2-benzyl-4-methyl-4a,5,6,7,8,8a-hexahydro-4H-benzo[d][1,3]dioxine

Endpoint summary

Description of key information

Physico-chemical properties were mostly determined from experimental testing, except Vapour Pressure and Water Solubility that were calculated from QSAR. Some endpoints were waived, based on chemical structure of the substance or on experience in handling and use of the substance.

The substance is a light yellow translucent liquid, visually lowly viscous at ambient temperature. Sligthly soluble in water with no expected surface active property, it has a density closely to that of water and a low volatility.

The substance is NOT classified as flammable liquid based on both Regulation (EC) 1272/2008 (CLP regulation) and GHS. No other hazard was identified with regard to physical properties (flammability,explosivity, oxidising properties, self-reactive, self-heating,organic peroxide) based on Regulation (EC) 1272/2008 (CLP regulation). 

Additional information

Summary of relevant physico-chemical properties:

Endpoint (method)	Data
Appearance (visual observation)	Registered substance is light yellow translucent liquid, visually lowly viscous at ambient temperature and atmospheric pressure
Melting point (EU A1 / DSC method)	-53.6 °C (219.55K)
Boiling point (EU A.2 / DSC method)	324.2°C (597.35K)
Relative density (OECD 109/EU A3, pycnometer method)	D20/4 = 1.049
Granulometry (data Waiving)	study scientifically not necessary (liquid)
Vapour pressure (QSAR approach)	0.295 Pa at 25°C
Log Kow (EU A8, Shake Flask method)	3.65 at 20°C
Water solubility (QSAR approach)	105 mg/L at 25°C
Surface tension (data Waiving)	Waived based on the structure of the test items. Besides the substance is not intended to be used as surfactant (i.e. not a desired property).
Auto-ignition temperature (EU A15, DIN14522 - Method S)	401°C.
Flash-point (EU A9 - Setaflash - equilibrium closed cup method)   Flammability on Ignition (data Waiving)   Flammability air (data Waiving)   Flammability  in contact with water (data Waiving)   Self-heating substances (data Waiving)	162°C. The substance is NOT classified as flammable liquid according to Regulation (EC) 1272/2008 (CLP regulation) and GHS.     Waived based on physical state (liquid). Flamm. solids study technically not feasible. Please refer to Flash Point for liquid.   Waived based on experience in handling and use and chemical structure of the substance. NOT flammable if contact with air.   Waived based on experience in handling, use and testing and on chemical structure of the substance. NOT flammable in contact with  water.   Waived based on physical state. Study scientifically not necessary as the substance is liquid. The surface of liquids is not large enough for reaction with air. Liquids, unless adsorbed, are not classified as self-heating. Moreover, the chemical structure does not contain metals/metalloids, which are typically self-heating substances.
Explosive properties (data Waiving)	Waived based on the chemical structure of the substance. NO potential for explosive properties
Oxidising properties (data Waiving)	Waived based on the chemical structure of the substance. NO potential for oxidizing properties.
Self-reactive substances (data Waiving)	Waived based on the absence of reactive groups in the chemical structure of the substance. NO potential for self-reactive properties.
Organic Peroxide (data Waiving)	Waived based on the absence of  structural alerts (absence of O-O bonds). NOT an organic peroxide.