BIO-TERGE AS-40 is an aqueous solution of sodium olefin sulfonate which is produced by the 

continuous sulfonation of alpha olefins via Stepan's falling film process. Stepan's process minimizes the formation of disulfonates thereby offering a consistent high quality product. 

Format:  Clear liquid.  Product is readily biodegradable.

Common Uses:  BIO-TERGE AS-40 is an ideal surfactant for a variety of detergent and personal care applications including hand soaps, shampoos, and bath products. It offers the formulator excellent viscosity and foam characteristics, as well as improved mildness over lauryl sulfates.  It is more stable than alcohol sulfates over a broad pH range. 

Manufacturer Safety Precautions:

• Normal safety precautions (i.e. the use of gloves and safety goggles) should be employed when handling Handling BIO-TERGE AS-40. Contact with the eyes and prolonged contact with the skin should be avoided.  Wash thoroughly after handling material. 
• It is recommended that BIO-TERGE AS-40 be stored in sealed containers and kept at temperatures above 45°F (7°C). Avoid overheating or freezing.  This material can gel and separate if exposed to cooler temperatures.  Heat it slowly with mild agitation to insure its homogeneity before use. 

Safety data according to the Cosmetic Ingredient Review Panel:

• Safe as used in rinse off products; safe up to 2% in leave ons.

CAS#: 68439-57-6