Octadecylamine polyoxyethylene ether AC-1820 has a unique pH-dependent ion conversion characteristic—it behaves as a nonionic surfactant under neutral and alkaline conditions, while the amine group is protonated in acidic media, exhibiting cationic surfactant behavior. Therefore, in applications such as acidic dye baths or acidic cleaning agents, the product delivers optimal leveling, emulsification, and substrate affinity. Operators should fully understand this property and adjust the system pH according to the target process to achieve the desired functional effect.
From a safety perspective, AC-1820 is classified by GHS as skin irritant (H315) and serious eye irritant (H319), and may cause long-term adverse effects to aquatic organisms (H402). This means that during routine operations, chemical protective gloves such as nitrile rubber, safety goggles or face shield, and protective clothing must be worn. The work area must be well-ventilated. Eating, drinking, or smoking is prohibited during operation. After operation, hands and exposed skin should be thoroughly washed immediately.
Regarding storage, the product should be kept in a cool, dry, well-ventilated dedicated warehouse, with containers sealed to prevent moisture absorption or foreign matter contamination. It should be stored separately from incompatible substances such as strong oxidizers and strong acids. In emergency situations, skin contact requires rinsing with running water and soap for at least 15 minutes; eye contact requires continuous rinsing with plenty of water or saline for at least 15 minutes and immediate medical attention; in case of spillage, collect with inert absorbent materials such as dry sand or vermiculite, and do not flush into sewers or soil.
| Item | Content |
|---|---|
| GHS Classification — Skin | Category 2 (H315: Causes skin irritation) |
| GHS Classification — Eyes | Category 2 (H319: Causes serious eye irritation) |
| GHS Classification — Aquatic Environment | Category 3 (H402: Harmful to aquatic organisms) |
| Signal Word | Warning |
| Pictogram | GHS07 (Exclamation mark) |
| Recommended Glove Material | Certified chemical protective gloves such as nitrile rubber |
| Skin Contact Rinse Time | At least 15 minutes |
| Eye Contact Rinse Time | At least 15 minutes, seek medical attention immediately |
| Storage Temperature Conditions | Cool, dry, ventilated, avoid direct sunlight and high temperature |
| Incompatible Substances | Strong oxidizers, strong acids |
Textile Dyeing and Printing Field: When used as a leveling agent for acid dyes, it is recommended to use it in an acidic dye bath, leveraging its cationic properties to control the dye uptake rate and prevent uneven dyeing. Suitable for wool, nylon, and their blended fabrics. The specific dosage should be determined through trials based on the dyeing process and equipment conditions.
Agrochemical Field: Used as a high-efficiency emulsifier in pesticide emulsifiable concentrates, emulsion concentrates, and micro-emulsion formulations, it can improve the wetting and spreading performance of the spray liquid on plant leaf surfaces. It is recommended to optimize the addition ratio through formulation experiments.
Industrial Cleaning and Metalworking: In acidic cleaning agents, it provides both emulsifying and corrosion inhibition functions, forming a protective film on metal surfaces. When used as a corrosion inhibitor in metalworking fluids, it can simultaneously offer lubrication and anti-rust effects.
Other Applications: When used as an antistatic agent for synthetic materials, a mineral flotation collector, or a bitumen emulsifier, small-scale tests should be conducted based on specific substrate and process conditions to determine the optimal addition amount.