Question

How to use octadecylamine polyoxyethylene ether AC-1830? What is the recommended addition amount?

Answer
2026-06-06 官方文档 十八胺聚氧乙烯醚AC-1830

Octadecylamine polyoxyethylene ether AC-1830 is easy to use. The recommended addition amount varies by application field, typically 0.5%~5% of the total formula weight, and the specific amount needs to be determined through experiments.

Detailed Description

Octadecylamine polyoxyethylene ether AC-1830 (AC-1830) is a nonionic (weak cationic) surfactant. At room temperature, it appears as a light yellow to yellow paste, easily soluble in water and organic solvents. When using, it can be directly added to the aqueous phase system, stirred or slightly heated (about 30-40°C) to accelerate dissolution and dispersion; or it can be pre-dissolved in a small amount of warm water before being added to the main formula. Due to its dual nonionic and weak cationic characteristics, it has excellent compatibility with anionic, cationic, and nonionic auxiliaries, making it highly compatible in various industrial formulations. During preparation, it is recommended to first dissolve AC-1830 in the aqueous phase or mix it evenly with other surfactants in the formula, then add the oil phase or the target medium to be treated. This ensures thorough dispersion and optimal emulsification, wetting, or corrosion inhibition performance. Its low-foaming characteristics make it particularly suitable for processes requiring fast defoaming or easy rinsing. is particularly suitable for process scenarios requiring rapid defoaming or easy rinsing.

Application Recommendations

Recommended addition amounts for different fields (based on industry general references, final dosage needs experimental verification):

  • Textile Printing and Dyeing (Leveling Agent): Recommended dosage is 1~3 g/L of the dye bath, adjusted according to dye type, fiber type, and process conditions.
  • Pesticide Formulations (Emulsifier): Recommended dosage is 2%~5% of the total formulation weight, can be compounded with anionic emulsifiers to improve emulsion stability.
  • Metalworking Fluids (Corrosion Inhibitor/Lubricant): Recommended dosage is 0.5%~2% of the total working fluid weight, as a rust prevention or lubrication enhancing component.
  • Personal Care Products (Softener/Antistatic Agent): Recommended dosage is 0.5%~3% of the total product weight, can be used synergistically with other cationic conditioners.
  • Industrial Cleaning (Degreasing/Surfactant): Recommended dosage is 1%~5% of the total cleaning solution weight, suitable for heavy oil degreasing and hard surface cleaning formulations.

Technical Parameters

ItemSpecification
Appearance (25°C)Light yellow to yellow paste
Ionic TypeNonionic (weak cationic)
Active Content≥99%
HLB Value16~17
Amine Value35~45 mg KOH/g
pH Value (1% aqueous solution)6.0~8.0
Cloud Point (1% aqueous solution)>100°C
Foam CharacteristicsLow foam
Freezing PointAbout 20~30°C

Precautions

  • The product has a freezing point of about 20~30°C. It may be solid at low temperatures, which is a normal physical phenomenon. Heat it in a water bath until it becomes fluid before use; this does not affect performance.
  • The high HLB value (16~17) indicates excellent water dispersibility, suitable for O/W systems.
  • Prolonged contact with acids or strong oxidizers may affect stability. Compatibility tests are recommended before compounding.
  • All dosage recommendations are general starting ranges for the industry. The specific formulation needs to be optimized and stability verified based on the actual system.