Solvents
REACH
Dibutyl carbonate
CAS Number
542-52-9
EC Number
208-816-0
What is Dibutyl carbonate?
Dibutyl carbonate (CAS 542-52-9), also known as n-butyl carbonate, is a carbonate ester solvent used in polymer processing and industrial lubrication.
Where is Dibutyl carbonate used?
- Plastics and polymer manufacturing: plasticizer improving flexibility and processability in resin formulations, particularly coatings and films
- Polycarbonate synthesis: reactive solvent and intermediate
- Lubricant formulations: base fluid blending and additive carrier where controlled viscosity and thermal stability are required
- Specialty coatings: evaluated as a green solvent alternative, reducing reliance on more regulated solvent systems
- It functions as both a solvent and a plasticizer with low volatility and good compatibility with resin systems.
Commercial specifications
- Purity levels of 99% and above are standard for polymer and solvent-grade applications
- Clear liquid in drums and IBC containers
Other Names (Synonyms)
n-Butyl carbonate|Carbonic acid, dibutyl ester|Dibuthyl carbonate|62WFZ7P7QB|di-n-butylcarbonate
What are the physical properties of Dibutyl carbonate?
Melting Point <25 °C
Boiling Point 207 °C
Density 0.9237 g/cm³ @ Temp: 20 °C
Appearance liquid
Color Colorless to Almost colorless
Form clear liquid
Refractive Index nD20 1.4117
How is Dibutyl carbonate classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant
Hazard Statements
H315 Causes skin irritation
H317 May cause an allergic skin reaction
H318 Causes serious eye damage
H412 Harmful to aquatic life with long lasting effects
Precautionary Statements
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
Which trade and regulatory codes apply to Dibutyl carbonate?
HS Code 2920.90.5100