Registration Dossier
Registration Dossier
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EC number: 217-691-1 | CAS number: 1931-62-0
Endpoint summary
Administrative data
Description of key information
OO-tert-butyl monoperoxymaleate is a white solid which can only be marketed together with a liquid phlegmatizer because of the substance's thermal instability. The marketed product has a self-accelerated decomposition temperature (SADT) of +55 °C and is classified as an organic peroxide Type C. Due to this thermal instability in combination with the substance's explosive properties, testing is disregarded for determination of the boiling point and the vapour pressure. However, the vapour pressure (0.147 Pa at 25 °C) is estimated by QSAR as a vapour pressure value is required for exposure calculations. Furthermore, testing for oxidizing properties does not need to be conducted for organic peroxides and flammability is an intrinsic hazard of this substance class. The self-ignition temperature does not need to be determined because the substance's thermal stability is quantitatively given by its SADT. The density of the product placed on the market is 1.23 g/cm³ at 20 °C. OO-tert-butyl monoperoxymaleate has a water solubility of 642 mg/L at 20 °C and the respective log Pow is 0.9.
Additional information
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.
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