2-[[4-[ethyl(2-hydroxyethyl)amino]phenyl]azo]-6-methoxy-3-methylbenzothiazolium chloride

Explosiveness

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

explosiveness, other

Type of information:

experimental study

Adequacy of study:

key study

Study period:

September 20 to November 21, 2003

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods with acceptable restrictions

Qualifier:

according to guideline

Guideline:

other: Guideline VDI 2263, sheet 1

GLP compliance:

no

Key result

Test series:

other: VDI 2263, Blatt 1

Method:

other: differential thermal analysis (DTA)

Parameter:

other: heat tone of exothermal reaction [J/g]

Remarks:

at ca. 138 °C

Value:

-340

Result:

other: non-explosive

Test series:

other: VDI 2263, Blatt 1

Method:

other: differential thermal analysis (DTA)

Parameter:

other: heat tone of exothermal reaction [J/g]

Remarks:

at T>223°C

Value:

-170

Result:

other: non-explosive

Interpretation of results:

GHS criteria not met

Conclusions:

In accordance with the ECHA Guidance on the Application of the CLP Criteria, Version 4.1, June 2015, a substance is not classified as explosive, when the organic substance contains chemical groups associated with explosive properties but the exothermic decomposition energy is less than 500 J/g and the onset of exothermic decomposition is below 500 ºC. In the test conducted, thermal decomposition took place at 138 °C (heat tone: -340 J/g) and at 223 °C (heat tone: -170 J/g). As these values are below the critical values specified, the substance is regarded to be non-explosive.

Executive summary:

To investigate the explosive properties of the test item, it was tested according to guideline VDI 2263, sheet 1 - differential thermal analysis (DTA).

The heat tone of the themal composition at 138 °C was -340 J/g. A second exothermal reaction could be observed at temperatures > 223 °C with a heat tone of -170 J/g.

As the exothermic decomposition energy was less than 500 J/g, the test substance has no explosive properties in the sense of ECHA Guidance on the Application of the CLP Criteria, Version 4.1, June 2015.

Reference 2

Endpoint:

explosiveness, other

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

September 20 to November 21, 2003

Reliability:

3 (not reliable)

Rationale for reliability incl. deficiencies:

other: National standard method without detailed documentation. Test methods does not cover all aspects required for assessment of the explosive properties

Qualifier:

according to guideline

Guideline:

other: Guideline VDI2263, sheet 1

GLP compliance:

no

Method:

other: Fallhammer according to Lütolf as described in guideline VDI 2263, sheet1

Parameter:

other: Number of detonations in ten test repetitions

Value:

0

Result:

other: Not sensitive to shock

Interpretation of results:

study cannot be used for classification

Conclusions:

According to guideline VDI 2263, sheet 1, the test item is not sensitive to shock.

Executive summary:

To investigate the explosive properties of the test item it was tested on sensitivity to shock according to guideline VDI 2263, sheet 1.

As in none out of ten test repetitions, no detonation was registered. Thus it can be concluded that the test-item is not sensitive to shock. A conclusion on the explosive porperties cannot be drawn from this test allone, as no additional information on test substance sensitivity to friction is available.

Description of key information

To investigate the explosive properties of the test item, it was tested according to guideline VDI 2263, sheet 1 - differential thermal analysis (DTA).

The heat tone of the themal composition at 138 °C was -340 J/g. A second exothermal reaction could be observed at temperatures > 223 °C with a heat tone of -170 J/g.

There is also a supporting study available, which concludes, that the test substance is not sensitive to shock.

Key value for chemical safety assessment

Explosiveness:

non explosive

Justification for classification or non-classification

In accordance with the ECHA Guidance on the Application of the CLP Criteria, Version 4.1, June 2015, a substance is not classified as explosive, when the organic substance contains chemical groups associated with explosive properties but the exothermic decomposition energy is less than 500 J/g and the onset of exothermic decomposition is below 500 ºC. In the test conducted, thermal decomposition took place at 138 °C (heat tone: -340 J/g) and at 223 °C (heat tone: -170 J/g). As these values are below the critical values specified, the substance is regarded to be non-explosive.