5-HEXYN-3-OL Property

Melting point:

-34°C (estimate)

Boiling point:

73-76°C 60mm

Density 

0.886 g/mL at 25 °C

refractive index 

1.4430

Flash point:

21°C

storage temp. 

2-8°C

form 

clear liquid

pka

14.29±0.20(Predicted)

color 

Colorless to Light orange to Yellow

BRN 

1698904

EPA Substance Registry System

5-Hexyn-3-ol (19780-84-8)

Safety

Hazard Codes 

Xn

Risk Statements 

36/37/38-41-22-10

Safety Statements 

26-36/37/39-39

RIDADR 

1987

WGK Germany 

3

TSCA 

Yes

HazardClass 

3

PackingGroup 

III

HS Code 

29052900

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H302Harmful if swallowed

H318Causes serious eye damage

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

5-HEXYN-3-OL Chemical Properties,Usage,Production

Purification Methods

Purify the hexynol by fractionation in a vacuum. The carbamoyl derivative (prepared by reaction with COCl2/toluene followed by NH3) is crystallised by dissolving in the minimum volume of toluene and adding excess of pet ether (b 40-60o ) and has m 70-71o. [L.nger et al. Helv Chim Acta 42 2379 1959, Beilstein 1 IV 2235.]