2-Hexyne
[CAS# 764-35-2]

Identification

• Classification: Chemical reagent >> Organic reagent >> Alkyne
• Name: 2-Hexyne
• Synonyms: 1-Methyl-2-propylacetylene; Methyl(propyl)acetylene
• Molecular Formula: C₆H₁₀
• Molecular Weight: 82.14
• CAS Registry Number: 764-35-2
• EC Number: 212-117-6

Properties

• Solubility: Very slightly soluble (0.3 g/L) (25 ºC), Calc.^*
• Density: 0.7493 g/cm³ (0 ºC)^**
• Melting point: -89.6 ºC^***
• Boiling point: 84.5 ºC (760 Torr)^****
• Refractive index: 1.4545 (589.3 nm 20 ºC)^*****
• Flash point: -11.1±0.0 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** van Risseghem, H.; Bulletin des Societes Chimiques Belges 1926, V35, P328-65.

^*** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^**** Ondruschka, Bernd; Chemische Berichte 1989, V122(4), P715-19.

^***** Andrac, Monique; Ann. Chim. (Paris) 1964, V9(5-6), P287-315.

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Flammable liquids	Flam. Liq.	2	H225
Aspiration hazard	Asp. Tox.	1	H304
Eye irritation	Eye Irrit.	2	H319
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335