Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
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EC number: 231-185-8 | CAS number: 7443-25-6
Endpoint summary
Administrative data
Description of key information
There are no classification requirements for the submission substance with regard to physico-chemical properties.
Relevant key information is given in the endpoint summaries on the respective properties.
For a summary and conclusion with regard to overall physical hazards and respective classification and labelling requirements, see below!
Additional information
A full set of physico-chemical information is available with many of the essential parameters determined according to established testing guidelines. Classification issues are discussed in the relevant endpoint summaries.
With regard to classification for corrosiveness to metals, CLP guidance (1) outlines, that only liquid substances as well as solids that may become liquids (melting point < 55°C) must be taken into consideration here. The submission substance has a melting point of 56.82 °C (determined by DSC, onset-T; peak: 59.09 °C). Accordingly, the melting point is above 55°C. Further, there are no other indications for corrosivenes to metals based on properties outlined in (1) being indicative for corrosiveness to metals, i.e. neither acid nor base, nor containing halogen or known to form complexes with metals. Finally, experience from the handling and use of the substance does not indicate any potential for metal corrosiveness.
Classification as self-heating is not appropriate for the submission substance: according to ECHA Guidance Document on the application of the CLP criteria (1), the self-heating phenomenon applies only to solids, not to liquids; solids with a melting point below 160°C equally should not be considered for classification according to the guidance document due to the endothermic melting process. The melting point of the submission substance is 56.82 °C and as such well below 160 °C.
With regard to classification for self-reactiveness, according to CLP, Annex I, 2.8.4.2. "The classification procedures for self-reactive substances and mixtures need not be applied if:
(a) There are no chemical groups present in the molecule associated with explosive or self reactive properties. Examples of such groups are given in Tables A6.1 and A6.2 in Appendix 6 of the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria;” (2)
This applies to the submission substance.
Overall, the substance does not have to be classified for physical hazards.
(1) Guidance on the Application of the CLP Criteria; ECHA-17-G-21-EN, July 2017
(2) UN Manual of Tests and Criteria; Sixth revised edition; United Nations 2015; Appendix 6 SCREENING PROCEDURES
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.
