Chemical composition
Type: Oil/Water Nonionic Surfactant
Ingredient: Polyoxyethylene (20) Sorbitol Fatty Acid Ester
Molecular formula: C₆H₈O[O(CH₂CH₂O)₂₀OH]-R 

Performance and Application
T-20 can be used as an oil-in-water emulsifier as a solvent, diffusion, stabilizer, lubricant and antistatic agent.
T-40 is used as an emulsifier, solubilizer, stabilizer, diffuser and fiber lubricant. 
T-60 as an emulsifier, dispersant, stabilizer, diffuser, soft 3 softener, antistatic agent, rust inhibitor, etc.
T-80 has excellent emulsification, dispersion, wetting and other properties.
T-85 is often used in combination with Span 85 as an emulsifier.

Solubility
T-20 is soluble in water, ethanol, methanol and ethyl acetate, insoluble in mineral oil and petroleum ether. 
T-40 is soluble in water, dilute acids, dilute alkalis and most organic solvents, insoluble in vegetable oils and mineral oils. 
T-60 can be dissolved in 40 °C warm water, sulfuric acid and dilute alkali and a variety of organic solvents, insoluble in oil, in the presence of some salts has dispersion ability. 
T-80 bitter taste, soluble in water, aniline, ethyl acetate and toluene, insoluble in mineral oil and vegetable oil. 
T-85 soluble in water, aniline, ethyl acetate and toluene, insoluble in mineral oil and vegetable oil.