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Description of key information

The test substance has no danger of explosion according to the explosive properties.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

As a screening method for determination of explosive properties a differential scanning calorimetry (DSC) was performed. If the decomposition energy is below 500 J/g the main test of explosive properties according A. 14 is unnecessary.

The method provides a scheme of testing to determine whether or not a solid, a liquid or a pasty substance or preparation presents a danger of explosion when submitted to the effect of a flame (thermal sensitivity) or to impact or friction (sensitivity to mechanical stimuli).

Thermal sensitivity

Three tests were performed with a circular nozzle plate with a hole of 2 mm diameter used.

Test No.

weight of test substance (grams)

nozzle width (mm)

ti

(sec)

t2(sec)

reaction

appearance; number of fragments

1

21.0

2.0

13.6

>300

burning

tube unchanged

2

20.9

2.0

12.4

>300

bang

tube unchanged

3

20.9

2.0

11.5

>300

burning

tube unchanged

Mechanical sensitivity (shock)

No explosion within 6 tests using a 10 kilogram mass from a height 0.4 m.

 

Mechanical sensitivity (friction)

No explosion within 6 tests pinload with 360 newton

 

The test substance has no danger of explosion according to the explosive properties.

 

Justification for classification or non-classification