Registration Dossier
Registration Dossier
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EC number: 202-496-6 | CAS number: 96-29-7
Endpoint summary
Administrative data
Description of key information
Additional information
MEKO is a clear colourless liquid with a melting point of -29.5 °C (Timmermans, 1921), a boiling point of > 152 °C at 101.3 kPa (Quitzsch et al., 1965) and a relative density of ca. 0.92 (CRC Handbook of Data on Organic Compounds, 1985). Its vapour pressure is 1.07 kPa at 20 °C (Wypych, 2008). The substance is very well soluble in water (100000 mg/L at 25 °C and pH 7) (Handbook of environmental data on organic chemicals, 1983), its octanol-water partition coefficient (log Kow) is 0.63 at 25 °C (EPIWIN Systpro Database, 1992); the dissociation constant (pKa) is 12.45 at 25 °C (King and Marion, 1944). The auto-ignition temperature of MEKO is 314-317 °C (Chilworth Technology Inc., 2010a), its dynamic viscosity is 15 mPa s at 20 °C (OECD, 2003). The substance is stable in common organic solvents (Copley et al., 1938).
Based on the flash point of 61.97 °C (Wypych, 2008), the substance does not need to be classified as flammable in accordance with EU Directive 67/548/EEC and EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008. The substance is not explosive (Chilworth Technology Inc., 2010b and c) and not oxidising (Chilworth Technology Inc., 2010d); therefore classification is not warranted in accordance with EU Directive 67/548/EEC and EU Classification, Labelling and Packaging of Substances and Mixtures (CLP) Regulation (EC) No. 1272/2008.
In accordance with Column 2 of REACH Annex VII, the conductance of the studies on surface tension and particle size distribution is not warranted.
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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