Polysorbate 20
time:2012-10-26 16:33:24,count:0

Polysorbate 20
Alias
Polyethylene glycol sorbitan monolaurate
PEG Sorbitan laurate
Polysorbate 21
Sorbimacrogol laurate
Sorbitan, monododecanoate, poly(oxy-1,2-ethanediyl) derivs.
Tween 20
Tween 21
Polyoxyethylene sorbitan monolaurate
Category
Non-ionic surfactants-Polyether
CAS No.
9005-64-5
Structural Formula
Properties
Appearance: colorless to yellow-brown liquid or solid.
Solubility: slightly soluble to soluble in water.
Stability: stable. at strong acid, strong alkali, easily hydrolyzed.
Risk: irritation, irritation to skin, eye.
Animal toxicity[1]: rat oral LD50: 36.7mL/Kg; mouse oral LD50: >33000mg/Kg.
Ecology: may be hazardous to environment. Water body should be given special attention.
Biodegradability: biodegradable.
Characteristics: excellent solubilizing, dispersing, emulsifying, antistatic, lubricating abilities.
Synthesis
 
Quality standards & test methods
item
physical and chemical indexes
test methods
Actives*, %, ≥
98
 
pH (25℃, 1%)
5.0-7.0
 
*: should be marked on molecular weight.
Major Uses
Use as emulsifying agent, dispersing agent.
Conditioning agent, emollient, emulsifying agent in personal care products.
Use as solubilizing agent.
Lubricant in plastics, fibers, metal processing.
Emulsifying agent in food industry.
Antistatic agent in fiber, textile, leather.
Product members
PEG-4 Sorbitan laurate
PEG-10 Sorbitan laurate
PEG-40 Sorbitan laurate
PEG-44 Sorbitan laurate
PEG-75 Sorbitan laurate
PEG-80 Sorbitan laurate
Manufacturers
 
References
[1]:http://toxnet.nlm.nih.gov/:9005-64-5
Update: 20131002(1);

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