Registration Dossier
Registration Dossier
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EC number: 946-638-1 | CAS number: -
Endpoint summary
Administrative data
Description of key information
The substance belongs to a group of Natural Complex Substances (NCS) : UVCB sub-type 3, where the source is biological and the process is refinement (See ECHA Guidance on Identification and naming of substances under REACH); such as: exudates, resinoids and concretes that are well-known to be very difficult to analytically assess. These complex UVCB substances contain a large number of constituents with different volatility and solubility (mostly low solubility); the composition can be widely unknown and being (mostly) solid(ish) and/or extremely viscous resins their physical state leads to further difficulties for testing.
Considering the very complex nature of the test item (UVCB, about 30 -70% of constituents are unknown),physico-chemical properties of the registered substance were determined from experimental testing when possible. Some endpoints were waived, based on the experience in handling and use of the substance and on the chemical structure of the known constituents. We also considered waiving based on the technical issues due to the complex nature of such UVCB substance especially when the information obtained from testing was not relevant or of practical use and irrelevant for subsequent assessments.
The substance is a orange red wax substance with a freezing point below -20°C. It is expected to float over water, because of its low relative density (0.949). The measured vapour pressure exhibit high volatility (1923 Pa at 25°C).
The substance is classified as FLAMMABLE LIQUID, Category 3 based on Regulation (EC) 1272/2008 (CLP regulation).
Otherwise, no other hazard was identified with regard to physical properties (explosivity, oxidising properties, self-heating substance) based on Regulation (EC) 1272/2008 (CLP regulation)
Additional information
Summary of relevant physico-chemical properties obtained on thecomposition with the highest concentration of registered substance:
Endpoint |
Data |
Appearance (visual) |
orange-red wax, not mobile at 20°C and 1 atm. |
Freezing point (OECD 102/EU A1) |
Freezing point < -20°C |
Boiling point (OECD 103/EU A2) |
No boiling point was recorded (degradation of the substance from approximately 220°C) |
Relative density (OECD 109/EU A3, pycnometer) |
D20/4 = 0.9490 ± 0.0009 |
Vapour pressure (OECD 104/EU A4, static method) |
1923 Pa at 20°C and 2415 Pa at 25°C (interpolation). Note that the result obtained on this kind of substance should be largely influence by small amounts of volatile constituents and these values don't represent the major part of the substance. Therefore the result should be considered with caution when used for subsequent assessment (worst case). |
Log Kow (data waiving) |
Waived based on technical issue and poor knownledge of the composition of the substance. |
Water solubility (data waiving) |
Waived considering the very complex nature of the test item, the information obtained from testing is considered as not relevant or of practical use for subsequent assessments |
Surface tension (data waiving) |
Waived considering that surface activity is not the intended use of the substance (i.e. not a desired property). |
Auto-ignition temperature (EU A15) |
360°C +/- 10°C |
Flammability Flash-point (EU A9, ISO 2719 -B, non-equilibrium closed cup) Flammability air/water (data Waiving) Self-heating substances/mixtures (data waiving) |
33.8°C 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. The substance is classified as FLAMMABLE LIQUID, Category 3 based on Regulation (EC) 1272/2008 (CLP regulation) and UN Globally Harmonised System (GHS). Waived based on experience in handling 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 (DSC screening test) |
NO explosive properties are anticipated |
Oxidising properties (data waiving) |
Waived based on technical issue and chemical structure of known constituents. Low potential for oxidizing properties |
Particle size distribution (data waiving) |
Study scientifically not necessary (not granular powder) |
Slight variations are possible with composition (UVCB substance).
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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