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Span™ 65

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.
Scientist creating health care formulation at Croda
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Product details

Pharmacopoeia compliance

  • FDA-IIG 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
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