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HomeProduct name listDIBUTYL CARBONATE

DIBUTYL CARBONATE

  • CAS NO.:542-52-9
  • Empirical Formula: C9H18O3
  • Molecular Weight: 174.24
  • MDL number: MFCD00043938
  • EINECS: 208-816-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-05 08:26:49
DIBUTYL CARBONATE Structural

What is DIBUTYL CARBONATE?

Chemical properties

liquid

The Uses of DIBUTYL CARBONATE

Dibutyl Carbonate is a potential fuel substitute due to the observed decrease in CO2 emissions. Also used in CO2 catalytic activation.

Preparation

A 160 mL Parr autoclave was charged with butanol 982 (2.22 g, 0.03 mol), N-cyclohexyl-N',N',N'',N''-tetramethylguanidine (CyTMG; 6.9 g, 0.035 mol), and acetonitrile (30 mL). The autoclave was attached to a pressure head, and 160 psig CO2 was introduced with stirring at room temperature. An exothermic reaction ensued, leading to an increase in temperature to ca. 40℃. In a Fischer–Porter bottle was placed a solution of 1-chlorobutane (8.33 g, 0.09 mol) in acetonitrile (10 mL). This bottle was attached to a pressure head, and 80 psig CO2 was introduced above the solution. After 1 h, the solution of 1-chlorobutane was added in one portion under 80 psig CO2 to the pre-formed carbonate anion solution generated in the autoclave. After the addition, the pressure was increased to 160 psig with CO2, and the reaction mixture was warmed to 85 ℃ for 16 h. Thereafter, the reaction mixture was allowed to cool to room temperature, and then the pressure was released. An aliquot was removed, diluted with diethyl ether, and CyTMGH+Cl- was filtered off; by GC analysis using biphenyl as an internal standard, the yield of dibutyl carbonate was calculated as 73%; oil.

Flammability and Explosibility

Not classified

Properties of DIBUTYL CARBONATE

Melting point: <25 °C
Boiling point: bp 206.6°
Density  d420 0.9251; d425 0.9388
refractive index  nD20 1.4117
storage temp.  2-8°C
form  clear liquid
color  Colorless to Almost colorless
EPA Substance Registry System Carbonic acid, dibutyl ester (542-52-9)

Safety information for DIBUTYL CARBONATE

Computed Descriptors for DIBUTYL CARBONATE

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