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Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29 October 1998 to 01 December 1998
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
Deviations:
no
GLP compliance:
yes
Parameter:
sensitiveness to impact: impact energy (J)
Remarks on result:
not sensitive to impact using an impact energy of 40 J
Parameter:
sensitiveness to friction: friction load (N)
Remarks on result:
not sensitive to friction using a friction load of 360 N
Parameter:
thermal sensitivity - Koenen test: diameter of the orifice plate
Remarks on result:
not thermal sensitive if heated under defined confinement

Explosive properties

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.

  

Explosive properties

The test substance has no danger of explosion according to the explosive properties in the sense of Guideline 92/69/EEC, A.14.

Interpretation of results:
GHS criteria not met
Conclusions:
The test substance has no danger of explosion according to the explosive properties.

Executive summary:

The purpose of the test was the determination of the melting point according to Guideline 92/69/EEC part A.14. explosive properties. Study conducted in compliance with GLP.

 

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).

 

The method comprises three parts:

a test of thermal sensitivity;

a test of mechanical sensitivity with respect to shock;

a test of mechanical sensitivity with respect to friction.

 

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.

 

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