2,4-bis[N'-(4-methylphenyl)ureido]toluene

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

September 21, 1992 - September 24, 1992

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

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:

2,4-bis[N'-(4-methylphenyl)ureido]toluene

EC Number:

411-790-5

EC Name:

2,4-bis[N'-(4-methylphenyl)ureido]toluene

Cas Number:

54390-87-3

Molecular formula:

C23H24N4O2, C24H34N4O2

IUPAC Name:

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

Test material form:

solid: particulate/powder

Details on test material:

- Name of test material (as cited in study report): KY-MA
- Lot/batch No.: 4HT059M
- Expiration date of the lot/batch: August 5, 1994
- Physical state: 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:

sensitiveness to impact: impact energy (J)

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Small-scale preliminary tests 2

Parameter:

sensitiveness to friction: friction load (N)

Remarks on result:

not sensitive to friction using a friction load of 360 N

Small-scale preliminary tests 3

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Remarks on result:

not thermal sensitive if heated under defined confinement

Any other information on results incl. tables

Thermal sensitivity (effect of a flame)

Diameter of orifice (mm)	Time till reaction (s)	Results
2	15	Small flame
	35	Fierce flame, smoke
	210	Small flame
2	22	Small flame
	34	Fierce flame, smoke
	157	Small flame
2	22	Small flame
	25	Fierce flame, smoke
	126	Small flame
6	21	Small flame
	37	Fierce flame, smoke
	146	Small flame
6	24	Small flame
	31	Fierce flame, smoke
	140	Small flame
6	23	Small flame
	35	Fierce flame, smoke
	185	Small flame

None of the test tubes showed a deformation. No reaction nor an explosion was observed when exposed to thermal stress.

Mechanical sensitivity with respect to shock

Exposing the test substance to mechanical stress by shock resulted in a formation of a solid pellet of the test substance. No traces of vigorous reaction were observed.

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.

During the test performance, no fire, sparks, smoke or crepitation were observed.

Applicant's summary and conclusion

Interpretation of results:

study cannot be used for classification

Conclusions:

No test substance explosions were observed when exposed to thermal stress or to mechanical stress (shock or friction).

Executive summary:

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.