1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

Explosiveness

Administrative data

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 23 OCTOBER 2019 to 16 DECEMBER 2019

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

other: OECD Test Guideline 113

Version / remarks:

OECD Test Guideline 113 (1981) Screening Test for Thermal Stability and Stability in Air.

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Part I: Classification procedures, test methods and criteria relating to explosives of Class 1

Version / remarks:

UN Recommendations on the TRANSPORT OF DANGEROUS GOODS: Manual of Tests and Criteria, Rev. 6 (2015) and UN-Model Regulations, Rev. 20 (2017)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

EC Number:

274-126-1

EC Name:

1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

Cas Number:

69808-32-8

Molecular formula:

C17H17ClN4O2

IUPAC Name:

1-butyl-5-[(4-chlorophenyl)azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

Test material form:

solid: particulate/powder

Details on test material:

- State of aggregation: powder
- Particle size distribution: not determined
- Mass median aerodynamic diameter (MMAD): not determined
- Geometric standard deviation (GSD): not determined
- Shape of particles: not determined
- Surface area of particles: not determined
- Crystal structure: not determined
- Coating: none
- Surface properties: not determined
- Density: 1.3526 ± 0.0010 g/cm3 at 20.0 ± 0.2°C
- Moisture content: <0.5%
- Residual solvent: not detected
- Activation: none
- Stabilisation: none
- Other:

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: 2832065
- Expiration date of the lot/batch: 14/02/2028
- Purity test date: 04/09/2018

RADIOLABELLING INFORMATION (if applicable)
- Radiochemical purity:
- Specific activity:
- Locations of the label:
- Expiration date of radiochemical substance:

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature (20+/-5ºC)
- Stability under storage conditions: stable
- Stability under test conditions: stable
- Solubility and stability of the test substance in the solvent/dispersant/vehicle/test medium: stable
- Reactivity of the test substance with the solvent/vehicle /test medium (if applicable):

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: none
- Preliminary purification step (if any):
- Preparation of a nanomaterial dispersion (incl. dilution): none
- Final dilution of a dissolved solid, stock liquid or gel: none
- Final preparation of a solid: none

FORM AS APPLIED IN THE TEST (if different from that of starting material)

INFORMATION ON NANOMATERIALS: No applicable
- Chemical Composition:
- Density:
- Particle size & distribution:
- Specific surface area:
- Isoelectric point:
- Dissolution (rate):

TYPE OF BIOCIDE/PESTICIDE FORMULATION (if applicable)

OTHER SPECIFICS
- measurement of pH, osmolality, and precipitate in the culture medium to which the test chemical is added:
- other information:

Results and discussion

Small-scale preliminary tests

Key result

Parameter:

other: OECD Test Guideline 113

Remarks:

OECD Test Guideline 113, Screening Test for Thermal Stability and Stability in Air. The thermal stability of the test item is investigated by DSC (differential scanning calorimetry).

Value:

-600

Remarks on result:

other: The test item in enclosed glass crucibles showed an exothermic effect in the temperature range of 230-320ºC with an average decomposition energy of -600 J/g.

Results of test series for explosives

Results of test series for explosives 1

Key result

Test series:

UN Test series 2

Method:

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

Parameter:

other: The time taken for the pressure to rise from 690 kPa to 2.070 kPa above atmospheric.

Value:

0

Result:

result is considered "-" (negative)

Remarks:

Due to the fact of the test item did not reach a pressure of 690 kPa, the UN Transport Regulation Test 18c) and 28c) deemed to be "-".

Remarks on result:

time for a pressure rise from 690 to 2070 kPa (ms)

Remarks:

Due to the fact of the test item did not reach a pressure of 690 kPa, the UN Transport Regulation Test 18c) and 28c) deemed to be "-".

Results of test series for explosives 2

Key result

Test series:

UN Test series 1

Method:

UN Test 1 (c) (i): Time/pressure test

Parameter:

other: The time taken for the pressure to rise from 690 kPa to 2.070 kPa above atmospheric.

Value:

0

Result:

result is considered "-" (negative)

Remarks:

Due to the fact of the test item did not reach a pressure of 690 kPa, the UN Transport Regulation Test 18c) and 28c) deemed to be "-".

Remarks on result:

time for a pressure rise from 690 to 2070 kPa (ms)

Remarks:

Due to the fact of the test item did not reach a pressure of 690 kPa, the UN Transport Regulation Test 18c) and 28c) deemed to be "-".

Results of test series for explosives 3

Key result

Test series:

test data derived by a competent authority

Remarks:

Thermal sensitivity: Koenen-Test (EC A.14)

Method:

other: Koenen-Test (EC A.14)

Parameter:

limiting diameter (mm)

Value:

300

Result:

result is considered "-" (negative)

Remarks:

Due to the fact that the test series with a 2.0 mm and 6 mm diameter orifice plate showed no explosion, the A.14 test regarding thermal sensitivity deemed to be negative.

Remarks on result:

no mass explosion

Results of test series for explosives 4

Key result

Test series:

UN Test series 2

Method:

UN Test 2 (b): Koenen test

Parameter:

limiting diameter (mm)

Value:

300

Result:

result is considered "-" (negative)

Remarks:

Due to the fact the test series with a 2.0 mm diameter orifice plate showed no explosion, the UN Transport Regulation Test 2(b) deemed to be "-".

Remarks on result:

no mass explosion

Results of test series for explosives 5

Key result

Test series:

UN Test series 1

Method:

UN Test 1 (b): Koenen test

Parameter:

limiting diameter (mm)

Value:

300

Result:

result is considered "-" (negative)

Remarks:

Due to the fact that the test series with a 1.0 mm diameter orifice plate showed no explosion, the UN Transport Regulation Test 1(b) deemed to be "-".

Remarks on result:

no mass explosion

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Remarks:

The test item does not have to be classified as an explosive substance in class 1 according to the UN Transport Regulation. The test item does not have to be classified as explosive substance in class 1 according to GHS or CLP Regulation EC 1272/2008 Annex 1:2.1, respectively. For information: Regulation EC No. 440/2008 M;ethod A.14.: The test item is not an explosive substance regarding the thermal sensitivity.

Conclusions:

The GHS, the UN Transport Regulation and CLP REgulation EC 1272/2008 aren't met.