Sulfated or Sulfonated castor oil is a castor oil that has been treated so that it is fully dispersible in water, thus making it perfect for bath oil products. It is also called Turkey Red Oil.

The traditional method of preparing turkey-red oil is to add concentrated sulfuric acid at a controlled rate to castor oil over a period of several hours with constant cooling and agitation of the reaction mass to maintain a temperature of 25-30oC. After acid addition is complete, the reaction mass is washed then neutralized with caustic soda or ammonia solution until the product is slightly alkaline.

Applications:

• Sulfated Castor Oil was the first synthetic detergent after ordinary soap.
• Being an anionic surfactant, it is an active wetting agent (active matter: 70%), and is widely used in dyeing and printing of cotton and dyeing of leather.
• Sulfonated castor oil is of medium viscosity and is usually used in bath oil formulations, and as a humectant in cosmetics.
• It is the only oil that will completely disperse in water. It is usually used in bath oils. It easily disperses in water and does not leave an oily ring around the tub.
• Sulfonated castor oil is also used in agriculture as organic manure, in paper industry for defoaming, and in cosmetics as emulsifier.

Chemical, Physical Properties and Specifications:

CAS Number	8002-33-3
Appearance	Brownish yellow oil
Sp.Gravity	0.98
Melting Point	< 0°C
Boiling Point	> 150°C
Chemical Character	Anionic
pH	7 ~ 8
Sulfonation Degree	Minimum 4.0
Solubility	Miscible in water giving milky emulsion