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tricarbon dioxide

tricarbon dioxide Structure
tricarbon dioxide
  • CAS No.504-64-3
  • Chemical Name:tricarbon dioxide
  • CBNumber:CB81268795
  • Molecular Formula:C3O2
  • Formula Weight:68.03
  • MOL File:504-64-3.mol
tricarbon dioxide Property
  • Melting point -111.3°
  • Boiling point bp760 6.8°
  • Density d40 1.114
  • refractive index n0D 1.45384; nD-12 1.46757
  • solubility reacts with H2O
  • form colorless gas
  • color colorless
  • Water Solubility forms malonic acid with H2O [MER06]
  • FDA UNII 9M2M4H5WEJ
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal word
  • Hazard statements
  • Precautionary statements

tricarbon dioxide Chemical Properties,Usage,Production

  • Chemical Properties colorless, highly refractive liquid or colorless gas, which burns with a blue sooty flame; odor like acrolein or mustard oil; structure: O=C=C=C=O [MER06]
  • Physical properties Colorless gas; strong, pungent odor; gas density 2.985 g/L; liquid density 1.114 g/mL at 0°C; refractive index 1.4538 (at 0°C); vapor pressure 588 torr at 0°C; liquefies at 6.8°C; freezes at -111.3°C; burns with a blue sooty flame; reacts with water. The compound is unstable, polymerizing on storage.
  • Uses preparation of malonates; improving dye affinity of fibers.
  • Definition ChEBI: Carbon suboxide is a carbon oxide and a member of allenes.
  • Preparation Carbon suboxide is prepared by dehydration of malonic acid with phosphorus pentoxide in vacuum at 140 to 150°C:
    CH2(COOH)2→ C3O2 + 2H2O
    Alternatively, the compound may be prepared by thermal dissociation of diacetyltartaric anhydride.
  • Hazard Carbon suboxide forms explosive mixtures in air. The lower and upper explosive limits are 6 to 30% by volume in air, respectively. The gas is a strong lacrimator and an irritant to eyes, nose and respiratory tract. Exposure to high concentations is dangerous. .
tricarbon dioxide Preparation Products And Raw materials
Raw materials
Preparation Products
tricarbon dioxide Suppliers
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tricarbon dioxide Spectrum
  • C3O2
  • OCCCO
  • 二氧化三碳
  • 次氧化碳
  • 504-64-3
  • 1,2-Propadiene-1,3-dione (9CI)
  • tricarbon dioxide
  • carbon suboxide
  • Propadiene-1,3-dione
  • 1,3-Dioxopropadiene
  • 1,3-Allenedione
  • 1,2-Propanediene-1,3-dione

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