Sorbitan sesquioleate Chemical Properties

Density 

0.989 g/mL at 25 °C(lit.)

vapor pressure 

0.81 psi ( 20 °C)

refractive index 

n20/D 1.478(lit.)

Flash point:

113 °C

solubility 

Dispersible in water, soluble in fatty oils, slightly soluble in ethanol.

pka

13.11[at 20 ℃]

form 

Viscous Liquid

color 

Pale Yellow

Water Solubility 

Insoluble in cold water, hot water. soluble in mineral oil and ethyl acetate.

InChIKey

SPFRYHCSFBFNTR-RKGWDQTMSA-N

LogP

7.698 (est)

EPA Substance Registry System

Sorbitan sesquioleate (8007-43-0)

Safety Information

Safety Statements 

23-24/25

WGK Germany 

1

RTECS 

WG2934330

TSCA 

Yes

HS Code 

3822.19.0080

MSDS

• Language:English Provider:SigmaAldrich

Sorbitan sesquioleate Usage And Synthesis

Chemical Properties

Pale yellow or slightly brownish-yellow paste, which becomes a viscous, oily, brownish-yellow liquid at about 25 °C.

Uses

Lonzest(R) SOC is a low HLB, w/o emulsifier suggested for use in cosmetic formulations and household products. Also used in emulsifying explosives.

Uses

Sorbitan sesquioleate is used as an emulsifier in cosmetic and pharmaceutical ointments and creams.

Uses

sorbitan sesquioleate is a surfactant used as an emulsifying agent.

Definition

Sorbitan sesquioleate (SSO) is a water-in-oil emulsifier that allows oil and water to blend into a homogeneous mixture that does not separate. It is widely used in cosmetics such as moisturizers, cleansers, conditioners, eye makeup removers, exfoliating products, sunscreens, and baby products. Closely related emulsifiers such as Span 20 (sorbitan monolaurate), Span 40 (sorbitan monopalmitate), span 60 (sorbitan monostearate), span 65 (sorbitan tristearate), span 80 (sorbitan monooleate), and Span 85 (sorbitan trioleate) can cross-react with SSO. They, therefore, should be avoided in patients sensitive to SSO.

brand name

Arlacel 83 (ICI Americas); Arlacel C (ICI Americas).

Flammability and Explosibility

Non flammable

Contact allergens

Sorbitan sesquioleate is a mixture of mono and diesters of oleic acid and extol anhydrides derived from sorbitol. It is used as a surfactant and an emulsifier in cosmetics. It acts sometimes as a contact allergen, particularly in leg ulcer patients. It is also responsible for false-positive patch test reactions to haptens, with which some allergen providers emulgated, such as parabens mix, fragrance mix, Amerchol L101, and ethylene-urea /melamine formaldehyde.

Safety

Sorbitan Sesquioleate is considered a low hazard ingredient by the Cosmetics Database, which only notes mild concerns regarding organ system and toxicity, due to animal studies that showed organ effects and skin moderation at moderate doses.

Sorbitan sesquioleate (8007-43-0)Related Product Information

• Hydantoin
• Tween 85
• Tween 80
• polysorbate 40
• SORBITAN TRIOLEATE
• Polysorbate 20
• Tween 60
• TWEEN 65
• Span 20
• Span 60
• SORBITAN TRISTEARATE
• Span 80
• Sorbitan monopalmitate
• Sorbitan sesquioleate
• Sorbitol
• ISOSTEARIC ACID
• ISOSTEARIC ACID
• SORBITAN SESQUIOLEATE 10G [R]