​The BIO-SOFTN25 series is a line of high active nonionic surfactants. The BIO-SOFTN25 series products are stable in both aqueous acidic and alkaline solutions, allowing for application in a wide range of products. The alcohol ethoxylates containing between one and five moles of ethoxylation are primarily useful in oil-based systems.

BIO-SOFT® EC-639 is part of the BIO-SOFT EC series, offering stability in both acidic and alkaline solutions. This nonionic surfactant, prepared by ethoxylating fatty alcohol, provides moderate, stable foam and high detergency. It's suitable for various applications, including laundry products and hard surface cleaners, and is effective at low concentrations in warm and hot water.