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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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, 4 -amino-N-(4 -aminophenyl)benzenesulphonamide observed to be a pale brown solid.

Melting point:

Melting point of given chemical 4-amino-N-(4-aminophenyl)benzenesulphonamide is concluded in the range of 138 to 139 Deg C.

Boiling Point:

Based on prediction done using MPBPVP v1.43, the Boiling point of 4-amino-N-(4-aminophenyl)benzenesulphonamide was  estimated to be 447.88 Deg C.

Density:

Based on prediction done using ACD/I-Lab 2.0, the density of test 4-amino-N-(4-aminophenyl)benzenesulphonamide was estimated to be 1.410 g/cm3.

Particle size distribution:

The particle size distribution of 4-amino-N-(4-aminophenyl)benzenesulphonamide 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 4-amino-N-(4-aminophenyl)benzenesulphonamide at 25 deg C was 1.45E-06 Pa.

Partition coefficient: The estimated partition coefficient for 4-amino-N-(4-aminophenyl)benzenesulphonamide was 0.2016.

Water solubility:

The estimated water solubility of 4-amino-N-(4-aminophenyl)benzenesulphonamide at 25 deg C was 13410 mg/l.

Surface tension:

Based on the data from ACD labs, surface tension for 4-amino-N-(4-aminophenyl)benzenesulphonamide was predicted to be 0.0706 N/m.

Flash point:

Flash point of 4-amino-N-(4-aminophenyl)benzenesulphonamide is calculated at 1 atm. Pressure to be 253.71 Deg C.

Auto flammability:

4-amino-N-(4-aminophenyl)benzenesulphonamide did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that  4-amino-N-(4-aminophenyl)benzenesulphonamide is not auto-flammable.

Flammability:

4-amino-N-(4-aminophenyl)benzenesulphonamide 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 4-amino-N-(4-aminophenyl) benzenesulphonamide is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 4-amino-N-(4-aminophenyl)benzenesulphonamide 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.

Additional information

Appearance:

On the basis of physical observation and using the sense of smell, 4 -amino-N-(4 -aminophenyl)benzenesulphonamide observed to be a pale brown solid.

Melting point:

Melting point of given chemical 4-amino-N-(4-aminophenyl)benzenesulphonamide is concluded in the range of 138 to 139 Deg C.

Boiling Point:

Based on the prediction done using the EPI Suite MPVPBP V1.43,the Boiling point of 4-amino-N-(4-aminophenyl)benzenesulphonamide was predicted.

The boiling point of 4-amino-N-(4-aminophenyl)benzenesulphonamide was estimated to be 447.88 ˚C.

Density:

Based on prediction done using ACD/I-Lab 2.0, the density of test 4-amino-N-(4-aminophenyl)benzenesulphonamide was estimated to be 1.410 g/cm3.

Particle size distribution:

The particle size distribution of 4-amino-N-(4-aminophenyl)benzenesulphonamide 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 4-amino-N-(4-aminophenyl)benzenesulphonamide using MPBPVP v1.43 of EPI SUITE.

The estimated vapour pressure of 4-amino-N-(4-aminophenyl)benzenesulphonamide at 25deg C was 1.45E-06 Pa.

Partition coefficient:

Based on the available data in a key study from modeling databases, the octanol water partition coefficient (log Pow) value of the test substance 4-amino-N-(4-aminophenyl) benzenesulphonamide (16803 -97 -7) was determine. KOWWIN V1.68 was used to estimate the octanol water partition coefficient of the test substance 4-amino-N-(4-aminophenyl)benzenesulphonamide. The estimated logPOW of the test substance 4-amino-N-(4-aminophenyl)benzenesulphonamide was 0.2016.

Based on the estimated value, the test substance 4-amino-N-(4-aminophenyl)benzenesulphonamide can be considered hydrophillic in nature, which is also supported by the water solubility of the test substance 4-amino-N-(4-aminophenyl)benzenesulphonamide.

In a supporting study from predicted data. The partition coefficient (log Kow) of test chemical 4-amino-N-(4-aminophenyl)benzenesulphonamide (Cas no. 16803 -97 -7) was determined to be 0.1 ±.0.35. Based on the predicted data chemical 4-amino-N-(4-aminophenyl)benzenesulphonamide can be considered to be hydrophilic in nature.

Thus based on the predicted data it was concluded that the chemical was hydrophilic in nature.

Water solubility:

WSKOW v1.42 was used to estimate the water solubility of 4-amino-N-(4-aminophenyl)benzenesulphonamide.

The estimated water solubility of 4-amino-N-(4-aminophenyl)benzenesulphonamide at 25 deg C was 13410 mg/l.

Based on the estimated value, 4-amino-N-(4-aminophenyl)benzenesulphonamide was very soluble in water.

Surface tension:

Based on the data from ACD labs, surface tension for 4-amino-N-(4-aminophenyl)benzenesulphonamide was predicted to be 0.0706 N/m.

Flash point:

Flash point of 4-amino-N-(4-aminophenyl)benzenesulphonamide is calculated at 1 atm. Pressure to be 253.71 Deg C.

Auto flammability:

4-amino-N-(4-aminophenyl)benzenesulphonamide did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that  4-amino-N-(4 -aminophenyl)benzenesulphonamide is not auto-flammable.

Flammability:

4-amino-N-(4-aminophenyl)benzenesulphonamide 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 4-amino-N-(4-aminophenyl) benzenesulphonamide is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 4-amino-N-(4-aminophenyl)benzenesulphonamide 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.