Chloroprene
CAS Number
126-99-8
EC Number
204-818-0
Industries: Rubber & Elastomers
What is Chloroprene?
Chloroprene (CAS 126-99-8), also known as 2-chlorobutadiene, is the primary monomer used in the production of polychloroprene, a commercially significant synthetic elastomer.
Where is Chloroprene used?
- Neoprene rubber: polymerized into sheets, adhesives, foams and molded goods
- Automotive and construction: belts, hoses, seals and gaskets
- Adhesives: contact adhesives for bonding dissimilar substrates in footwear, furniture and panel assembly
- Wire and cable jacketing: flame-retardant characteristics for electrical installations
- Controlled polymerization yields a rubber with strong resistance to oils, weathering and flame.
Good to know: Handled under inhibited conditions to prevent premature polymerization during transit. Purity levels and inhibitor content are defined per buyer or process requirements.
Commercial specifications
- Bulk or isotank quantities
- Purity levels and inhibitor content defined per buyer or process requirements
Other Names (Synonyms)
beta-Chloroprene|2-chlorobutadiene|2-chloro-1,3-butadiene|2-Chlor-1,3-butadien|2-chlorobuta-1,3-diene|1,3-Butadiene, 2-chloro-
What are the physical properties of Chloroprene?
Melting Point -130 °C
Boiling Point 59.4 °C
Density 0.956 g/cm³ @ Temp: 20 °C
Flash Point 11 °C
Appearance Chloroprene is a colorless, flammable liquid possessing a pungent odor. The Odor Threshold is 0.4 milligram per cubic meter
Form Colorless liquid
Water Solubility 256mg/L at 20℃
Vapor Pressure 118 at 10 °C, 200 at 20 °C, 275 at 30 °C (quoted, Verschueren, 1983)
Refractive Index 1.4583
Log P 2.525 at 20℃
How is Chloroprene classified and handled safely? Learn More
Danger
GHS02· Flammable GHS07· Irritant GHS08· Health Hazard GHS06· Toxic GHS09· Environmental Hazard
Hazard Statements
H225 Highly Flammable liquid and vapor
H301 Toxic if swallowed
H302 Harmful if swallowed
H310 Fatal in contact with skin
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
Which trade and regulatory codes apply to Chloroprene?
Storage Class 3 - Flammable liquids
WGK (Germany) 3