(E)-3-methyl-5-cyclopentadecen-1-one

Explosiveness

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

explosive properties of explosives

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
According to REACh Annex VII / column 2, the study does not need to be conducted if there are no chemical groups associated with explosive properties present in the molecule.
Based on criteria from:
- Regulation (EC) N°1272/2008 (CLP) Annex I, §2.1.4.,
- UN Recommendations on the Transport of Dangerous Goods - Manual of Tests and Criteria (7th revised edition, 2019), Appendix 6 Screening procedures §A6.3)
- ECHA endpoint specific guidance on Information Requirements (R.7a, v6.0, July 2017, §R.7.1.11),
NO REACTIVE GROUP was identified in the chemical structure of the constituents.
Then explosive properties are not anticipated, and the acceptance procedure for Class 1 explosives shall not apply, no further testing is required.

Reference 2

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

1995-06-30 to 1995-07-26

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP. No deviation affected the quality of the study. Purity is specified in the report, and isomers composition is available from the notifier. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Version / remarks:

Commission Directive 92/69/EEC

GLP compliance:

yes (incl. QA statement)

Remarks:

Inspected on 31 January 1994. Signed on 16 March 1994

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Value:

6

Remarks on result:

not thermal sensitive if heated under defined confinement

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Value:

2

Remarks on result:

not thermal sensitive if heated under defined confinement

Parameter:

sensitiveness to impact: impact energy (J)

Value:

40

Remarks on result:

not sensitive to impact using an impact energy of 40 J

The results obtained during testing are detailed below:

BAM fall hammer test

Test 1 to 6: There were no signs of ignition or explosion on impact. When the test assembly was dismantled there were no signs of decomposition.

Koenen steel tube test

6 mm orifice plate

Test	Time(s)	Observations
1	105	Orange flame from the orifice.
	125	Flame increased in size.
	135	Flame further increased in size, engulfing the head of the tube. Burning test material ran down the sides of the tube and was ejected from the orifice. Black smoke was emitted.
	179	Flame subsided.
	256	Flame self-extinguished.
	300	Test stopped. Tube recovered unchanged.
2	102	Orange flame from the orifice.
	115	Flame increased in size.
	134	Flame further increased in size, engulfing the head of the tube.
	147	Burning test material ran down the sides of the tube and was ejected from the orifice. Black smoke was emitted.
	195	Flame subsided.
	261	Flame self-extinguished.
	300	Test stopped. Tube recovered unchanged.
3	101	Orange flame from the orifice.
	116	Flame increased in size.
	127	Flame further increased in size, head of the tube engulfed in flame.
	143	Burning test material ran down the sides of the tube and was ejected from the orifice. Black smoke was emitted.
	199	Flame subsided.
	256	Flame self-extinguished.
	300	Test stopped. Tube recovered unchanged.

2 mm orifice plate

Test	Time(s)	Observations
1	120	Orange flame from the orifice.
	131	Flame increased in size.
	153	Flame further increased in size.
	167	Burning test material ran down the sides of the tube and was ejected from the orifice.
	179	Orange flame turned to a large orange jet of flame.
	205	Jet of flame reverted to an orange flame.
	254	Flame subsided.
	294	Flame self-extinguished.
	300	Test stopped. Tube recovered unchanged.
2	95	Orange flame from the orifice.
	107	Flame increased in size.
	121	Flame further increased in size.
	132	Burning test material ran down the sides of the tube and was ejected from the orifice.
	148	Orange flame turned to a large orange jet of flame.
	188	Jet of flame reverted to an orange flame.
	223	Flame subsided.
	255	Flame self-extinguished.
	300	Test stopped. Tube recovered unchanged.
3	104	Orange flame from the orifice.
	120	Flame increased in size, burning test material ran down the sides of the tube. Flame engulfed the head of the tube.
	136	Burning test material was ejected from the orifice.
	146	Orange flame turned to an orange jet of flame.
	169	Jet of flame reverted to an orange flame.
	186	Flame subsided.
	241	Flame self-extinguished.
	300	Test stopped. Tube recovered unchanged.

Water content: 0.06525%

Interpretation of results:

study cannot be used for classification

Conclusions:

The test substance is not sensitive to heating and shock.
The test is inconclusive with regard to Regulation (EC) N°1272/2008 (CLP) criteria.

Executive summary:

The explosive properties of the substance were tested according to EU A14 guideline, for sensivity towards heating and shock, under GLP.

The BAM fall hammer was used with a 10 kg mass dropped from 0.4 m, and the test was repeated six times. The Koenen test was performed with holes of diameter 6 mm and 2 mm, and repeated three times each.

All results were negative.

Description of key information

Testing according to CLP criteria waived, based on chemical structure of constituents.

Not explosive with regard to heat or shock sensitivity (experimental, DSD criteria).

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

According to the screening procedure described in Regulation (EC) N°1272/2008 (CLP), the chemical structure of the constituents do not contain any chemical group associated with explosive properties.

Therefore, no further testing is required.

Moreover, a fully reliable, GLP, supporting experimental study for the determination of explosive properties, with regard to sensitivity towards heat and shock (friction not required for liquids), is available.

However, this test, conducted according to Directive 67/548/EEC (DSD) classification criteria, cannot be extrapolated to CLP criteria, as the testing strategy and study design differ significantly. Nevertheless the Koenen tube test is common, and the negative result confirms that the substance is not sensitive to heat.

Justification for classification or non-classification

The substance is NOT classified as explosive according to CLP criteria, based on the structural formula of constituents, that fulfills the screening procedure.