Registration Dossier
Registration Dossier
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EC number: 229-029-9 | CAS number: 6406-56-0
Endpoint summary
Administrative data
Description of key information
Appearance / physical state / colour:
The appearance of Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was observed to be solid red to brown powder organic compound.
Melting point/ Freezing point:
Based on prediction done using MPBPVP v1.43, the melting point of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was estimated to be 349.84 ˚C.
Boiling point:
Based on prediction done using MPBPVP v1.43, the Boiling point of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was estimated to be 855.43 ˚C.
Density:
The density of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was estimated to be 1.41 ± 0.1 g/cm3.
Particle size distribution (Granulometry):
The particle size distribution of Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate 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 Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate at 25 deg C was 5.19E-021 Pa.
Partition coefficient:
The octanol water partition coefficent (log Pow) of chemical sodium 4-({4-[(2-hydroxy-1-naphthyl)diazenyl]phenyl}diazenyl)benzenesulfonate(CAS no. 6406 -56 -0) was estimated to be 2.68 at temparature 25oC by using Estimation Program Interface (EPI suite) KOWWIN program V1.68. By this log Pow value chemicalsodium 4-({4-[(2-hydroxy-1-naphthyl)diazenyl]phenyl}diazenyl)benzenesulfonateis considered as hydrophilic in nature.
Water solubility:
The water solubility of test substance Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was determined to be at 25 deg C was 10 mg/l.
Surface tension:
Based on the prediction done by ACD labs, the surface tension for chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo) benzenesulphonate was predicted to be 61.1 ± 7.0 dyne/cm
Flash point:
Based on the Calculation done using scientifically verified and validated formulas / equations, the flash point of chemical Sodium 4-(4-(2 -hydroxynaphthalenylazo)phenylazo)benzenesulphonate was estimated to be 609.69 degree C.
Autoflammability:
Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate is not auto-flammable.
Flammability:
Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate 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 Sodium 4-(4-(2 -hydroxynaphthalenylazo)phenylazo) benzenesulphonate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Sodium 4-(4-(2-hydroxynaphthalenylazo) phenylazo)benzenesulphonate 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 Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was observed to be solid red to brown powder organic compound.
Melting point/ Freezing point:
Based on the prediction done using the EPI Suite MPVPBP V1.43, the melting point of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was predicted.
The melting point of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate 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 chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was predicted.
The boiling point of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was estimated to be 855.43 ˚C.
Density:
Based on prediction done using ACD/I-Lab 2.0, the density of chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo) benzenesulphonate was estimated to be 1.41 ± 0.1 g/cm3.
Particle size distribution (Granulometry):
The particle size distribution of Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate 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 Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate using MPBPVP v1.43 of EPI SUITE.
The estimated vapour pressure of the test substance Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate at 25 deg C was 5.19E-021 Pa.
Partition coefficient:
The octanol water partition coefficent (log Pow) of chemical sodium 4-({4-[(2-hydroxy-1-naphthyl)diazenyl]phenyl}diazenyl)benzenesulfonate (CAS no. 6406 -56 -0) was estimated to be 2.68 at temparature 25oC by using Estimation Program Interface (EPI suite) KOWWIN program V1.68. By this log Pow value chemical sodium 4-({4-[(2-hydroxy-1-naphthyl)diazenyl]phenyl}diazenyl)benzenesulfonateis considered as hydrophilic in nature.
Water solubility:
Based on available data from authoritative database and modelling database, the water solubility of test substance Sodium 4-(4-(2 -hydroxynaphthalenylazo)phenylazo)benzenesulphonate was determined to be at 25 deg C was 10 mg/l.
Thus on the basis of experimental value, the test substance Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was considered to be slightly soluble in water.
Surface tension:
Based on the prediction done by ACD labs Software (v12.1.0.50375), the surface tension for chemical Sodium 4-(4-(2 -hydroxynaphthalenylazo)phenylazo)benzenesulphonate was predicted to be 61.1 ± 7.0 dyne/cm
Flash point:
Based on the calculation done using scientifically verified and validated formulas / equations, the flash point of chemical Sodium 4-(4-(2 -hydroxynaphthalenylazo)phenylazo)benzenesulphonate was estimated to be 609.69 degree C. Thus, according to flash point value the chemical Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate was not classified as flammable.
Autoflammability:
Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate did not catch fire on being exposed to air at room temperature of 27 °C pressure of 966 hPa. This indicates that Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate is not auto-flammable.
Flammability:
Sodium 4-(4-(2-hydroxynaphthalenylazo)phenylazo)benzenesulphonate 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 Sodium 4-(4-(2 -hydroxynaphthalenylazo)phenylazo) benzenesulphonate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Sodium 4-(4-(2-hydroxynaphthalenylazo) phenylazo)benzenesulphonate 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.
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