.5~2 g/L in the working solution, and can be appropriately increased to 1~5 g/L in pretreatment scouring processes
• Industrial hard surface cleaner: 1%~8% in the formulation, can be increased to 5%~10% for heavy grease cleaning
• Leather degreasing agent: Working solution concentration of 0.5%~3%, adjusted according to the fat content of the raw hide
• Metalworking fluid: 5%~20% in the concentrate formulation, with an effective concentration of approximately 0.1%~1% after dilution in the working solution
• Emulsion polymerization: 1%~4% based on monomer mass, used to control latex particle size and emulsion stability

The above data are general industry reference ranges. The actual optimal dosage should be determined through laboratory small-scale experiments. It is recommended to start testing from a small addition amount and gradually optimize to achieve target performance.

Precautions

• Eye protection: This product can cause severe irritation and even corneal damage to the eyes. Chemical safety goggles must be worn during operation.
• Skin contact: It has slight irritation, and it is recommended to wear impermeable gloves.
• Ventilation requirements: Use in a well-ventilated area and avoid inhaling vapor or mist.
• Environmental control: This product is toxic to aquatic organisms (fish LC₅₀ 1-10 mg/L) and has a slow biodegradation rate. Do not discharge directly into water bodies.
• Storage temperature: It is recommended not to exceed 40°C, keep away from heat sources and open flames, and keep the container sealed.
• Incompatibility: Avoid mixing and storing with strong oxidizers, strong acids, and strong bases. It is recommended to conduct compatibility tests before compounding.