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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Appearance:

On the basis of physical observation and using the sense of smell, N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was observed to be a deep blue powder.

Melting point:

Based on prediction done using MPBPVP v1.43,the melting point of N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino) cyclohexa-2,5-dien-1- ylidene]methyl]aniline monohydrochloride was  estimated to be 349.84 Deg C.

Boiling Point:

Based on prediction done using MPBPVP v1.43,the Boiling point of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was  estimated to be 836.66 Deg C.

Density:

Based on prediction done using ACD/I-Lab 2.0,the density of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was estimated to be 1.09 g/cm3.

Particle size distribution:

The particle size distribution of N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.

Vapour pressure:

The estimated vapour pressure of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride at 25 deg C was 8.36E-19 Pa.

Partition coefficient:

Based on the available data from modeling databases, the partition coefficient (log Pow) value of the test substance N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa -2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was estimated to be 6.01. On the basis of this value, the substance N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino) cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydro chloride can be considered to be hydrophobic in nature.

Water solubility:

The estimated water solubility of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride at 25 deg C was 0.002081 mg/l.

Surface tension:

Based on the data from ACD labs, surface tension for N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was predicted to be 0.0442 N/m.

Flash point:

Flash point of N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride is calculated at 1 atm. Pressure to be 591.66 Deg C.

Auto flammability:

N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride is not auto-flammable.

Flammability:

N-phenyl-4-[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino) cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was considered non-flammable for chemical safety assessment.

Explosiveness:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.

Oxidizing properties:

The study does not need to be conducted because the organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure does not need to be applied.

Stability in organic solvents and identity of relevant degradation products:

The study does not need to be conducted because the stability of the substance is not considered to be critical.

pH:

pH of 1% w/v aqueous solution of the test substance N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride (CAS No.2152 -64 -9) is 7 -8 at 25 °C.

Dissociation constant:

The study does not need to be conducted because the substance is insoluble.

Viscosity:

The study does not need to be conducted because the substance is insoluble.

Additional information

Appearance:

On the basis of physical observation and using the sense of smell, N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was observed to be a deep blue powder.

Melting point:

Based on the prediction done using the EPI Suite MPVPBP V1.43,the melting point of N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was predicted.

The melting point of N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride was estimated to be 349.84˚C.

Boiling Point:

Based on the prediction done using the EPI Suite MPVPBP V1.43,the Boiling point of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was predicted.

The boiling point of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was estimated to be 836.66˚C.

Density:

Based on prediction done using ACD/I-Lab 2.0,the density of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was estimated to be 1.09 g/cm3.

Particle size distribution:

The particle size distribution of N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.

Vapour pressure:

Modified Grain method (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride using MPBPVP v1.43 of EPI SUITE.

The estimated vapour pressure of N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride at 25 deg C was 8.36E-19 Pa.

Partition coefficient:

Based on the available data from modeling databases, the partition coefficient (log Pow) value of the test substance N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa -2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was estimated to be 6.01. On the basis of this value, the substance N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino) cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydro chloride can be considered to be hydrophobic in nature.

Water solubility:

WSKOW v1.42 was used to estimate the water solubility of N-phenyl-4 -[[4 -(phenylamino) phenyl] [4 -(phenylimino) cyclohexa-2, 5 -dien-1 -ylidene] methyl] aniline monohydrochloride.

The estimated water solubility of N-phenyl-4 -[[4 -(phenylamino) phenyl] [4 -(phenylimino) cyclohexa-2, 5 -dien-1 -ylidene] methyl] aniline monohydrochloride at 25 deg C was 0.002081 mg/l.

Based on the estimated value, N-phenyl-4 -[[4 -(phenylamino) phenyl] [4 -(phenylimino) cyclohexa-2, 5 -dien-1 -ylidene] methyl] aniline monohydrochloride was insoluble in water.

Surface tension:

Based on the data from ACD labs, surface tension for N-phenyl-4-[[4-(phenylamino) phenyl] [4-(phenylimino) cyclohexa-2, 5-dien-1-ylidene] methyl] aniline monohydrochloride was predicted to be 0.0442 N/m.

Flash point:

Flash point of N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride is calculated at 1 atm. Pressure to be 591.66 Deg C.

Auto flammability:

N-phenyl-4-[[4-(phenylamino)phenyl][4-(phenylimino)cyclohexa-2,5-dien-1-ylidene]methyl]aniline monohydrochloride did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride is not auto-flammable.

Flammability:

N-phenyl-4-[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino) cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride was considered non-flammable for chemical safety assessment.

Explosiveness:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with explosive properties.

Oxidizing properties:

The study does not need to be conducted because the organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure does not need to be applied.

Stability in organic solvents and identity of relevant degradation products:

The study does not need to be conducted because the stability of the substance is not considered to be critical.

pH:

pH of 1% w/v aqueous solution of the test substance N-phenyl-4 -[[4 -(phenylamino)phenyl][4 -(phenylimino)cyclohexa-2,5 -dien-1 -ylidene]methyl]aniline monohydrochloride (CAS No.2152 -64 -9) is 7 -8 at 25 °C.

Dissociation constant:

The study does not need to be conducted because the substance is insoluble.

Viscosity:

The study does not need to be conducted because the substance is insoluble.