Solvents
REACH
Undecane
CAS Number
1120-21-4
EC Number
214-300-6
What is Undecane?
Undecane (CAS 1120-21-4), also known as hendecane, is a straight-chain alkane hydrocarbon used as a solvent and carrier fluid.
Where is Undecane used?
- Hydrocarbon blending: low-polarity diluent and reference standard
- Lubricant and metalworking fluids: hydrocarbon carrier for additive packages where a defined solvent is required
- Petroleum and gas laboratories: certified reference component for GC calibration and hydrocarbon fingerprinting in crude oil and condensate analysis
- Polymer processing: process solvent or diluent where a non-polar, mid-chain alkane is specified to control viscosity or carrier behavior
- Industrial cleaning and surface preparation: specialty solvent blends with targeted evaporation profiles
- It offers controlled evaporation behavior relevant to formulation and process design.
Commercial specifications
- Clear, low-viscosity liquid in drum, IBC, and bulk quantities
- High-purity research and analytical grades, typically 98–99%+ purity
- Technical grade for industrial solvent and blending use
Other Names (Synonyms)
n-undecane|hendecane|JV0QT00NUE|RefChem:6337|Nikko Elace
What are the physical properties of Undecane?
Melting Point -25.6 °C
Boiling Point 195.9 °C @ Press: 760 Torr
Density 0.7402 g/cm³ @ Temp: 20 °C
Flash Point 140 °F
Appearance colourless liquid
Color Colorless
Form Liquid
Water Solubility IMMISCIBLE
Vapor Pressure <0.4 mm Hg ( 20 °C)
Refractive Index n 20/D 1.417(lit.)
Log P 6.312 (est)
How is Undecane classified and handled safely? Learn More
Danger
GHS08· Health Hazard GHS02· Flammable GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H226 Flammable liquid and vapor
H227 Combustible liquid
H304 May be fatal if swallowed and enters airways
H335 May cause respiratory irritation
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Undecane?
HS Code 29011090
UN Number 2330
ADR Class 3
Packing Group III
WGK (Germany) 3