Is MOA-23 (AEO-23) harmful to humans? Does it have an impact on the environment?

Under normal use conditions, MOA-23 (AEO-23) is a substance of low to moderate irritation to humans, and is classified as low toxicity and low hazard to the environment. However, standardized operation and proper disposal are still required.

Detailed Description

MOA-23 (AEO-23, Laureth-23) is a nonionic fatty alcohol polyoxyethylene ether surfactant with a high degree of polymerization. According to its GHS hazard classification, this product falls under Skin corrosion\/irritation Category 2 and Serious eye damage\/eye irritation Category 2A, with the signal word "Warning." This means that upon direct contact, it may cause skin irritation (H315) and serious eye irritation (H319), but its hazard level is moderate to low, and it is not a highly toxic or corrosive substance. The acute oral toxicity LD50 in rats is greater than 2000 mg\/kg, indicating low acute oral toxicity.

From an ecological perspective, MOA-23 exhibits low toxicity to aquatic organisms: the acute fish toxicity LC50 is greater than 10-100 mg\/L, and the water hazard class is WGK 1 (slightly hazardous to water). The product itself has good biodegradability, and its impact on the ecological environment is controllable when used in accordance with specifications. However, direct discharge of untreated product into water bodies, drainage systems, or onto the ground should be avoided to prevent cumulative effects on the aquatic environment.

In normal industrial and household chemical applications, MOA-23 is widely used in fields such as textile printing and dyeing, industrial cleaning, household detergents, cosmetics, and personal care products. When used according to established formulations and operating procedures, the concentration in the final product is typically significantly diluted, resulting in a low actual risk to human health and the environment. The product batches produced by Guoli Chemical Co., Ltd. have stable quality and comply with relevant safety and environmental standards.

Summary of Health and Ecological Parameters

Application Recommendations

MOA-23, as a nonionic surfactant, is widely used in various industries. Its safety under normal usage scenarios has been well verified:

• Cosmetics and Personal Care Products: When used as an O\/W emulsifier and solubilizer, the dosage in formulations is typically in the range of 1%-5%. The final product is gentle on the human body and suitable for skin contact products.
• Industrial Cleaning and Textile Auxiliaries: Protective measures should be taken during high-concentration operations, but terminal industrial waste liquids should be treated to meet standards before discharge to reduce environmental load.
• Household Detergents: In finished products such as laundry liquids and powders, the content has been diluted to a safe range, and normal use will not cause significant skin or eye irritation.
• Emulsion Polymerization: When used as an emulsifier in polymerization systems, the residual amount in the final product is extremely low, and the risk is negligible.

Precautions

• Must wear chemically resistant gloves (e.g., nitrile rubber) and protective goggles\/face shield during operation (Precautionary statement P280).
• If in eyes: Rinse immediately with plenty of water for at least 15 minutes, remove contact lenses if present and continue rinsing; if irritation persists, seek medical attention immediately (P305+P351+P338).
• Wash hands and exposed skin thoroughly after handling (P264).
• Recommended storage temperature: 5°C to 40°C, keep tightly sealed in a cool, dry, and well-ventilated place, away from strong oxidizing agents.
• Avoid direct discharge of untreated waste liquid into sewers or natural water bodies; dispose of waste in accordance with local\/national regulations.
• During high-temperature seasons, the product may soften, which is a normal physical phenomenon and does not affect quality or safety.

Data source: Safety Data Sheet and product technical information for MOA-23 (AEO-23) from Hai'an Guoli Chemical Co., Ltd.