The usage method of dodecylamine polyoxyethylene ether AC-1205 should be adjusted according to the specific application field. It is usually directly added into the formulation system and stirred to disperse. The recommended dosage is 1%~10% of the total formulation.
Detailed Description
Dodecylamine polyoxyethylene ether AC-1205 (CAS No.: 26635-75-6) is a nonionic surfactant prepared by ethoxylation reaction using dodecylamine as the initiator, exhibiting cationic character in acidic medium. This product is a colorless to light yellow transparent liquid with active content ≥99%, easily soluble in water and various organic solvents. It has excellent emulsifying, dispersing, wetting and antistatic properties, with an HLB value of about 10.8 and a cloud point ≥60°C. Due to its good fluidity at room temperature, it can be directly used without heating or pre-dissolution. In most formulation systems, simply add AC-1205 slowly into the main solution under stirring conditions, and continue stirring for 10~15 minutes to achieve full dispersion. If the formulation needs to activate its cationic properties under acidic conditions (e.g., as a fiber antistatic agent or conditioner), adjust the system pH to 4.5~6.0 with acetic acid or citric acid. At this point, the protonated amine group will significantly enhance the adsorption affinity to negatively charged surfaces.
In specific applications, as a pesticide emulsifier, it is recommended to first mix AC-1205 with the technical material and solvent to form an oil phase, then emulsify with the water phase under high shear. Dosage is usually 3%~8% of the total formulation; as a textile leveling agent, recommended dosage is 0.5%~2% of the dye bath, used together with dyes in the same bath to effectively prevent color spots and improve migration; in daily chemicals such as shampoo and body wash, recommended dosage is 1%~3% of the total formulation, can be compounded with anionic surfactants to provide thickening and conditioning effects; as an industrial cleaning agent component, recommended dosage is 5%~10% of the concentrate, combined with alkaline additives to significantly enhance degreasing and detergency.
Technical Parameters
| Parameter Item | Typical Value | Parameter Item | Typical Value |
|---|
| Appearance (25°C) | Colorless to light yellow transparent liquid | Active Content | ≥99% |
| Ionic Type | Nonionic (cationic in acidic medium) | HLB Value | 10.8 |
| Cloud Point (1% aqueous solution) | ≥60°C | pH (1% aqueous solution) | 6.0~8.0 |
| Amine Value | 126~135 mg KOH/g | Hydroxyl Value | 135~145 mg KOH/g |
| Density (25°C) | Approx. 0.99 g/cm³ | Viscosity (25°C) | Approx. 150 mm²/s |
| Surface Tension (cmc, 25°C) | Approx. 29 mN/m | Critical Micelle Concentration | Approx. 0.1 mmol/L |
| Moisture Content | ≤0.5% | Flash Point | >150°C |
| Solubility | Easily soluble in water and organic solvents | Foam Characteristics | Low foaming |
Application Suggestions
AC-1205, with its unique multifunctional properties, can be widely used in various industrial fields. Below are the recommended usage methods for each area:
- Pesticide Formulations: Used as primary or auxiliary emulsifier in emulsifiable concentrates, oil-in-water emulsions, and dispersible oil suspensions. Recommended dosage: 2%~6% for EC system, 3%~8% for EW. Mix the product with crude oil and solvent to form an oil phase, then add the oil phase into the water phase under high shear at 1000~3000 rpm to obtain an emulsion with uniform particle size and long-term stability.
- Textile Dyeing and Finishing: Used as a high-temperature leveling agent and antistatic agent. Recommended dosage: 0.5%~2% (based on fabric weight) in the dye bath, 2%~5% in pretreatment agents. It can stably provide leveling effect at dyeing temperatures of 60~130°C. Adding 0.5%~1% during the soaping step after dyeing can effectively remove floating color.
- Daily Chemicals: Acts as a conditioner and thickener in shampoos, conditioners, and body washes. Recommended dosage: 1%~3%. It is recommended to add the product after the main surfactants are fully dissolved, at a temperature of 40~50°C, and stir evenly. When compounded with thickeners such as Carbomer, this product can significantly enhance the thickening response of the system.
- Industrial Cleaning Agents: Used as an emulsifying and penetrating component in vehicle cleaners and heavy-duty degreasers. Recommended dosage: 5%~10% in concentrate, 0.5%~2% in working solution. Can be compounded with alkaline additives such as sodium hydroxide and sodium metasilicate to achieve optimal degreasing effect at use temperatures of 50~70°C.
- Metalworking Fluids: Exerts lubricating and dispersing effects in water-based cutting fluids and grinding fluids. Recommended dosage: 3%~8% in concentrate, 0.3%~1% in working solution. Preferably added at the early stage of preparation and fully circulated and stirred evenly.
- Pigment Dispersion: Used for pre-dispersion of pigments in water-based coatings and color pastes. Recommended dosage: 5%~15% of pigment weight. First dissolve the product in water, then add pigment and grind to disperse, which can significantly reduce viscosity and increase tinting strength.
- Crude Oil Demulsification: Used as a component of demulsifier for oilfield gathering and transportation. Recommended injection concentration: 50~200 ppm (based on crude oil), injection temperature: 40~70°C. Combined with electric field dehydration process, optimal oil-water separation efficiency can be achieved.
Precautions
- Personal Protection: Must wear chemical safety goggles and nitrile rubber gloves, and protective clothing during operation. The product may cause skin irritation (H315) and serious eye irritation (H319). In case of skin contact, wash immediately with plenty of water and soap for at least 15 minutes. In case of eye contact, rinse immediately and seek medical attention.
- Storage Conditions: Store in a cool and dry warehouse at +5°C to +35°C, protected from light and sealed. Use stainless steel, polyethylene or lined containers. After opening, seal promptly to prevent moisture absorption. The storage area should be equipped with spill containment trays and eyewash stations.
- Usage Prohibitions: Avoid contact with incompatible substances such as strong oxidizers, strong acids, and strong bases. Although the product has a low flammability (flash point >150°C), it should still be kept away from heat sources and open flames. Ensure good ventilation at the operation site.
- Wastewater Treatment: This product is not readily biodegradable in aquatic environments (H412). Wash wastewater containing this product must be collected and treated. It is strictly prohibited to discharge directly into sewers or surface waters. Dispose of waste products as hazardous waste through specialized agencies.
- Acid Activation: If its cationic properties are needed, adjust the pH to a weakly acidic range with organic acids. However, the pH should not be lower than 3 to avoid damaging the structural stability of the product.
