Essential oil of Boswellia carterii (Burseraceae) obtained from gum by distillation

Endpoint summary

Description of key information

Physico-chemical properties of registered substance were determined from experimental testing,except water solubility, partition coefficient and vapour pressure that were derived from available data on constituents in a constituents approach. Some endpoints were waived, based on chemical structure of constituents or experience in handling and use of the substance.

The substance is a pale yellow liquid at ambient temperature.

It contains volatile constituents leading to a low flash point and the constituents are considered as insoluble to slightly soluble in water (0.000503 -1.41 mg/L). In water, it is less dense than water, so likely float.

It is not classified as hazardous with regard to some physical hazards (explosivity, oxidising properties, self-heating) and it is classified as a FLAMMABLE LIQUID CAT. 3 based on Regulation (EC) 1272/2008 (CLP regulation) and GHS criteria.

Additional information

Summary of relevant physico-chemical properties:

Endpoint (method)	Data
Appearance (visual)	Registered substance is a pale yellow organic liquid at 20 °C and 1 atm.
Freezing point (OECD 102/EU A1)	The freezing point of registered substance is stated as <-20°C
Boiling point (OECD 103/EU A2, Siwoloboff)	The boiling point of registered substance is stated as 182.3 ± 0.7 °C, corrected to standard pressure (101.325 kPa).
Relative density (OECD 109/EU A3, oscillating densimeter)	The relative density of the test item was measured as D20/20= 0,8676 ± 0,0010.
Granulometry	not applicable (liquid)
Vapour pressure (QSAR calculation - Kreatis)	The vapour pressure values   of 10 constituents of the substance (more than 80% of the composition) are in the range between 2.91 and 651 Pa at 25°C.
Log Kow (QSAR calculation - Kreatis)	The partition coefficient of 10 constituents of the substance (more than 80% of the composition) are in the range between 4.2 and 6.4 at 25°C
Water solubility (QSAR calculation - Kreatis Mixture approach)	The Water solubility   of 10 constituents of the substance (more than 80% of the composition) are in the range between 0.000503 mg test item/L and 1.41 mg test item/L at 25°C
Surface tension (OECD 115, /EU A5, plate method)	No potential for surface-active properties.
Auto-ignition temperature (EU A15)	Registered substance has been determined to have an auto-ignition temperature of 245 °C.
Flash-point (EU A9, ISO 2719 -B, non-equilibrium closed cup) Flammability (data waiving, based on chemical structure and experience in handling and use)  Self-heating (waiving, based on physical state)	The flash point of registered substance was determined to be 43.5°C  with a non-equilibrium closed cup flash point tester.  => Classified as FLAMMABLE LIQUID, Category 3 underRegulation (EC) 1272/2008 (CLP regulation) and UN Globally Harmonised System (GHS). Note that the result obtained on this kind of substance should be largely influence by small amounts of volatile constituents and the result doesn't represent the major part of the substance.   Waived based on experience in handling, testing and use and chemical structure of known constituents of the substance. NOT flammable if contact with air or water Waived based on physical state (liquid) NO self-heating substance anticipated.
Explosive properties (data waiving, based on chemical structure)	Waived based on chemical structure of the known constituents of the substance andexperience in handling and use of this type of substance. LOW potential for explosive properties
Oxidising properties (data waiving, based on chemical structure)	Waived based on chemical structure of known constituents of the substance. LOW potential for oxidizing properties.

Slight variations are possible with composition (UVCB substance).