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EC number: 241-806-4 | CAS number: 17852-98-1
Endpoint summary
Administrative data
Description of key information
Appearance:
On the basis of physical observation and using the sense of smell, barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate was observed to be a solid red powder.
Melting point:
The melting point determination of Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]- 2-naphthoate (CAS No. 17852-98-1) was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and Mean decomposition temperature was determine to be 312.2-328.2°C at 970.8hPa.
Boiling Point:
The study does not need to be conducted because the substance is a solid which decomposes before boiling. The melting point determination of Test item Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean decomposition temperature was determine to be 312.2 -328.2°C at 970.8 hPa.
Density:
The density of test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1)was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using pyknometer.The meandensity of test item was determine to be 1.8108 g/cm³at 20°C and 971.4 hPa.
Particle size distribution:
The particle size distribution of test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2- naphthoate (CAS No. 17852-98-1 ) 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 barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate at 25 deg C was 1.75E-16 Pa.
Partition coefficient
Based on the available data from modelling database EPI suite using the KOWWIN V1.68 programme, the partition coefficient (logPOW) of the test chemicalbarium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate was estimated to be 5.53. On the basis of this estimated value, substance barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonato phenyl)diazenyl]-2 -naphthoate can be considered to be hydrophobic in nature.
Water solubility:
The estimated water solubility of barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate at 25 deg C was 0.00107 mg/l.
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. Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1) is used as a color in drugs and cosmetics.. For this use, surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The flash point determination of Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1)was done following closed cup method using Pensky-Martens flash point apparatus. flash point was determine to be greater than 250 °C at 970.3hPa.
Auto flammability:
Barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate is not auto-flammable.
Flammability:
Barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate 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 barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate 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.
pH:
The pH determination of test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CAS No 17852-98-1) was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 9.80 at 24.4 °C.
Additional information
Appearance:
On the basis of physical observation and using the sense of smell, barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate was observed to be a solid red powder.
Melting point:
The melting point determination of Test item Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean decomposition temperature was determine to be 312.2 -328.2°C at 970.8 hPa.
Boiling Point:
The study does not need to be conducted because the substance is a solid which decomposes before boiling. The melting point determination of Test item Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The Mean decomposition temperature was determine to be 312.2 -328.2°C at 970.8 hPa.
Density:
The density of test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1)was determined following OECD Guideline 109 and according to the Adapted from ASTM D854-02 using pyknometer.The meandensity of test item was determine to be 1.8108 g/cm³at 20°C and 971.4 hPa.
Particle size distribution:
The particle size distribution of test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2- naphthoate (CAS No. 17852-98-1 ) 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 (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate using MPBPVP v1.43 of EPI SUITE.
The estimated vapour pressure of barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate at 25 deg C was 1.75E-16 Pa.
Partition coefficient
Based on the available data from modelling database EPI suite using the KOWWIN V1.68 programme, the partition coefficient (logPOW) of the test chemicalbarium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate was estimated to be 5.53. On the basis of this estimated value, substance barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonato phenyl)diazenyl]-2 -naphthoate can be considered to be hydrophobic in nature.
Water solubility:
WSKOW v1.42 was used to estimate the water solubility of barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate.
The estimated water solubility of barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate at 25 deg C was 0.00107 mg/l.
Based on the estimated value, barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate was insoluble 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. Barium 3-hydroxy-4-[(4-methyl-2- sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1) is used as a color in drugs and cosmetics.. For this use, surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The flash point determination of Test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2- naphthoate (CAS No. 17852-98-1 )was done. The method was closed cup method using Pensky-Martens Flash Point Apparatus. The flash point of the test item was determine to be greater than 250 °C at 970.3 hPa.
Auto flammability:
Barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that barium 3-hydroxy-4-[(4-methyl-2-sulfonatophenyl)diazenyl]-2-naphthoate is not auto-flammable.
Flammability:
Barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate 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 barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus barium 3 -hydroxy-4 -[(4 -methyl-2 -sulfonatophenyl)diazenyl]-2 -naphthoate 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.
pH:
The pH determination of test item Barium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CAS No. 17852-98-1 ) was done as per the test guideline OECD 122. The mean pH of the test dispersion was determined with the help of digital pH meter. The mean pH was determine to be 9.80 at 24.4 °C.
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