Registration Dossier
Registration Dossier
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EC number: 903-945-5 | CAS number: -
Flammability
Administrative data
Link to relevant study record(s)
Description of key information
Based on the flash point of the reaction mass and the negative result on chlorodifluoroacetic acid, the reaction mass is considered as non flammable.
Key value for chemical safety assessment
- Flammability:
- non flammable
Additional information
In accordance with the ECHA guidance R7a (Nov. 2012), the physicochemical studies reporting data relevant for classification as a flammable liquid are flashpoint and boiling point. Both data are available and are reported in the sections 4.11 and 4.3 of the present iuclid file, and show that the reaction mass of chlorodifluoroacetic acid and trifluoroacetic acid is non flammable.
Additionally, as CDFA has a flash point which shows that it is classified as flammable liquid catetgory 3 and as it is super cooled liquid, a flammability study according to the EC A10 method and under GLP conditions was performed. In the preliminary study, neither propagation nor ignition was noticed. No main test was required, and CDFA is considered as non flammable in this study which is therefore selected as supporting study of the waiving for this endpoint.
In accordance with the ECHA guidance R7a (Nov. 2012), the Guidance on the Application of the CLP criteria (Nov. 2012) and the Appendix 6, section 5.1 of the UN-MTC (UN, 2009), the reaction mass of chlorodifluoroacetic acid and trifluoroacetic acid is not considered as a self-reactive substance because its constituents do not contain chemical group associated with explosive or self-reactive properties.
In accordance with the ECHA guidance R7a (Nov. 2012) and the Guidance on the Application of the CLP criteria (Nov. 2012) the reaction mass of chlorodifluoroacetic acid and trifluoroacetic acid is not considered as a pyrophoric liquid because its constituents do not contain chemical group associated with the ability to spontaneously ignite in air. Indeed, they do not contain metals or metalloids, organo-phosphines, hydrides, haloacetylenes, acetylides, and are not a powder.
In accordance with the ECHA guidance R7a (Nov. 2012) and the Guidance on the Application of the CLP criteria (Nov. 2012), the reaction mass of chlorodifluoroacetic acid and trifluoroacetic acid is not considered as a self-heating substance because it is a liquid and therefore has a low melting point.
In accordance with the ECHA guidance R7a (Nov. 2012) and the Guidance on the Application of the CLP criteria (Nov. 2012), the reaction mass of chlorodifluoroacetic acid and trifluoroacetic acid is not considered as substance which, in contact with water, emits flammable gazes because the chemical structure of the its constituents do not contain metals or metalloids and are known to be soluble in water to form a stable mixture.
Therefore, based on the above information, no additional data on flammability of is required.
Justification for classification or non-classification
Experimental data on the reaction mass of CDFA and TFA show that it is non flammable and it is not classified according to the CLP 1272/2008 and the directive 67/548/EC criteria.
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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