Ammonium 3-nitrobenzoate

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2018-03-08 - 2018-04-07

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Pre-Test as foreseen in the guideline

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

other: UN Handbook “Recommendations on the transport of dangerous goods; Manual of tests and criteria”; sixth revised edition, UN, 2015, Section 20.2.1, 20.3.3.3 und Appendix 6

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: OECD Guidelines for the Testing of Chemicals, Method No. 113, adopted 12. May 1981: “Screening Test for Thermal Stability and Stability in Air”

Deviations:

no

Test guideline 3

Guideline:

other: REACH Annex VII, column 2 of section 7.11

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Ammonium 3-nitrobenzoate

EC Number:

242-965-2

EC Name:

Ammonium 3-nitrobenzoate

Cas Number:

19328-56-4

Molecular formula:

C7H5NO4.H3N

IUPAC Name:

ammonium 3-nitrobenzoate

Test material form:

solid: particulate/powder

Remarks:

slightly beige

Details on test material:

Storage: Room Temperature: (20 ± 5°), Keep away from humidity

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: sponsor

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: The test item was stored in a closed vessel at room temperature (15.8 – 23.0 °C).

Results and discussion

Small-scale preliminary tests

Small-scale preliminary tests 1

Key result

Parameter:

other: Heating on a magnesia groove

Remarks:

Safety pre-test 1

Remarks on result:

not thermal sensitive if heated under defined confinement

Remarks:

When heated on a magnesia groove over a Bunsen burner, the test item melted to a yellow liquid, which burned with a yellow soothing flame.

Small-scale preliminary tests 2

Key result

Parameter:

other: Beaten with a hammer

Remarks:

Safety pre-test 1

Remarks on result:

other: not sensitive to impact

Remarks:

When the test item was beaten with a hammer on the anvil, the test item appeared compacted. No further reaction was observed.

Small-scale preliminary tests 3

Key result

Parameter:

other: Heated to 520°C in muffle furnace

Remarks:

Safety pre-test 2

Remarks on result:

not thermal sensitive if heated under defined confinement

Remarks:

After reaching a temperature of 520 °C and cooling down the weight of the crucible was recorded with 620.99 mg, the gold sealing of the crucible was grey-black colored. Then the crucible was opened, the sealing was grey coloured inside. The test item was carbonized.

Small-scale preliminary tests 4

Key result

Parameter:

other: DSC measurement

Remarks on result:

not thermal sensitive if heated under defined confinement

Remarks:

Three events were detected. The first two events were endotherm. The last one showed the typical trend of decomposition, without a relevant exothermic event.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Remarks:

Based on pre-test as required by the guideline

Conclusions:

A screening test via DSC (differential scanning calorimetry) was conducted from 0°C to 520 °C according to the OECD Guidelines for the Testing of Chemicals, Method No. 113, adopted 12. May 1981: “Screening Test for Thermal Stability and Stability in Air” under GLP with no deviations, thermal stability is a screening test for hazard assessment, and is hence considered sufficiently reliable to assess the thermal stability of the test item.
No relevant exothermic event at all was observed, therefore it is stated:
- the released energy is less than 300 J/g, the test item is no subject to the classification procedures for self-reactive substances.
- the released energy is less than 500 J/g and the onset of exothermic decomposition is below 500 °C, the acceptance procedures for Class 1 explosives need not to be applied.
according to the UN Handbook “Recommendations on the transport of dangerous goods; Manual of tests and criteria” (2009).
The measurement of indium after calibration met the validity criteria. Therefore, the result of the study is considered valid.

Executive summary:

A screening test via DSC (differential scanning calorimetry) was conducted from 0°C to 520 °C according to the OECD Guidelines for the Testing of Chemicals, Method No. 113, adopted 12. May 1981: “Screening Test for Thermal Stability and Stability in Air” under GLP.

No relevant exothermic event at all was observed, therefore it is stated:

- the released energy is less than 300 J/g, the test item is no subject to the classification procedures for self-reactive substances.

- the released energy is less than 500 J/g and the onset of exothermic decomposition is below 500 °C, the acceptance procedures for Class 1 explosives need not to be applied.

according to the UN Handbook “Recommendations on the transport of dangerous goods; Manual of tests and criteria” (2009).