Is octadecyl polyoxyethylene ether AC-1820 harmful to the human body? Does it have an impact on the environment?

Octadecyl polyoxyethylene ether AC-1820 is irritating to the skin and eyes, and is harmful to aquatic organisms. Improper handling may harm human health and the environment.

Impact on Human Health

According to the classification under the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), octadecyl polyoxyethylene ether AC-1820 is clearly classified as a skin irritant (Category 2, H315) and a serious eye irritant (Category 2, H319). This means that if the product comes into direct contact with the skin, it may cause irritation reactions such as redness and itching; if splashed into the eyes, it may cause severe eye damage and discomfort. The product packaging should be labeled with the GHS07 (exclamation mark) pictogram and use the signal word "Warning." It is particularly noteworthy that although this product is typically considered a non-ionic surfactant, in an acidic environment, its molecules will be protonated, exhibiting cationic properties. This characteristic may enhance its adsorption and irritation to human skin and mucous membranes, so extra caution is required when used in acidic systems.

Impact on the Environment

Octadecyl polyoxyethylene ether AC-1820 is classified as acutely toxic to the aquatic environment (Category 3, H402), meaning it is harmful to aquatic organisms. The long-chain alkyl group (octadecyl chain) in its chemical molecular structure gives it a certain bioaccumulation potential. If directly discharged into water bodies, it may have long-term harmful effects on aquatic organisms such as fish and plankton. Therefore, this product and its waste must not be directly discharged into rivers, lakes, sewers, or soil without treatment. During production, use, and disposal, local environmental regulations must be followed, and waste must be treated as chemical waste by qualified professional organizations.

Safe Handling and Protection Recommendations

To ensure personal and environmental safety, the following protective measures must be strictly observed when handling octadecyl polyoxyethylene ether AC-1820:

• Engineering Controls: The work area must be well-ventilated, and local exhaust ventilation should be used if necessary to avoid inhalation of vapors or aerosols.
• Personal Protective Equipment: Wear certified chemical protective gloves (e.g., nitrile rubber), safety goggles or face shield, and appropriate protective clothing during operation to ensure skin and eyes do not come into direct contact with the product.
• Operation Discipline: No eating, drinking, or smoking is allowed during operation. After operation, immediately remove contaminated clothing and thoroughly wash hands and any exposed skin.
• Spill and Waste Disposal: In case of spillage, cover with inert absorbent materials (e.g., dry sand, vermiculite) and collect. Do not flush into surface water or drainage systems. Waste products should be incinerated in licensed incinerators per regulations or handed over to qualified waste disposal companies.

Emergency Treatment Points

• Skin Contact: Immediately remove contaminated clothing and rinse with plenty of running water and soap for at least 15 minutes. If irritation persists, seek medical attention.
• Eye Contact: Gently rinse inside the eyelids with plenty of water or saline solution for at least 15 minutes, lifting the upper and lower eyelids periodically. Seek immediate professional medical help.
• Ingestion: Rinse mouth carefully, do not induce vomiting, and immediately call a poison control center or seek medical attention.

For more detailed toxicological and ecological data, please refer to the Safety Data Sheet (SDS) provided by Haian Guoli Chemical Co., Ltd.