Registration Dossier

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosiveness, other
Type of information:
experimental study
Adequacy of study:
key study
Study period:
February - March 2004
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.14 (Explosive properties)
Principles of method if other than guideline:
The test substance was tested for mechanical sensitivity (shock and friction). The principles of the test methods including their deviations to the guideline are described in detail in the IUCLID field "any other information on materials and methods"
GLP compliance:
not specified
Key result
Parameter:
sensitiveness to impact: impact energy (J)
Value:
40
Remarks on result:
not sensitive to impact using an impact energy of 40 J
Key result
Parameter:
sensitiveness to friction: friction load (N)
Value:
360
Remarks on result:
not sensitive to friction using a friction load of 360 N

Mechanical sensitivity (friction): No scorch marks on the clay plate or the wooden lag and changes in the substance were observed in all six tests.

Mechanical sensitivity (shock): No scorch marks on the driving band or the underlayment and no change of the substance at any sample were observed.

Interpretation of results:
GHS criteria not met
Conclusions:
The two tests for mechanical sensitivity to friction and shock showed no explosive properties of 1,1-Dimethylurea.
Executive summary:

The study was conducted according to a slightly different method than guideline A.14 and investigated the mechanical sensitivity to friction and shock of 1,1 -Dimethylurea. The thermal sensivity was not investigated. The results show no explosive properties of 1,1 -Dimethylurea as the test substance is not sensitive to shock and friction.

Description of key information

The substance 1,1-Dimethylurea does not contain any chemical groups present in the molecule which are associated with explosive properties.

 

Furthermore a study was conducted according to a slightly different method than guideline A.14 and investigated the mechanical sensitivity to friction and shock of 1,1 -Dimethylurea. The thermal sensivity was not investigated. The results show no explosive properties of 1,1 -Dimethylurea as the test substance is not sensitive to shock and friction.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification

The substance 1,1-Dimethylurea does not contain any chemical groups present in the molecule which are associated with explosive properties.

 

Furthermore a study was conducted according to a slightly different method than guideline A.14 and investigated the mechanical sensitivity to friction and shock of 1,1 -Dimethylurea. The thermal sensivity was not investigated. The results show no explosive properties of 1,1 -Dimethylurea as the test substance is not sensitive to shock and friction.

Therefore 1,1 -Dimethylurea does not have to be classified.