Pent-3-enenitrile

Explosiveness

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.6316 (Explodability)

Version / remarks:

August 1996

Deviations:

no

GLP compliance:

yes

Key result

Parameter:

other: DSC: onset temperature of exothermic decomposition (degr C)

Value:

550

Remarks on result:

not thermal sensitive if heated under defined confinement

Remarks:

Exothermic decomposition was not detected when the sample was heated in a closed aluminium cup when heated from 25 - 550 degr C with a rate of 100 degr C/minute.

Conclusions:

not explosive

Reference 2

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 16-APR-2007 to 22-JUN-2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was performed according to EU guideline and GLP. Description and purity of the substance are known.

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.14 (Explosive properties)

Deviations:

yes

Remarks:

Minor modification to the tube packing procedure proposed in guideline A14. This modification has no effect on the conclusion.

GLP compliance:

yes

Key result

Parameter:

sensitiveness to impact: impact energy (J)

Remarks on result:

not sensitive to impact using an impact energy of 40 J

Key result

Parameter:

thermal sensitivity - Koenen test: diameter of the orifice plate

Remarks on result:

not thermal sensitive if heated under defined confinement

Shock test:

Test n°	Weight (kg)	Height (m)	Results
1 2 3 4 5 6	10 10 10 10 10 10	0.4 0.4 0.4 0.4 0.4 0.4	No ignition, no explosion " " " " "

Pentene-3-nitrile has been determined not to have shock sensitivity to explosion.

Thermal sensitivity test:

Hole diameter (mm)	Weight (g) (V : 27.14 cm³)	T1(s)	T2 (s)	Results
6 6 6	25.590 25.600 25.593	40 36 48	166 149 176	Negative Negative Negative
2 2 2	25.775 25.600 25.718	38 36 35	168 158 147	Negative Negative Negative

T1 : time from application of the flame to a noticeable effect from the orifice.

T2 : time from application of the flame to the end of the combustion without recorded event (e.g. explosion) as in these tests or to an explosion.

The test item burned, and with the 2 mm, the flame is blown.

Pentene-3 -nitrile has been determined not to have thermal sensitivity to explosion.

Interpretation of results:

GHS criteria not met

Conclusions:

3-pentene nitrile does not present a danger of explosion under the conditions of the test.

Executive summary:

The determination of explosion properties of PENTENE-3-NITRILE was performed using thermal sensitivity test apparatus, and shock test apparatus, in accordance with EEC Directive 92/69 Appendix V part A14, except that the thermal sensitivity test was conducted with a minor modification to the tube packing procedure. The GLP were stated.

PENTENE-3-NITRILE does not present a danger of explosion under the conditions of the test.

Description of key information

Not explosive with regard to heat or shock (DSD criteria).
Testing according to CLP criteria waived, based on chemical structure.

Key value for chemical safety assessment

Explosiveness:

non explosive

Additional information

Two fully reliable experimental studies were provided for the determination of explosive properties of 3-PN, with regard to sensitivity towards heat and shock (friction not required for liquids).

Also, according to the screening procedure described in the CLP, the structure of the substance does not contain any chemical group associated with explosive properties. 

Justification for classification or non-classification

The substance is NOT classified as explosive according to CLP criteria, based on the structural formula and the experimental evidence.