Registration Dossier
Registration Dossier
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EC number: 266-037-1 | CAS number: 65997-01-5
Explosiveness
Administrative data
Link to relevant study record(s)
- Endpoint:
- explosive properties of explosives
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties
Reference
Description of key information
Explosiveness: Not explosive
Key value for chemical safety assessment
- Explosiveness:
- non explosive
Additional information
The assessment of explosive properties was conducted using non-experimental methodology. The potential explosive properties of a substance can be determined with acceptable reliability directly from the chemical structure of the substance. If the substance does not contain any groups associated with explosivity then a negative result is likely to be obtained. Chemical structures for the constituents of TOS were examined in this way.
Constituents of TOS are not expected to present any hazard associated with explosive properties based on experience in use and handling. This statement is supported by the lack of functional groups of concern in the constituents of TOS and an oxygen balance of –289 for oleic acid and –286 for linoleic acid, the two main parent fatty acid constituents, and –281 for abietic acid, a typical rosin acid structure present in TOS. These constituents were considered for OB assessment because fatty acids, rosin acids and water are the main constituents present in the substance.
The oxygen balance of major constituents of TOS was determined using the mathematical equation below:
CxHyOz + [x + (y/4)-(z/2)]. O2 → x CO2 + (y/2) H2O
Using the formula:
OB = -1600 [2x +(y/2) -z] / molecular weight
Where:
x = Number of carbon atoms
y = Number of hydrogen atoms
z = Number of oxygen atoms
(The number of nitrogen and other atoms present is neglected)
Based on the lack of functional groups of concern in the constituents of TOS and experience in use and handling, it can be predicted that testing for explosive properties would yield negative results; therefore, testing is not considered necessary for the registered substance.
In accordance with Column 2 of REACH Annex VII, the explosive properties study does not need to be conducted as there are no chemical groups associated with explosive properties present in the constituents of the substance.
Justification for classification or non-classification
There is no evidence to suggest that the substance should be classified for this endpoint.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
