Registration Dossier
Registration Dossier
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EC number: 203-743-0 | CAS number: 110-17-8
Endpoint summary
Administrative data
Description of key information
The physical and chemical properties of fumaric acid have been determined experimentally and published in a number of standard reference handbooks. Fumaric acid is a colourless solid in the form of needles, monoclinic prisms or leaflets from water. The melting point of fumaric acid is 287 °C using the closed capillary, rapid heating method and fumaric acid sublimes at 200 °C. At 1.7 mm of pressure, fumaric acid sublimates at 165 °C. Fumaric acid has a density of 1.635 at 20 °C, a vapour pressure of 1.54E–04 mm Hg at 25 °C, a partition coefficient of –4.02, and the water solubility is 7 g/L at 25 °C. The heat of combustion of fumaric acid was reported as –4970 btu/lb = 2760 cal/g = –116 x 105 J/kg. The K1 dissociation constant of fumaric acid is 9.3E–04 at 25 °C and the K2 dissociation constant is 2.9E–05. The auto-ignition temperature of fumaric acid was specified to be 399 °C. The median particle size L50 of the test items deduced from the particle distributions is 87.6 µm.
Fumaric acid is not classified as "highly flammable" (i.e. a non-flammable solid). Fumaric acid is not classified as being flammable to contact with water and is regarded as not being pyrophoric.
Waivers have been submitted for the flash point, oxidising properties, and viscosity, as these studies are not technically feasible with fumaric acid. Waivers for explosivity testing, surface tension and stability in organic solvents have also been submitted based on lack of scientific relevance.
Additional information
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