Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Link to relevant study record(s)

Description of key information

From the experimental values of flammability, it is found that 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. is non-flammable.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

From the experimental values of flammability, it is found that 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. ignited when the flame of bunsen burner having temperature of 950°C was brought in contact with it. Thus it can be concluded that 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. is flammable only at high temperature of about 950°C. However since such high temperatures are not found under normal circumstances of transportation and use, 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. was considered non-flammable for chemical safety assessment.

Justification for classification or non-classification

2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs is considered to be non-flammable for classification purposes.