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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Density

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Administrative data

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Description of key information

The experimental value of density of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. was found to be 0.955 g/cm3 at room temperature of 30°C .This value when converted into 20°C is equivalent to 0.636 g/cm3.

Key value for chemical safety assessment

Relative density at 20C:
0.636

Additional information

The experimental value of density of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. by the mass by volume method was found to be 0.955 g/cm3 at room temperature of 30°C .This value when converted into 20°C is equivalent to 0.636 g/cm3.