1,3-butadiene
CAS Number
106-99-0
EC Number
203-450-8
Abbreviation
BD
What is 1,3-butadiene?
1,3-Butadiene (CAS 106-99-0), commonly abbreviated as BD, is a gaseous diene monomer; the primary building block for synthetic rubber and polymer systems. Also known as divinyl.
Where is 1,3-butadiene used?
- Synthetic rubber: principal monomer for polybutadiene rubber (PBR) and styrene-butadiene rubber (SBR)
- Tires, conveyor belts and mechanical seals from PBR and SBR
- Plastics: copolymerized with acrylonitrile and styrene to produce ABS resin
- Automotive components, electronics housings and consumer goods from ABS
- Nitrile rubber (NBR) for fuel-resistant hoses, gaskets and industrial gloves
- Styrene-butadiene latex serves as a binder in paper coatings and carpet backing adhesives.
Good to know: Polymerization grade requires strict purity thresholds to prevent inhibitor interference in downstream processes.
Commercial specifications
- Delivered in cylinders or bulk pressurized tankers
Other Names (Synonyms)
erythrene|divinyl|bivinyl|alpha,gamma-butadiene|butadiene|buta-1,3-diene|Butadieen|BD
What are the physical properties of 1,3-butadiene?
Melting Point -108.966 °C
Boiling Point -4.5 °C @ Press: 760 Torr
Density 0.6149 g/cm³ @ Temp: 25 °C
Flash Point −105 °F
Appearance colourless gas, or pressurised liquid (odour TLV 1.6 ppm)
Color Colorless to Almost colorless
Form Colorless gas
Water Solubility 735mg/L(25 ºC)
Vapor Pressure 1863 mm Hg ( 21 °C)
Refractive Index 1.4292
Log P 1.99 at 20℃
How is 1,3-butadiene classified and handled safely? Learn More
Danger
GHS02· Flammable GHS04· Compressed Gas GHS08· Health Hazard GHS07· Irritant
Hazard Statements
H220 Extremely flammable gas
H280 Contains gas under pressure; may explode if heated
H319 Causes serious eye irritation
H335 May cause respiratory irritation
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.
P222 Do not allow contact with air.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
Which trade and regulatory codes apply to 1,3-butadiene?
HS Code 29012410
UN Number 1010
ADR Class 2.1
Storage Class 2A - Gases
WGK (Germany) 2