5-(N,N-diethylaminosulphonyl)-2-methoxybenzenediazonium chloride

Appearance / physical state / colour

Administrative data

Endpoint:

appearance / physical state / colour

Type of information:

experimental study

Adequacy of study:

key study

Study period:

not specified

Cross-reference

Reason / purpose for cross-reference:

reference to same study

Reference

Endpoint:

explosive properties of explosives

Type of information:

experimental study

Adequacy of study:

key study

Study period:

not specified

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

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

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.14 (Explosive properties)

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

other: Fallhammer - Federal Institute of Materials Testing and Research, Berlin

Deviations:

not specified

Principles of method if other than guideline:

Impact sensitivity test: Fallhammer method

GLP compliance:

no

Key result

Test series:

UN Test series 3

Method:

UN Test 3 (a) (ii): BAM Fallhammer

Parameter:

limiting impact energy (J)

Value:

10

Result:

positive, explosion

Key result

Test series:

UN Test series 3

Method:

other: Differential thermal analysis

Parameter:

other: temperature at which exothermal decomposition occurs (°C)

Value:

80

Result:

other: thermally unstable

An explosion was observed at an impact energy of 10J, after a drying time of 48h.

Decomposition (carbonizing or burning without explosion) was observed at an impact energy of 5J, after a drying time of 48h.

Interpretation of results:

unstable explosive based on GHS criteria

Executive summary:

Even though the DTA experiment is not in accordance with the EU method description for thermal stability, it does show that the substance will no be stable as of an external temperature of 80°C. As such, the substance (in its dried form and diluted 1/1 with NaCl) is considered thermally unstable and is to be classified as an unstable explosive. The fall hammer experiment furthermore shows that the diazonium salt (in its tested form) is sensitive to mechanical impact.

Data source

Reference

Reference Type:

publication

Title:

Decomposition of aromatic diazonium compounds

Author:

Ullrich, R., Grewer, Th.

Year:

1993

Bibliographic source:

Thermochimica Acta, 225, p. 201-211

Materials and methods

Test guideline

Qualifier:

no guideline followed

Principles of method if other than guideline:

Observation taken from publication.

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

5-(N,N-diethylaminosulphonyl)-2-methoxybenzenediazonium chloride

EC Number:

248-543-4

EC Name:

5-(N,N-diethylaminosulphonyl)-2-methoxybenzenediazonium chloride

Cas Number:

27580-14-9

Molecular formula:

C11H16ClN3O3S

IUPAC Name:

5-(diethylsulfamoyl)-2-methoxybenzene-1-diazonium chloride

Results and discussion

Physical state at 20°C and 1013 hPa:

solid

Substance type:

organic

Applicant's summary and conclusion

Conclusions:

The substance is solid at 20°C.