Our Span range of sorbitan esters are widely used as W/O emulsifiers and when used in combination with ethoxylated sorbitan esters (the Tween range) they contribute to the overall stability of O/W emulsions. Manipulation of the Span/Tween ratio produces emulsifying systems of various HLB values, allowing the emulsification of a wide range of oils and waxes.
Span 65 is a W/O emulsifier particularly recommended for use with unsaturated lipid components such as oleyl alcohol or vegetable oils. Span 65 is also known to stabilise hard fat suppository bases and helps to inhibit blooming.
Product details
Pharmacopoeia compliance
- FDA-IID listed
Chemical group
- Sorbitan ester
Administration route
- Topical
Market application
- Dermatology
- Human pharmaceutical
- Veterinary health
Functions
- Emulsifier
- Nonionic surfactant
- Stability enhancer
- Suppository base
Physical form
- Off-white solid
HLB
- 2.10