Chemical Structure

Chemical Name: Fatty alcohol polyoxyethylene ether (AEO-9).
Molecular Weight: The molecular weight varies with the carbon chain length of the starting fatty alcohol and the exact number of ethoxylation units but typically ranges between 300 and 500.

Physical Properties

Appearance: AEO-9 is usually a colorless to pale yellow liquid or paste.
Solubility: It is highly soluble in water and can mix with various organic solvents, such as ethanol and acetone.
Cloud Point: As a non-ionic surfactant, AEO-9 forms a cloudy appearance in aqueous solutions at a certain concentration. This temperature is known as the cloud point, which varies with the fatty alcohol chain length and the number of ethoxylation units.

Chemical Properties

Stability: AEO-9 is chemically stable at room temperature but may decompose under high temperatures or in acidic or alkaline conditions.
Reactivity: It can react with acids and bases, forming corresponding hydrolysis or esterification products.
Biodegradability: It has good biodegradability, making it an environmentally friendly chemical substance.

Application-related Chemical Characteristics

Surface Activity: It significantly reduces the surface and interfacial tension of liquids, promoting emulsification, dispersion, and wetting.
Emulsifying Properties: It can effectively emulsify immiscible substances such as oil and water, widely used in the production of emulsifiers and detergents.
Wetting and Penetration Properties: It enhances the wetting and penetration capabilities of materials, beneficial for the performance of detergents and softeners.

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