Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Explosiveness

Currently viewing:

Administrative data

Link to relevant study record(s)

Referenceopen allclose all

Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
weight of evidence
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: VDI 2263 Part 1
Principles of method if other than guideline:
The test is performed with the falling hammer (impact energy 40 J). If at least in one out of ten times, without the sensitizing aluminum-wrapping, a blast is registered, the substance is shock sensitive. Otherwise it is not sensitive to impact.
GLP compliance:
no
Key result
Parameter:
sensitiveness to impact: impact energy (J)
Remarks on result:
not sensitive to impact using an impact energy of 40 J
Interpretation of results:
study cannot be used for classification
Conclusions:
Under the experimental conditions the substance is not considered to be explosive.
Executive summary:

The substance was tested for impact sensitivity following VDI Method 2263 Part 1. Impact sensitivy was tested by means of a falling hammer (40 J). Under the experimental conditions the substance is not considered to be explosive (Dystar, 1995).

Endpoint:
explosive properties of explosives
Type of information:
other: expert judgement
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Expert judgment based on thermal analysis and structural alerts
Principles of method if other than guideline:
Expert judgement based on adaptations on information requirements for explosive properties as per Column 2 of Annex VII of REACH Regulation
GLP compliance:
no
Key result
Parameter:
other: assessment based on structure
Remarks on result:
not measured/tested

To determine, whether the dye structure itself could harbour explosive properties the following assessment is considered: Column 2 of REACH Annex VII provides the following specific rules for adaptation of the standard information requirement for explosive properties.

The study does not need to be conducted if:

• there are no chemical groups associated with explosive properties present in the molecule, or

the substance contains chemical groups associated with explosive properties which include oxygen and the calculated oxygen balance is less than 200, or

• The organic substance or a homogenous mixture of organic substances 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 °C.

The target substance contains azo groups (-N=N-structural alerts as reported in Table R.7.1.-28 of the Information Requirements Guidances) and two nitro groups (-NO2 structural alerts as reported in Table R.7.1.-28 of the Information Requirements Guidances) which are structural alerts for explosive properties. However, the thermal behaviour of the substance was tested by DSC from 40 °C to 440 °C. The onset of melting is below 500 °C (i.e. 215.9 °C) and the decomposition energy is below 500 J/g (ca. 489.9 J7g). Based on all the above considerations, the substance is not considered explosive and the explosive properties test does not need to be conducted.

Interpretation of results:
GHS criteria not met
Conclusions:
Based on expert judgement, the substance is not considered to be explosive.
Executive summary:

An expert judgement based on adaptations on information requirements for explosive properties as per column 2 of Annex VII of REACH Regulation was performed. Based on the expert judgement, the substance is not considered to be explosive (Reach&Colours, 2015).

Description of key information

The explosiveness was determined according to VDI Method 2263 Part 1 (Dystar, 1995) and by expert judgement based on the structure of the test substance (Reach&Colours, 2015).

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Justification for classification or non-classification