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EC number: - | CAS number: -
The endpoint is waived: Trigonox 501-CS40 is classified as a peroxide type D. Flammability is an intrinsic hazard in this class. 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 method is not applicable because according to the ECHA guidance in the application of CLP criteria, 2.8.3.
Test A10:Test method only applicable for solids.
Test A12: water reactivity: Based on the molecular structure as well as experience in handling and use shows that the substance has no water reactive properties. See also Flammability, Bal, 1997 report on analogous 24748-23-0.
Test A13: pyrophoric properties:Based on the molecular structure as well as experience in handling and use shows that the substance has no pyrophoric properties.
Trigonox 501-CS40 is classified as Organic Peroxide Type D. 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.
According to Guidance on information requirements and chemical safety assessment, R7a, Endpoint specific guidance, R.184.108.40.206, the UN test series A - H for self-reactive substances and mixtures, do not need to be conducted as the substance is classified as organic peroxide.
According to Guidance on information requirements and chemical safety assessment, R7a, Endpoint specific guidance, R.220.127.116.11, 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.
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 logic, 3,6,9-Triethyl-3,6,9-trimethyl-1,4,7-triperoxonane 39.0% Petroleum distillate 54.7% is classified as a peroxide type D.
methylethylketone peroxide trimer
40 %, (7.5% Active Oxygen)
Phys-chem UN testing
UN test method
Evaluation and Results
Propagation of detonation test series A
A.6 UN detonation test
19, 20 cm, Reference 17,2 cm, No
Propagation of deflagration test series C
C.1, Time/Pressure test
2501, 2624 and2799 ms, Yes slowly
C.2, Deflagration test
0.044 mm/s, No
Effect of heating under defined confinement test series E
E.1, Koenen test
1.5 mm (F), so non explosive
E.2, Dutch pressure vessel test
2.0 mm, Medium
Explosive power test series F
F.3, Trauzl Test
Not applicable for type D
Self Accelerating Decompostion Temperature (SADT) test series H
H.4, Heat accumulation storage test (400 ml Dewar vessel)
*All Data are Company Data
Organic Peroxide, Type D, Liquid, 3105
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