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EC number: 229-765-0 | CAS number: 6713-03-7
According to the CLP Regulation (EC) No 1272/2008, Section 2.13.1, an oxidising liquid is defined as ‘a liquid substance or mixture which, while itself not necessarily combustible, may, generally by
yielding oxygen, cause, or contribute to, the combustion of other material.’ A screening procedure has been used to assess the oxidising properties of 1-[(2 -hydroxyethyl)thio]propan-2-ol. This has taken into consideration the following:
1. Annex VII of the REACH regulation ((EC) No 1907/2006), section 7.13, which states that a study of the oxidising behaviour of a substance need not be conducted if the substance ‘is incapable of reacting exothermically with combustible materials, for example on the basis of chemical structure (e.g. organic substances not containing oxygen or halogen atoms and these elements are not chemically bonded to nitrogen or oxygen.’)
2. Section 22.214.171.124 of the CLP regulation covering oxidising liquids states that for organic substances, the classification procedure shall not apply if:
a. The substance does not contain oxygen, fluorine or chlorine; or
b. The substance contains oxygen, fluorine or chlorine and these elements are chemically bonded to carbon or hydrogen.
An evaluation of the functionality within the substance has been performed to identify the presence of elements commonly associated with oxidising behaviour. Typical oxidising agents contain functional groups such as halide-oxygen groups, nitrogen-oxygen groups and some metal-oxygen complexes. The raw materials used to manufacture the substance do not contain any halogens, nitrogen, or metals, and these elements are not present in the final product. Although oxygen is contained within substance, it is chemically bonded to carbon and/or hydrogen and therefore does not significantly contribute to the oxidising potential of the substance. In addition, 1-[(2 -hydroxyethyl)thio]propan-2-ol does not meet the criteria for classification as an oxidising solid, see Section 126.96.36.199 of the CLP regulation.
An expert assessment was carried out based on an examination of the functionality within the substance, to identify the presence of elements commonly associated with oxidising behaviour. This compound contains two oxygen atoms and one chlorine atom. However, these are covalently bound only to carbon atoms and not nitrogen or oxygen. Therefore it is concluded that 1-[(2-hydroxyethyl)thio]propan-2-ol does not have oxidising potential and does not require classification as an oxidising agent.
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.
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