Sorbitan tristearate
CAS 26658-19-5
EC 247-891-4
Formula C60H114O8
MW 963.54 g/mol
Surfactants Food & NutritionPharmaceuticals & HealthcarePersonal Care & CosmeticsPlastics & Polymers Emulsification & DispersionRheology ModificationAntioxidant & Stabilizer
Description
Sorbitan tristearate (CAS 26658-19-5) is a non-ionic sorbitan ester surfactant derived from sorbitol and stearic acid. It is commercially available under trade names including Span 65, Arlacel 65, and Armotan TS. No E-number designation applies to this ingredient.
In food and confectionery manufacturing, sorbitan tristearate controls fat crystal polymorphism in chocolate coatings, slowing bloom formation by stabilising the beta-prime crystal structure. In personal care formulations, it functions as a water-in-oil emulsifier with an HLB of approximately 2.1, providing structured emulsion systems in creams and sticks. Polymer processors use it as an internal antistatic and dispersing agent.
Sorbitan tristearate is supplied as solid beads and is available in food-grade and technical-grade specifications. The substance is registered under REACH (EC 247-891-4) and is classified under HS code 3824 99 93. Procurement teams should confirm grade suitability against FCC or Ph.Eur. monographs for regulated applications.
In food and confectionery manufacturing, sorbitan tristearate controls fat crystal polymorphism in chocolate coatings, slowing bloom formation by stabilising the beta-prime crystal structure. In personal care formulations, it functions as a water-in-oil emulsifier with an HLB of approximately 2.1, providing structured emulsion systems in creams and sticks. Polymer processors use it as an internal antistatic and dispersing agent.
Sorbitan tristearate is supplied as solid beads and is available in food-grade and technical-grade specifications. The substance is registered under REACH (EC 247-891-4) and is classified under HS code 3824 99 93. Procurement teams should confirm grade suitability against FCC or Ph.Eur. monographs for regulated applications.
Physical Properties
| Melting Point | 53 °C |
| Boiling Point | >100°C (1013 hPa) |
| Density | 0.98 g/cm3 (25℃) |
| Flash Point | 150 °C |
| Appearance | Beads |
| Color | White to off-white |
| Form | Solid |
| Vapor Pressure | <1.4 hPa (20 °C) |
| Log P | 23.959 (est) |
Trade & Regulatory
| HS Code | 3824 99 93 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
Span 65Armotan TSArlacel 65SPAN(R) 65Glycomul TSEmsorb 2507SPAN(TM) 65
Related Products
Raw Materials
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