Oils, Fats & Waxes
REACH
Ricinoleic acid
CAS Number
141-22-0
EC Number
205-470-2
What is Ricinoleic acid?
Ricinoleic acid (CAS 141-22-0), also known as ricinolic acid, is the principal fatty acid derived from castor oil, accounting for approximately 85–90% of its composition.
Where is Ricinoleic acid used?
- Lubricants and metalworking fluids: base component
- Coatings and adhesives: reactive plasticizer and adhesion promoter, particularly in polyurethane systems
- Textile and leather: fiber softening, fat liquoring agents, surface conditioning treatments that improve flexibility
- Personal care: emollient and emulsifier in lipstick bases, skin creams, and hair conditioners
- Its hydroxyl group enables direct polymer chain incorporation.
Commercial specifications
- Purity levels commonly range from 80% to 95%+ depending on the application
- Bulk liquid supply in drums and ISO tanks
Other Names (Synonyms)
ricinolic acid|12-OH 9c-18:1|(Z,R)-12-hydroxyoctadec-9-enoic acid|(cis,R)-12-hydroxyoctadec-9-enoic acid|12-hydroxyoleic acid|Ricinic acid|D-12-Hydroxyoleic acid|(9Z,12R)-12-hydroxyoctadec-9-enoic acid
What are the physical properties of Ricinoleic acid?
Melting Point 5.5 °C
Boiling Point 245 °C @ Press: 10 Torr
Density 0.940 g/cm³ @ Temp: 27.4 °C
Flash Point 248°C
Appearance yellow viscous liquid
Color Colorless to Red to Green
Form Liquid
Refractive Index 1.4740 (589.3 nm, 25℃)
Log P 5.607 (est)
How is Ricinoleic acid classified and handled safely? Learn More
Warning
GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
Which trade and regulatory codes apply to Ricinoleic acid?
HS Code 29181990
WGK (Germany) 3