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EC number: 945-149-0 | CAS number: -
Auto flammability
Administrative data
Link to relevant study record(s)
Description of key information
The autoflammability is 275°C based on read across from Terpineol alpha, the rationale is presented below.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 275 °C
Additional information
Auto-flammability of Terpene Hydrocarbon Alcohols using read across from alpha Terpineol.
Introduction
Terpene hydrocarbon alcohols have the followingconstituent types of substances: Solely hydrocarbons-terpene type, Alcohol-type, Ketone-type and Ether-type all having a saturated or unsaturated cyclic hydrocarbon backbone.There is no experimental auto-flammability information available. According to REACH Annex XI 1.5, information can be generated by other means, i.e. applying alternative methods such as QSARs, grouping and read-across. The autoflammability information of alpha-Terpineol is used for read across.
Hypothesis: Terpenes hydrocarbon alcohols have the same auto-flammability as alpha-Terpineol.
Available information: Alpha-Terpineol is tested in an A15 (Rel. 1) test and has an experimental auto-flammability temperature of 275°C.
Target chemical and source chemical(s)
Chemical structures of the target chemical and the source chemical(s) are shown in the data matrix, including relevant physico-chemical properties.
Purity / Impurities
Not relevant.
Analogue justification
According to Annex XI 1.5 read across can be used to replace testing when the similarity can be based on a common backbone and a common functional group. When using read across the result derived should be applicable for C&L and/or risk assessment and it should be presented with adequate and reliable documentation, which is presented below.
Analogue selection: For Terpene hydrocarbon alcohols the substance alpha-Terpineol is selected as the major representative constituent and because auto-flammability information was readily available.
Structural similarities and differences: Alpha-Terpineol is an alcohol which represents the major part of the Terpene Hydrocarbon alcohols.
Physical chemical properties: For liquids the boiling point and flashpoint are the key features for flammability. Both these properties are similar for Terpene hydrocarbon alcohols and alpha-Terpineol: the boiling points are 207.8 and 218.9°C, respectively and flashpoints are 77 and 91°C, respectively. Based on these similarities for Terpenes Hydrocarbon Alcohols a similar auto-flammability as for alpha-Terpineol can be predicted and results in a value of 275°C.
Uncertainty of the predictions: There are no uncertainties other than those addressed above.
Conclusion on hazard
For Terpene hydrocarbon alcohols no experimental information is available for auto-flammability but for alpha-Terpineol, the major constituent, such information is available: 275°C, which can be used for read across.
Final conclusion: Terpene hydrocarbon alcohols have an auto-flammability of 275°C.
Data matrix: Terpene hydrocarbon alcohols’ characteristics and expected autoflammability supported with experimental data from alpha-Terpineol
Common names | Terpene hydrocarbon alcohols | Alpha-Terpineol (representative constituent) |
| Target | Source |
Chemical structures | Not applicable |
|
CAS no. | Not applicable | 95-55-5 |
Empirical formula | Not applicable | C10H18O |
EINECS | 945-149-0 | 202-680-6 |
REACH Registration | 2018 | 2013 |
Molecular weight | 136-154 | 154 |
Phys-Chem |
|
|
Physical state | Liquid | Liquid |
Boiling point (°C) | 207.8 | 218.9 |
Vapour pressure in Pa | 51.9 | 6.48 |
Flashpoint (°C) | 77 | 91 |
Viscosity mPa | 10.4 | 37.9 |
Auto-flammability (°C) | 275 (Read across) | 275 (A.15) |
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