2,3-DICHLOROHEXAFLUORO-2-BUTENE Property

Melting point:

-67 °C

Boiling point:

66-68 °C(lit.)

Density 

1.605 g/mL at 25 °C(lit.)

vapor density 

8 (vs air)

vapor pressure 

4.42 psi ( 20 °C)

refractive index 

n20/D 1.3458(lit.)

CAS DataBase Reference

303-04-8(CAS DataBase Reference)

NIST Chemistry Reference

trans-2,3-Dichloro-1,1,1,4,4,4-hexafluoro-2-butene(303-04-8)

EPA Substance Registry System

2-Butene, 2,3-dichloro-1,1,1,4,4,4-hexafluoro- (303-04-8)

Safety

Hazard Codes 

T+,Xi,T,C

Risk Statements 

26-34

Safety Statements 

26-28-36/37/39-45

RIDADR 

UN 3389 6.1/PG 1

WGK Germany 

3

RTECS 

EM4910000

Hazard Note 

Irritant

HazardClass 

8

PackingGroup 

III

Toxicity

LC50 inhalation in dog: 182ppm/4H

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

H330Fatal if inhaled

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

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.

2,3-DICHLOROHEXAFLUORO-2-BUTENE Chemical Properties,Usage,Production

Chemical Properties

clear colorless liquid

General Description

The pure cis- and trans-isomers of 2,3-dichlorohexafluoro-2-butene were separated when 2,3-dichlorohexafluoro-2-butene (mixture of cis and trans) reacted with dry diglyme and sodium borohydride and was hydolyzed. The isomers were purified by preparative vapor phase chromatography technique.