Description
CAS 9005-66-7
Tween 40 Quick Details
Chemical Name: Tween 40
CAS No.: 9005-66-7
Chemical structure: 
MF: C22H42O6.(C2H4O)n
Synonyms: Polyoxyethylene sorbitan monopalmitate; polysorbate 40
Appearance: Light yellow paste
Tween 40 Typical Properties
| ITEM | STANDARD |
| Acid Value | 2.0 KOH mg/g Max. |
| Saponification value | 41-52 KOH mg/g |
| Hydroxyl value | 89-105 KOH mg/g |
| Moisture | 3.0% Max |
| HLB Value | 16.7 |
What is Tween ?
Tween is a kind of synthetic nonionic emulsifier. One type of emulsifier was first developed by ICI Company of the United States. Tween is the trade name of ICI company for this kind of emulsifier, and it is different according to the use in the synthesis process. Fatty acid types are given different numbers to form complete trade names such as Tween 60 and Tween 80. Tween 40 scientific name polyoxyethylene sorbitan monopalmitate, amber oily liquid, oil / water emulsifier, used as stabilizer, solubilizer, diffusing agent, antistatic agent, fiber lubricant and so on. 2. It is prepared by condensation of sorbitan monopalmitate with ethylene oxide.
Tween 40 Application
1. This product is used as an emulsifier, solubilizer, stabilizer, diffuser and fiber lubricant.
2. For O/W type food emulsifier, use alone or in combination with Span-60, Span-65, Span-80.
3. Used as stabilizer, wetting agent, diffusing agent, antistatic agent, etc.
Tween 40 Packaging and Shipping
200kg/Drum
Tween 40 Storage
This product should be stored in a cool, ventilated, dry place to avoid sun and rain.