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Description of key information

Based on the flash point and structure considerations and practical experiences, it is concluded that hexamethyl tetralin is non-flammable.

Key value for chemical safety assessment

non flammable

Additional information

Justification for classification or non-classification

The flash point of hexamethyl tetralin (HMT) is >100°C, which is above the upper limit of 60°C set in the classification and labelling criteria of the CLP regulation.

HMT does not contain any chemical group that might lead to spontaneous ignition a short time after coming into contact with air, damp air or water at room temperature (circa 20°C). Furthermore, no metals, transition metals, boron or silicon are present.

Based on structural considerations (absence of structural alerts) and practical experience over decades, it can be concluded that HMT is incapable of developing a dangerous amount of (flammable) gas in contact with air, damp air or water.