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EC number: 273-227-8
CAS number: 68953-84-4
The boiling point could not be determined as the Differential Scanning Calorimetry experiment showed that the substance decomposed before the boiling point was reached.
During the manufacture of DAPD, the chemical is heat-stripped to remove
the more volatile starting materials remaining as residues in the
product. The temperature for this process exceeds 325 degrees C while a
vacuum is created in the stripper to pressure levels below 2 psi. Under
these extreme conditions, the product is melted without indication for
boiling. These process conditions correspond to a corrected temperature
of more than 415 °C at atmospheric pressure according to recalculation
using a nomogram. As shown in the Differential Scanning Calorimetry
experiment, the substance decomposes at 350°C. As a consequence, it is
not possible to define an exact boiling point for DAPD.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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