Reaction products of disubstituted alkane, nickel, (Z/E)-substituted alkene, reaction mass of tetraalkyl-3,3’-di(propan-2-yl)-biphenyl-diyl tetrakis(dialkylphenyl) bis(phosphite) and tris(dialkylphenyl) phosphite and zinc halide

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Cross-reference

Reason / purpose for cross-reference:

data waiving: supporting information

Remarks:

Determination of exothermic decomposition energy by DSC

Reference

The submission substance is neither self-reactive nor explosive based on an exothermic decomposition energy of 64.53 J/g at an onset temperature of 65.87 °C.

To exclude any possible self-reactive or explosive properties of the submission substance, the exothermic decomposition energy was determined applying differential scanning calorimetry (DSC) in a reliable study performed compliant with GLP.

According to Screening Procedures given in the UN manual of tests and Criteria (UN no. ST/SG/AC.10/11/Rev.6), explosiveness as well as self-reactiveness can be excluded if the exothermic decomposition energy is less than 500 J/g and 300 J/g, respectively. Accordingly, DSC was performed considering requirements as outlined in the UN manual of tests and Criteria (UN no. ST/SG/AC.10/11/Rev.6) section 20.3.3.3. As such, sealed sample vessels were used (closed, gold coated) avoiding air (flow of nitrogen). Further, rapid heating rates were avoided (2.5 K/min).

As a result, integration of the observed exothermic peak yielded an exothermic decomposition energy of 64.53 J/g at an onset temperature of 65.87 °C.

Conclusion:

The determined exothermic decomposition energy of the submission substance is pronouncedly below the limits given for self-reactiveness (300 J/g) as well as explosiveness (500 J/g). Because of this, there are no classification requirements with regard to self-reactiveness and explosiveness for the submission substance.