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Undecane

CAS Number
1120-21-4
EC Number
214-300-6
Chemical Formula
C11H24
Molecular Weight
156.31 g/mol

Description

Undecane (CAS 1120-21-4 ), also known as hendecane, is a straight-chain alkane hydrocarbon used as a solvent and carrier fluid across industrial processing applications. It functions as a low-polarity diluent and reference standard in hydrocarbon blending. The material offers controlled evaporation behavior relevant to formulation and process design. In lubricant and metalworking fluid formulations, it serves as a hydrocarbon carrier for additive packages where a defined solvent is required. Petroleum and gas laboratories use it as a certified reference component for GC calibration and hydrocarbon fingerprinting in crude oil and condensate analysis. It is essential for precise analytical measurements in these sectors. In polymer processing, it acts as a process solvent or diluent where a non-polar, mid-chain alkane is specified to control viscosity or carrier behavior. This ensures consistent performance during the manufacturing cycle. Specialty solvent blends for industrial cleaning and surface preparation also incorporate this alkane to achieve targeted evaporation profiles. It provides a reliable solution for demanding surface treatment requirements. The product is supplied as a clear, low-viscosity liquid in drum, IBC, and bulk quantities. It is available in high-purity research and analytical grades, typically 98–99%+ purity, for laboratory applications. Technical-grade material is also available for industrial solvent and blending use cases. Our supply chain ensures that the product meets rigorous industry expectations for consistency and performance in every batch. Contact us for supply of Undecane Request Quote

Other Names (Synonyms)

n-undecane | hendecane | JV0QT00NUE | RefChem:6337 | Nikko Elace

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-25.6 °C
Boiling Point195.9 °C @ Press: 760 Torr
Density0.7402 g/cm³ @ Temp: 20 °C
Flash Point140 °F
Appearancecolourless liquid
ColorColorless
FormLiquid
Water SolubilityIMMISCIBLE
Vapor Pressure<0.4 mm Hg ( 20 °C)
Refractive Indexn 20/D 1.417(lit.)
Log P6.312 (est)

Safety & Handling

Danger
GHS08· Health HazardGHS02· FlammableGHS07· IrritantGHS09· Environment

Hazard Statements

H226Flammable liquid and vapor
H227Combustible liquid
H304May be fatal if swallowed and enters airways
H335May cause respiratory irritation

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P331Do NOT induce vomiting.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P316Get emergency medical help immediately.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P235Store in a well-ventilated place. Keep cool.
P353IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower.

Trade & Regulatory

HS Code29011090
UN Number2330
ADR Class3
Packing GroupIII
WGK (Germany)3