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Physical & Chemical properties

Endpoint summary

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Description of key information

Appearance / physical state / colour:

The appearance of 2-aminotoluene-4-sulphonic acid was observed to be an organic compound with white to pinkish white powder in nature.

Melting point/ Freezing point:

Based on prediction done using MPBPVP v1.43, the melting point of chemical 2-aminotoluene-4-sulphonic acid was estimated to be 139.17 ˚C.

Boiling point:

Based on prediction done using MPBPVP v1.43, the Boiling point of chemical 2-aminotoluene-4-sulphonic acid was  estimated to be 374.86 ˚C.

Density:

The density of chemical 2-aminotoluene-4-sulphonic acid was estimated to be 1.431 ± 0.06 g/cm3 at 20 °C and 760 mmHg pressure.

Particle size distribution (Granulometry):

The particle size distribution of 2-aminotoluene-4-sulphonic acid was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.

Vapour pressure:

The estimated vapour pressure of the test substance 2-aminotoluene-4-sulphonic acid at 25 deg C was 9.43E-006 Pa.

Partition coefficient:

The octanol water partition coefficent of target chemical 2-aminotoluene-4-sulphonic acid( CAS no. 618 -03 -1) was determined to be -1.53. On the basis of log Pow value the test chemical 2-aminotoluene-4-sulphonic acid was considered to be hydrophilic in nature which is also supported by the high water solubility of the this chemical.

Water solubility:

The water solubility of 2-aminotoluene-4-sulphonic acid is determined to be 17400 mg/L at 17 °C.

Surface tension:

Based on the prediction done by ACD labs, the surface tension for chemical 2-aminotoluene-4-sulphonic acid was predicted to be 61.7 ± 3.0 dyne/cm.

Flash point:

Based on the Calculation done using  scientifically verified and validated formulas / equations, the flash point of chemical 2-aminotoluene-4 -sulphonic acid was estimated to be 196.906 degree C.

Autoflammability:

2-aminotoluene-4-sulphonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2-aminotoluene-4-sulphonic acid is not auto-flammable.

Flammability:

2-aminotoluene-4-sulphonic acid 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 2-aminotoluene-4-sulphonic acid is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 2-aminotoluene-4 -sulphonic acid 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.

Oxidising properties:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.

Additional information

Appearance / physical state / colour:

Based on available data from obtained report, the appearance of 2-aminotoluene-4-sulphonic acid was observed to be an organic compound with white to pinkish white powder in nature.

Melting point/ Freezing point:

Based on the prediction done using the EPI Suite MPVPBP V1.43, the melting point of chemical 2-aminotoluene-4-sulphonic acid was predicted.

The melting point of chemical 2-aminotoluene-4-sulphonic acid was estimated to be 139.17 ˚C.

Boiling point:

Based on the prediction done using the EPI Suite MPVPBP V1.43, the Boiling point of chemical 2-aminotoluene-4-sulphonic acid was predicted.

The boiling point of chemical 2-aminotoluene-4-sulphonic acid was estimated to be 374.86 ˚C

Density:

Based on prediction done using ACD/I-Lab 2.0 and Scifinder, the density of chemical 2-aminotoluene-4-sulphonic acid was estimated to be 1.431 ± 0.06 g/cm3 at 20 °C and 760 mmHg pressure.

Particle size distribution (Granulometry):

The particle size distribution of 2-aminotoluene-4-sulphonic acid was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.

Vapour pressure:

Modified Grain method (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of the test substance 2 -aminotoluene-4-sulphonic acid using MPBPVP v1.43 of EPI SUITE.

The estimated vapour pressure of the test substance 2-aminotoluene-4-sulphonic acid at 25 deg C was 9.43E-006 Pa.

Partition coefficient:

The octanol water partition coefficent of target chemical 2-aminotoluene-4-sulphonic acid( CAS no. 618 -03 -1) was determined to be -1.53. On the basis of log Pow value the test chemical 2-aminotoluene-4-sulphonic acid was considered to be hydrophilic in nature which is also supported by the high water solubility of the this chemical.

Water solubility:

Based on available data from authoritative databases and modelling databases, the water solubility of 2-aminotoluene-4-sulphonic acid is determined to be 17400 mg/L at 17 °C.

Hence on the basis of experimental value the chemical 2-aminotoluene-4-sulphonic acid was considered to be very soluble in water.

Surface tension:

Based on the prediction done by ACD labs Software (v12.1.0.50375), the surface tension for chemical 2-aminotoluene-4-sulphonic acid was predicted to be 61.7 ± 3.0 dyne/cm.

Flash point:

Based on the calculation done using  scientifically verified and validated formulas / equations, the flash point of chemical 2-aminotoluene-4 -sulphonic acid was estimated to be 196.906 degree C. Thus, according to flash point value the chemical 2-aminotoluene-4-sulphonic acid was not classified as flammable.

Autoflammability:

2-aminotoluene-4-sulphonic acid did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2-aminotoluene-4-sulphonic acid is not auto-flammable.

Flammability:

2-aminotoluene-4-sulphonic acid 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 2-aminotoluene-4-sulphonic acid is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 2-aminotoluene-4 -sulphonic acid 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.

Oxidising properties:

The study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.