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EC number: 220-479-1
CAS number: 2781-00-2
The classification of organic peroxides into one of the seven categories of “Types A to G” is given in decision logic Figure 2.15.1 of CLP, based on the test series A to H, as described in the Part II of the UN-MTC. The substance is classified by UN as Organic Peroxide Type D, H242.
According to chapter 2.15 of the CLP
regulation, organic peroxides are thermally unstable substances or
mixtures, which can undergo exothermic self-accelerating decomposition.
In addition, they can have one or more of the following properties:
(i) be liable to explosive decomposition;
(ii) burn rapidly;
(iii) be sensitive to impact or friction;
(iv) react dangerously with other substances.
An organic peroxide is regarded as possessing
explosive properties when in laboratory testing the mixture
(formulation) is liable to detonate, to deflagrate rapidly or to show a
violent effect when heated under confinement.
The classification of an organic peroxide in
one of the seven categories “Types A to G” is dependent on its
detonation, thermal explosion and deflagrating properties, its response
to heating and the concentration
Based on the results of the UN-MTC tests
(below) and the decision
classified as Organic Peroxide, Type D.
Data are Company Data/ DATATOP/ UN Test Manual
According to Guidance on information requirements and chemical safety
assessment, R7a, Endpoint specific guidance, R.22.214.171.124, the UN Test
method N.4, for self-heating substances and mixtures does not need to be
conducted as the substance is classified as organic peroxide. Thus the
substance is not classified as self-heating under CLP.
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