Registration Dossier
Registration Dossier
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EC number: 271-524-7 | CAS number: 68583-95-9 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 16035:1.
Endpoint summary
Administrative data
Description of key information
Appearance:
The test chemical was observed to be a red colored powder.
Melting point:
The melting point determination of test chemical was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean decomposition temperature range was determine to be 271 – 275.5 °C at 965.55 hPa with a change in colour from red to black.
Boiling Point:
The study for boiling point does not need to be conducted because the chemical undergoes decomposition at temperature range of 271 – 275.5 °C.
Hence this endpoint was considered for waiver.
Density:
The mean density of test chemical was determined by following OECD Guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the test chemical was determined to be 1.583 g/cm3 at 20° C and 965.15 hPa.
Particle size distribution:
The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was found to be in the range of 150 microns to 10 microns.
Vapour pressure:
Modified Grain method (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of test chemical using MPBPVP v1.43 of EPI SUITE.
The estimated vapour pressure of test chemical at 25 deg C was 5.826187E-8 Pa
Partition coefficient
The partition Coefficient n-octanol/water of test chemical was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for testing of Chemicals. The reference substances were chosen according to estimated Pow range of the test substance and generalized calibration graph was prepared.
The reference substances Acetanilide, Phenoxyacetic acid, Benzophenone, Phenol, Biphenyl, Methyl benzoate, Benzyl Benzoate, 1,4- Dichlorobenzene, 1,2,4-Trichlorobenzene, Bromobenzene, 2,3-Dichloroaniline, 2,4-Dinitrophenol, 2,6-Dichlorobenzonitrile, Diphenylamine, 4-Methylbenzyl alcohol, Cinnamic Acid, Dodecanoic acid, Ethylbenzene, n-Butylbenzene, Naphthalene, Diphenyl ether, Allyl phenyl ether, DDT, were chosen having log Pow range from 1 to 6.5. The Log Pow value was determined to be 2.234 dimensionless at 25°C.
Water solubility:
The water solubility determination of test chemical was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of test chemical in water was determine to be 469.75 mg/L at 28°C. Thus the chemical is considered to be moderately 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. The test chemical is widely used as a food color, where surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The study does not need to be conducted because the flash point is only relevent to liquids and low melting point solids
Auto flammability:
Test chemical did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that test chemical is not auto-flammable.
Flammability:
Test chemical 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 test chemical is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus test chemical was considered non-flammable for chemical safety assessment.
Explosiveness:
In accordance with column 2 of Annex VII of the REACH regulation, the study does not need to be conducted since there are no chemical groups associated with explosive properties present in the molecule of test chemical. Thus, the chemical is most likely to be "Non explosive".
Oxidizing properties:
In accordance with column 2 of Annex VII of the REACH regulation, the test chemical is incapable of reacting exothermically with combustible materials on the basis of the chemical structure. It is an organic substance containing oxygen but no halogen atoms and these elements are not chemically bonded to nitrogen or oxygen. Thus, the chemcial is likely to be "Non-oxidising".
pH :
The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion in water was measured with the help of pH meter and it was observed to be 4.38 at 36 °C.
Additional information
Appearance:
The test chemical was observed to be a red colored powder.
Melting point:
The melting point determination of test chemical was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean decomposition temperature range was determine to be 271 – 275.5 °C at 965.55 hPa with a change in colour from red to black.
Boiling Point:
The study for boiling point does not need to be conducted because the chemical undergoes decomposition at temperature range of 271 – 275.5 °C.
Hence this endpoint was considered for waiver.
Density:
The mean density of test chemical was determined by following OECD Guideline 109 and according to the method adapted from ASTM D 854-02. The mean density of the test chemical was determined to be 1.583 g/cm3 at 20° C and 965.15 hPa.
Particle size distribution:
The particle size distribution of test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was found to be in the range of 150 microns to 10 microns.
Vapour pressure:
Modified Grain method (Mean of Antoine and Modified Grain methods) was used to estimate the vapour pressure of test chemical using MPBPVP v1.43 of EPI SUITE.
The estimated vapour pressure of test chemical at 25 deg C was 5.826187E-8 Pa
Partition coefficient
The partition Coefficient n-octanol/water of test chemical was determined by the Reverse Phase High Performance Liquid Chromatographic method according to OECD Guideline No. 117 for testing of Chemicals. The reference substances were chosen according to estimated Pow range of the test substance and generalized calibration graph was prepared.
The reference substances Acetanilide, Phenoxyacetic acid, Benzophenone, Phenol, Biphenyl, Methyl benzoate, Benzyl Benzoate, 1,4- Dichlorobenzene, 1,2,4-Trichlorobenzene, Bromobenzene, 2,3-Dichloroaniline, 2,4-Dinitrophenol, 2,6-Dichlorobenzonitrile, Diphenylamine, 4-Methylbenzyl alcohol, Cinnamic Acid, Dodecanoic acid, Ethylbenzene, n-Butylbenzene, Naphthalene, Diphenyl ether, Allyl phenyl ether, DDT, were chosen having log Pow range from 1 to 6.5. The Log Pow value was determined to be 2.234 dimensionless at 25°C.
Water solubility:
The water solubility determination of test chemical was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of test chemical in water was determine to be 469.75 mg/L at 28°C. Thus the chemical is considered to be moderately 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. The test chemical is widely used as a food color, where surface activity is not an important property. Hence this study was considered for waiver.
Flash point:
The study does not need to be conducted because the flash point is only relevent to liquids and low melting point solids.
Auto flammability:
Test chemical did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that test chemical is not auto-flammable.
Flammability:
Test chemical 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 test chemical is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus test chemical was considered non-flammable for chemical safety assessment.
Explosiveness:
In accordance with column 2 of Annex VII of the REACH regulation, the study does not need to be conducted since there are no chemical groups associated with explosive properties present in the molecule of test chemical. Thus, the chemical is most likely to be "Non explosive".
Oxidizing properties:
In accordance with column 2 of Annex VII of the REACH regulation, the test chemical is incapable of reacting exothermically with combustible materials on the basis of the chemical structure. It is an organic substance containing oxygen but no halogen atoms and these elements are not chemically bonded to nitrogen or oxygen. Thus, the chemcial is likely to be "Non-oxidising".
pH :
The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion in water was measured with the help of pH meter and it was observed to be 4.38 at 36 °C.
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