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Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
oxidising solids
Type of information:
other: Expert Assessment
Adequacy of study:
weight of evidence
Study period:
16 September 2021
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: An assessment was performed on the oxidising properties of 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride based on examination of its molecular structure and functionality.
Qualifier:
no guideline required
Principles of method if other than guideline:
An assessment was performed to establish the oxidising potential of 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride through examination of its molecular structure and functionality.
GLP compliance:
no
Key result
Sample tested:
other: Not applicable - Expert Assessment
Parameter:
other: Assessment based on an examination of the functionality within the substance
Remarks on result:
other: see "other information on results".

Introduction


4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride (6FDA) has been assessed for oxidising properties. The assessment is based on an examination of the functionality within the substance. 


Assessment: Oxidising properties


According to the CLP Regulation (EC) No 1272/2008, Section 2.14.1, an oxidising solid is defined as ‘a solid 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 6FDA. 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 2.14.4.1 of the CLP regulation covering oxidising solids 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 does not contain any nitrogen, or metals, and these elements are not present in the final product.  Oxygen and fluorine are contained within substance 6FDA, however as stated in Section 2.14.4.1 of the CLP regulation, they are chemically bonded to carbon and therefore do not pose an issue for oxidising potential.


Conclusion: It is concluded that 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride does not have oxidising potential and does not require classification as an oxidising agent.


 

Interpretation of results:
GHS criteria not met
Conclusions:
In accordance with an expert assessment carried out for 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride, the
substance is not expected to possess oxidising properties.
Executive summary:

An assessment was performed to establish the oxidising potential of 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride (6FDA) through examination of its moelcular structure and functionality.


It is concluded that 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride does not have oxidising potential and does not require classification as an oxidising agent.


 

Description of key information

An assessment was performed to establish the oxidising potential of 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride (6FDA) through examination of its moelcular structure and functionality.


It is concluded that 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride does not have oxidising potential and does not require classification as an oxidising agent.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Justification for classification or non-classification

An assessment was performed to establish the oxidising potential of 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride (6FDA) through examination of its moelcular structure and functionality.


It is concluded that 4,4'-[2,2,2-trifluoro-1- (trifluoromethyl)ethylidene]diphthalic anhydride does not have oxidising potential and does not require classification as an oxidising agent.