Registration Dossier

Administrative data

Endpoint:
explosive properties of explosives
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion

Executive summary:

STATEMENT FOR JUSTIFICATION OF OMISSION OF STUDY

 

Name of substance:     Benzene, ethenyl, ar–bromo derivs

 

Omitted study:A14: Explosive properties

 

Method:

 

The explosive properties were predicted based structural considerations rather than by formal testing using Method A14 of Council Regulation (EC) No 440/2008.Screening procedures represent an intelligent testing strategy (ITS) for explosive properties. In accordance with the Guidance on information requirements and chemical safety assessment, if ITS is applied correctly to the explosive properties endpoint, only substances for which it is suspected will give a positive result in one of the explosive properties tests need to be tested.

 

Procedure:

 

The structure of the substance was assessed for chemical groups that would imply explosive properties. Common examples of such groups areacetylenic compounds, metal acetylides, haloacetylene derivatives, diazo compounds, nitroso and nitro compounds, acyl or alkyl nitrites and nitrates, 1,2-epoxides, metal fulminates oraci-nitro salts, N-metal derivatives, N-nitroso and N-nitro compounds, N-azolium nitroimidates, azo compounds, arene diazoates, bis-arenediazo oxides and sulfides, triazines, high-nitrogen compounds, peroxy compounds, metal peroxides, peroxoacids salts, azides, arenediazonium oxides, diazonium sulfides and derivatives, arenediazo aryl sulfides, halogen oxide and N-halogen compounds.

 

Results:

 

A review of the structure suggests that there are no chemical groups present that would imply explosive properties.

 

Conclusions:

 

Based on the known chemical and physical properties of the substance and its chemical structure, a negative result is predicted for the A14 Explosive Properties test of Council Regulation (EC) No 440/2008.As such it is considered justified to omit the test.

 

References:

 

Bretherick (1999) Bretherick’s Handbook of Chemical Reactive Hazards: An Indexed Guide to Published Data, 6th Edition (2 volume set).

 

W. C. Lothrop and G. R. Handrick. “The relationship between performance and constitution of pure organic explosive compounds.”Chemical Reviews, 44:419–445, 1949.

 

Table R.7.1-28 of Chapter R.7a: Endpoint specific guidance within ECHA REACH Guidance on Information Requirements and Chemical Safety Assessment.