2-UNDECANOL Property

Melting point:

2-3 °C

Boiling point:

130-131 °C28 mm Hg(lit.)

Density 

0.828 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.437(lit.)

Flash point:

226 °F

storage temp. 

Refrigerator

solubility 

Chloroform (Sparingly), Ethyl Acetate (Slightly), Methanol (Sparingly)

form 

Oil

color 

Colourless

Odor

Fatty-oily-fruity odour with a relatively refreshing, almost citrusy note.

JECFA Number

297

Safety

Hazard Codes 

Xi,N

Risk Statements 

36/37/38-51/53

Safety Statements 

26-36-61

RIDADR 

UN 3082 9/PG 3

WGK Germany 

2

Hazard and Precautionary Statements (GHS)

2-UNDECANOL Chemical Properties,Usage,Production

Chemical Properties

Colorless liquid. Insoluble in water; soluble in alcohol and ether. Combustible.

Uses

2-Undecanol is a useful chemical reagent. It is reported that 2-Undecanol can be converted into aldehyde or ketone under mild conditions in the presence of a copper-based catalyst.

Uses

Antifoaming agent, intermediate, perfume fixatives, plasticizer.

Definition

ChEBI: Undecan-2-ol is a fatty alcohol that is undecane carrying a single hydroxy substituent at position 2. It has a role as a plant metabolite. It derives from a hydride of an undecane.

Application

2-Undecanol finds limited use in flavour compositions, often in imitation Coconut, sometimes traces in Rum or Brandy flavours. Its taste is more pleasant than its odour, the fatty notes apparently subdued, and the fruity, nutty, sweeter notes enhanced at concentrations around 10 ppm.

Production Methods

2-Undecanol is produced 1) by hydrogenation of Methyl nonyl ketone. 2) from Decanoic acid and Acetic acid by heating their vapours over Thorium oxide at about 450 ℃. The resulting ketone is subsequently hydrogenated to the alcohol.