Industrial Chemicals
Span 40
Span 40 is a biodegradable surfactant based on a natural fatty acid (palmatic acid) & sugar alcohol sorbitol. This sorbitan ester is highly effective at forming oil in water emulsions, particularly when used with its polyethoxylated derivative, Tween 40.
Chemical Description
Sorbitan ester
Functions
- Antifoam & Defoamer
- Emulsifier
- Surfactant
Applications
- Automotive
- Bitumen & Construction
- Chemicals Manufacture
- Emulsification
- Nonwovens
Regional Availability
- Asia
- Europe
- Latin America
- N America
Main Specifications
| Property | Units | Value |
|---|---|---|
| Acid value | mgKOH/g | 5.75 |
| Saponification value | mgKOH/g | 147.5 |
| Hydroxyl value | mgKOH/g | 290 |
| Atlas set point | ||
| Classification | ||
| Colour | ||
| Form | Powder | |
| HLB value | 6.7 | |
| Rel.density | at 25°C | |
| Water | %m/m | 0.75 |
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