POLYOXYETHYLENE (20) SORBITAN MONOLAURATE(TWEEN 20)
Polyoxyethylene sorbitan monolaurate usually called TW20 by us, and it is light yellow to yellow liquid, cas no.: 9005-64-5, E code is E432, soluble in water, ethanol, ethyl acetate and toluene, insoluble in mineral oils and vegetable oils. It has emulsifying, wetting and foaming properties. It belongs to O/W emulsifier and its HLB value is 16.7.
Polyoxyethylene sorbitan monolaurate is a class of nonionic surfactants with emulsification, diffusion, solubilization and stabilization.
1) It is widely used as emulsifier, dispersant, solubilizer, stabilizer and so on in pharmaceutical, daily chemical, food and textile industries. As a emulsifier, the high concentration of electrolyte and the change of pH value have little influence on its emulsifying ability.
2) It is a good class of oil / water type emulsifier. When preparing oil / water emulsifier, it is often used in combination with dehydrated ester, and the emulsion has better stability. By changing the type and amount of emulsifier used together, the water / oil type or oil / water type emulsion and cream with different texture and consistency can be produced.
3) Due to the good emulsification, dispersion and solubilization of various oils, such as mineral oil, vegetable oil and animal oil, this kind of excipient is mainly used in the manufacture of a variety of liquid preparations, such as perfume, mixture, lotion, emulsion, etc., and semisolid preparations (such as ointment, cream, suppository, etc.). Sterile and sterile preparations (such as eye drops, eye ointments, injections, etc.). When choosing this kind of excipients, we should pay special attention to safety in addition to the factors such as the stability of the preparations.
TW20 has the above functions and uses. It is determined by concentration, and generally uses 0.1 to 2%.
Plastic bucket or Iron bucket inner coating plastics, net weight is 25 kg, 180 kg, 200kg.
Storage and transportation:
Sealed and stored in the cool, dry and well-ventilated place, avoid to put inversion, Forbid to store and transport with materials that is explosive, combustible or deleterious. The shelf life is 12 months.