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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance:

On the basis of physical observation and using the sense of smell, tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was observed to be a solid.

Melting point:

Based on prediction done using MPBPVP v1.43,the melting point of tetrasodium 2-[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 - naphthyl]azo]benzene-1,4 -disulphonate was  estimated to be 350 Deg C.

Boiling Point:

The study does not need to be conducted because the substance is a solid which melts above 300°C. Based on prediction done using MPBPVP v1.43, the melting point of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 - naphthyl]azo]benzene-1,4 -disulphonate was  estimated to be 350 Deg C.

Density:

Based on prediction done using ACD/I-Lab 2.0, the density of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was estimated to be 1.93 g/cm3.

Particle size distribution:

The particle size distribution of test substance tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was determined by Granulometric analysis with Rotap sieve shaker. The particle size distribution was determine to be in the range of 150 micron to 25 micron.

Vapour pressure:

The estimated vapour pressure of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate at 25 deg C was 7.71E-34 Pa.

Partition coefficient

Based on the available data from modeling databases using the KOWWIN V1.68 programme, octanol water partition coefficient (log Pow) value of the test substance tetrasodium 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulphonato-1-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]benzene-1,4-disulphonate was estimated to be 3.24.

Water solubility:

The water solubility determination of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was done as per the shake flask method. The solubility was determine to be 75 mg/L at 29 Deg C. Thus the chemical is considered to be slightly soluble in water.

Surface tension:

In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. tetrasodium 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulphonato-1-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]benzene-1,4-disulphonate (CAS no. 70161-16-9) is used as a dye. For this use, surface activity is not an important property. Hence this study was considered for waiver.

Flash point:

The flash point of tetrasodium 2-[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate is greater than 250°C.

Auto flammability:

Tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate is not auto-flammable.

Flammability:

Tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate 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 tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was considered non-flammable.

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 substance is a solid.

Additional information

Appearance:

On the basis of physical observation and using the sense of smell, tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was observed to be a solid.

Melting point:

Based on the prediction done using the EPI Suite MPVPBP V1.43, the melting point of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonatewas predicted.

The melting point of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was estimated to be 350 ˚C.

Boiling Point:

The study does not need to be conducted because the substance is a solid which melts above 300°C. Based on prediction done using MPBPVP v1.43, the melting point of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 - naphthyl]azo]benzene-1,4 -disulphonate was  estimated to be 350 Deg C.

Density:

Based on prediction done using ACD/I-Lab 2.0, the density of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was estimated to be 1.93 g/cm3.

Particle size distribution:

The particle size distribution of test substance tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was determined by Granulometric analysis with Rotap sieve shaker. The particle size distribution was determine to be in the range of 150 micron to 25 micron.

Vapour pressure:

Modified Grain method was used to estimate the vapour pressure of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate using MPBPVP v1.43 of EPI SUITE.

The estimated vapour pressure of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate at 25 deg C was 7.71E-34 Pa.

Partition coefficient

Based on the available data from modeling databases using the KOWWIN V1.68 programme, octanol water partition coefficient (log Pow) value of the test substance tetrasodium 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulphonato-1-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]benzene-1,4-disulphonate was estimated to be 3.24.

Water solubility:

The water solubility determination of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was done as per the shake flask method. The solubility was determine to be 75 mg/L at 29 Deg C. Thus the chemical is considered to be slightly soluble in water.

Surface tension:

In accordance with column 2 of Annex VII of the REACH regulation, the study need only be conducted if surface activity is a desired property of the chemical. tetrasodium 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulphonato-1-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]benzene-1,4-disulphonate (CAS no. 70161-16-9) is used as a dye. For this use, surface activity is not an important property. Hence this study was considered for waiver.

Flash point:

The flash point determination of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was done as per the test guideline OECD 103. The method is closed cup method using Pensky Martin’s Flash Point Apparatus. The flash point of tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was determine to be greater than 250 Deg C.

Auto flammability:

Tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate is not auto-flammable.

Flammability:

Tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate 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 tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus tetrasodium 2 -[[4 -[[4 -[(4 -amino-6 -chloro-1,3,5 -triazin-2 -yl)amino]-5 -sulphonato-1 -naphthyl]azo]-7 -sulphonato-1 -naphthyl]azo]benzene-1,4 -disulphonate was considered non-flammable.

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 substance is a solid.