A mixture of: 2,4 -bis(N'-(4-methylphenyl)ureido)toluene; 2,6 -bis(N'-(4-methylphenyl)ureido)toluene

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

September 21, 1992 - September 23, 1992

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: This study has been performed according to EU Method A.14 (1984) and according to GLP principles. Limited information available to verify the composition of the used test substance.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1992

Report date:

1992

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Version / remarks:

(1984)

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

A mixture of: 2,4 -bis(N'-(4-methylphenyl)ureido)toluene; 2,6 -bis(N'-(4-methylphenyl)ureido)toluene

EC Number:

411-070-0

EC Name:

A mixture of: 2,4 -bis(N'-(4-methylphenyl)ureido)toluene; 2,6 -bis(N'-(4-methylphenyl)ureido)toluene

Molecular formula:

C23H24N4O2

IUPAC Name:

3-(2-methyl-5-{[(4-methylphenyl)carbamoyl]amino}phenyl)-1-(4-methylphenyl)urea

Details on test material:

- Name of test material (as cited in study report): KY-ET
- Appearance: Light yellow solid
- Storage condition of test material: At room temperature in the dark

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Parameter:

other: More sensitive to shock than m-dinitrobenzene

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Small-scale preliminary tests 2

Parameter:

other: More sensitive to friction than m-dinitrobenzene

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Small-scale preliminary tests 3

Parameter:

other: Explosive under influence of flame

Remarks:

migrated information

Remarks on result:

negative (not further specified)

Any other information on results incl. tables

Thermal sensitivity (effect of a flame)

Diameter of orifice (mm)	Time till reaction (s)	Results
2	17	Small flame
	74	Fierce flame, smoke
2	19	Small flame
	76	Fierce flame, smoke
2	20	Small flame
	42	Fierce flame, smoke
6	18	Small flame
	39	Fierce flame, smoke
6	19	Small flame
	45	Fierce flame, smoke
6	20	Small flame
	35	Fierce flame, smoke

None of the test tubes showed a deformation. From this it is concluded that the test substance is not explosive when exposed to thermal stress.

Mechanical sensitivity with respect to shock

Exposing the test substance to mechanical stress by shock resulted in the formation of a solid pellet of the test substance. No traces of vigorous reaction were observed. From this, it was concluded that the test substance does not react under mechanical stress by shock.

Mechanical sensitivity with respect to friction

Exposing the test substance to mechanical stress by friction resulted in decomposition of the test substance. The test substance decomposed into a brown residue, probably caused by the released heat coming from the friction between the 2 porcelain surfaces.

During the test performance, no fire, sparks, smoke or crepitation was observed. From this it was concluded that the test substance does react under mechanical stress by friction, but has not to be seen as explosive.

Applicant's summary and conclusion

Interpretation of results:

non explosive

Remarks:

Migrated information

Conclusions:

The explosive properties of the substance were assessed in a thermal sensitivity test, in a test for mechanical stress by shock and in a test for mechanical stress by friction, in accordance with EU Method A.14 (1984) and according to GLP principles. In neither test, the substance was found to possess any explosive properties. In addition, the molecular structures of the constituents of the substance do not contain chemical groups which are associated with explosive properties. From this evidence, it is concluded that the substance has no explosive properties.