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EC number: 240-005-7 | CAS number: 15876-39-8
Endpoint summary
Administrative data
Description of key information
Appearance/physical state/colour
On the basis of physcial observation the chemical Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (Common Name: D&C Red 21 Lake) was observed to be a red color powder with a faint odour.
Melting point/freezing point
The test item Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] started decomposing at 334.5 °C - 338 °C with colour change from red to black. The decomposition range was found to be 334.5 °C -338 °C at 972.1 hPa, and hence it was not possible to determine the melting point.
Boiling point
The study does not need to be conducted because the substance is a solid which decomposes before boiling.
Density
The mean density of the chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] was determined to be 1.920 g/cm3 at 20 °C and at 968.9 hPa atmospheric pressure .
Particle size distribution (Granulometry)
The particle size distribution of chemical Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] was determined to be in the range of 150 micron to 10 micron.
Vapour pressure
This study does not need to be conducted if the observed melting point is >300 C. The chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] decomposes between 334.5 °C - 338 °C at 972.1 hPa atmospheric pressure without melting. Hence this endpoint was considered for waiver.
Partition coefficient
The partition Coefficient n-octanol/water ofdialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate](CAS No. 15876-39-8)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 structural similarity with the test substance. The reference substances were Phenol, Benzene, Bromobenzene, 1,4 dichlorobenzene, 1,2,4 Trichlorobenzene and 2,6 Diphenylpyridine having Pow value ranging from 1.5 to 4.9.The Log Pow value was determined to be 4.777 ± 0.366 at 25°C.
Water solubility
The water solubility of chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] was determined to be 0.1431 mg/L at 24°C.
Surface tension
In accordance with column 2 of Annex VII of the REACH regulation, this testing needs to be carried out only if surface activity is a desired property of the chemical. The chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (Common name: D&C Red 21 Lake) is used mostly as a pharmaceutical color. For this use, surface activity is not a desired property and hence this end point was considered for waiver.
Flash point
The flash point of Di aluminium tris [2-(2, 4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS No.15876-39-8) was experimentally determined to be greater than 250 °C, at 972.3 hPa atmospheric pressure.
Auto flammability
Di aluminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] did not catch fire on being exposed to air at room temperature of 27°C and atmospheric pressure of 966 hPa. Also the self ignition temperature is estimated ot be greater than 300 degree celcious. This indicates that Dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] is not auto-flammable.
Flammability
Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] 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 Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl) benzoate] 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 the organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure doesnot need to be applied.
Thus, for the purpose of chemical safety assessment, the chemical is considered as "Non Oxidising".
pH
The pH of 1% w/v aqueous dispersion was measured with the help of pH meter and it was observed to be 4.59 at 28.3 °C.
Viscosity
The study does not need to be conducted because the substance is a solid
Additional information
Appearance/physical state/colour
On the basis of physcial observation the chemical Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (Common Name: D&C Red 21 Lake) was observed to be a red color powder with a faint odour.
Other supporting data from Material safety data sheet, also suggested the appearance of chemical Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (Common Name: D&C Red 21 Lake) was observed to be red colored powder with characteristic odour.
Melting point/freezing point
The melting point determination of Test itemDi aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate](CAS No. 15876-39-8) was done as per the test guideline OECD 102. The method followed was according to Capillary/metal block. The test item started decomposing at 334.5 °C - 338 °C with colour change from red to black . The decomposition range was found to be 334.5 °C -338 °C at 972.1 hPa, hence it was not possible to determine the melting point.
Boiling point
The study does not need to be conducted because the substance is a solid which decomposes before boiling.
Density
The mean density of test item dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS no. 15876-39-8 ) was determined following OECD Guideline 109 and according to the method adapted from ASTM D854-02 using glass pyknometer.
The mean density of the chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] was determined to be 1.920 g/cm3 at 20 °C and at 968.9 hPa atmospheric pressure .
Particle size distribution (Granulometry)
The particle size distribution of chemical Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS No. 15876-39-8) was determined by granulometric analysis with rotap sieve shaker.
The particle size distribution of chemical Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] was determined to be in the range of 150 micron to 10 micron. Thus, it can be concluded that the majority of the particles are not of inhalable size.
Vapour pressure
This study does not need to be conducted if the observed melting point is >300 C. The chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] decomposes between 334.5 °C - 338 °C at 972.1 hPa atmospheric pressure without melting. Hence this endpoint was considered for waiver.
Partition coefficient
The partition Coefficient n-octanol/water ofdialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS No. 15876-39-8) 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 structural similarity with the test substance. The reference substances were Phenol, Benzene, Bromobenzene, 1,4 dichlorobenzene, 1,2,4 Trichlorobenzene and 2,6 Diphenylpyridine having Pow value ranging from 1.5 to 4.9.The Log Pow value was determined to be 4.777 ± 0.366 at 25°C.
Water solubility
The water solubility determination of chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS No. 15876-39-8) was done as per the OECD guideline 105, by using spectrophotometric analytical method as per OECD 101.
The solubility of chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS:15876-39-8) in water was determined to be 0.1431 mg/L at 24°C.
Thus according to the obtained value the chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] was considered to be slightly soluble in water.
Surface tension
In accordance with column 2 of Annex VII of the REACH regulation, this testing needs to be carried out only if surface activity is a desired property of the chemical. The chemical dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (Common name: D&C Red 21 Lake) is used mostly as a pharmaceutical color. For this use, surface activity is not a desired property and hence this end point was considered for waiver.
Flash point
The flash point determination of Di aluminium tris [2-(2, 4, 5, 7-tetrabromo-6-oxido-3-oxoxanthen-9-yl) benzoate] (CAS No. 15876-39-8) was done following closed cup method using Pensky-Martens flash point apparatus. The flash point was found to be greater than 250°C at 972.3 hPa. Based on criteria mentioned in CLP regulation the chemical has flash point > 60 degree C GHS criteria not met, hence the substance was considered to be non-flammable.
Auto flammability
Di aluminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] did not catch fire on being exposed to air at room temperature of 27°C and atmospheric pressure of 966 hPa. Also the self ignition temperature is estimated ot be greater than 300 degree celcious. This indicates that Dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] is not auto-flammable.
Flammability
Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] 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 Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl) benzoate] 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 the organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure doesnot need to be applied.
Thus, for the purpose of chemical safety assessment, the chemical is considered as "Non Oxidising".
pH
The pH determination of test item Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CAS No. 15876-39-8) was done following OECD guideline 122. pH of 1 % w/v aqueous dispersion was measured with the help of pH meter and it was observed to be 4.59 at temperature 28.3 °C.
From the obtained value it confirmed that the 1% w/v aqueous dispersion of Di aluminium tris [2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl) benzoate] was considered to be acidic in nature.
Viscosity
The study does not need to be conducted because the substance is a solid
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