O-(ethoxycarbonyl)-N-(1-methyl-2-oxo-2-phenylethylidene)hydroxylamine

Explosiveness

Link to relevant study record(s)

Reference

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06 January 2017 to 31 January 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Qualifier:

according to guideline

Guideline:

other: United Nations Transportation of Dangerous Goods Recommendations, Tests and Criteria Manual

Version / remarks:

6th revised edition

Deviations:

no

Principles of method if other than guideline:

Gap test : UN Test 2 (a)
Koenen tube test : UN Test 2 (b)
Time / pressure test : UN Test 2 (c)(i)

GLP compliance:

no

Key result

Test series:

UN Test series 2

Method:

UN Test 2 (a): UN gap test

Parameter:

fragmented length (cm)

Value:

0

Result:

result is considered "-" (negative)

Key result

Test series:

UN Test series 2

Method:

UN Test 2 (b): Koenen test

Parameter:

limiting diameter (mm)

Result:

result is considered "-" (negative)

Remarks on result:

other: <1 mm

Key result

Test series:

UN Test series 2

Method:

UN Test 2 (c) (i): Time/pressure test

Parameter:

other: Time for a pressure rise to 2070 kPa

Result:

result is considered "-" (negative)

Remarks on result:

other: A pressure rise to 2070 kPa was not achieved in any of the three tests.

UN GAP TEST

UN Test 2 (a)

The tube remained intact during both tests and no holes were punched through the witness plate. The test result is therefore considered negative (-) (according to the UN Transportation of Dangerous Goods Recommendations).

Test Result: Negative

Test	Sample mass (g)	Apparent density (g.cm-3)	Fragmentation length (mm)	Effect on witness plate
1	275	0.57	0	None
2	297	0.59	0	None

KOENEN TUBE TEST

UN Test 2 (b)

The sample has been shown to have a limiting diameter of < 1 mm. The test result is therefore considered negative (-) (according to the UN Transport of Dangerous Goods Recommendations).

Test Result: Negative

Sample mass (g)	Orifice diameter (mm)	Time to first ignition (s)	Total test time (min)	Fragmentation type	Result
18.6	1	36	5	A	No explosion
18.6	1	35	5	O	No explosion
18.6	1	36	5	A	No explosion

TIME / PRESSURE TEST

UN Test 2 (c) (i)

A pressure rise to 2070 kPa was not achieved in any of the three tests. The test result is therefore considered negative (-) and the substance to show no deflagration (according to the UN Transport of Dangerous Goods Recommendations).

Test Result: Negative

Test	Sample mass (g)	Maximum pressure (kPa)	Time from 690 to 2070 kPa (ms)
1	5.0	181.3	N/A
2	5.0	133.1	N/A
3	5.0	175.1	N/A

Interpretation of results:

other: Not classified in accordance with EU Criteria

Conclusions:

Under the conditions of this study the test results indicate that the test material is exempt from classification as an explosive substance of UN Class 1.

Executive summary:

The explosiveness of the test material was investigated with UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Test 2 (a), 2 (b) and 2 (c)(i).

In the UN Gap test 2 (a) the tube remained intact during both tests and no holes were punched through the witness plate. The test result is therefore considered negative (-). In the Koenen tube test 2 (b) the sample has been shown to have a limiting diameter of < 1 mm. The test result is therefore considered negative (-). In the time/ pressure test 2 (c) (i) a pressure rise to 2070 kPa was not achieved in any of the three tests. The test result is therefore considered negative (-) and the substance shows no deflagration.

Under the conditions of this study the test results indicate that the test material is exempt from classification as an explosive substance of UN Class 1.

Description of key information

Under the conditions of this study the test results indicate that the test material is exempt from classification as an explosive substance of UN Class 1.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

The explosiveness of the test material was investigated with UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Test 2 (a), 2 (b) and 2 (c)(i). The study was awarded a reliability score of 2 in accordance with the criteria set forth by Klimisch et al. (1997).

In the UN Gap test 2 (a) the tube remained intact during both tests and no holes were punched through the witness plate. The test result is therefore considered negative (-). In the Koenen tube test 2 (b) the sample has been shown to have a limiting diameter of < 1 mm. The test result is therefore considered negative (-). In the time/ pressure test 2 (c) (i) a pressure rise to 2070 kPa was not achieved in any of the three tests. The test result is therefore considered negative (-) and the substance shows no deflagration.

Under the conditions of this study the test results indicate that the test material is exempt from classification as an explosive substance of UN Class 1.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the substance does not require classification with respect to explosive properties.