Registration Dossier
Registration Dossier
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EC number: 241-409-6 | CAS number: 17372-87-1
Endpoint summary
Administrative data
Description of key information
Appearance:
On the basis of physical observation , test chemical was brown colored powder in appearance.
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 item turns black from red but does not melt.The test was conducted in replicates and Mean decomposition temperature was determine to be 255 °C -270°C at 977.9hPa
Boiling Point:
According to Column II of Annex VII, the boiling point study does not need to be conducted for solids which either melt above 300 °C or decompose before boiling.
Test substance is a solid at room temperature and it is reported to decompose at temperature range of 255 °C -270°C without melting.Hence, it is not feasible to determine boiling point and the endpoint was considered for waiver
Density:
The density of test chemical was determined following OECD Guideline 109 and according to the Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus. The pour density and tapped density of test item is was determine to be 0.7813 g/cm³ and 0.9696 g/cm³ at 27.05°C and 978.5 hPa.
Particle size distribution:
The particle size distribution of test test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
Vapour pressure:
The estimated vapor pressure of test chemcial was 2.54E-020 mm Hg = 3.39E-018 Pa at 25 deg C.
Partition coefficient:
Water solubility:
The water solubility determination of test item 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 131430 mg/L at 25°C.
Thus test is considered to be very soluble in water.
Solubility in organic solvents / fat solubility:
The solubility of test chemical was determined using various solvents.
Test chemical was determined to be slighlty soluble in ethanol, methanol and insoluble in ether.
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. Test chemical is a fluorescent dye used as a biological stain. For these uses, surface activity is not a desired property and hence this end point was considered for waiver.
Flash point:
The flash point determination of test chemical was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determined to be 191.6°C at 977.3hPa. Based on criteria mentioned in CLP regulation the chemical has flash point >than 60 degree C hence test chemical was considered to be non-flammable.
Auto flammability:
Test chemical did not catch fire on being exposed to air at room temperature of 27°C and atmospheric 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.
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 incapable of reacting exothermically with combustible materials. It is an organic substance containing oxygen and bromine (halogen atoms) and these elements are not chemically bonded to nitrogen or oxygen. Thus, the chemical is likely to be "Non-oxidising".
pH:
The pH determination of test item was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 6.55 at 29 °C.
Viscosity:
In accordance with Section 2 of REACH Annex XI, information requirement section 7.17, this study cannot be conducted on solid materials or gases. According to ECHA Chapter 7 guidance, viscosity measurement is only relevant to liquids. Test chemical is a brown colored powder.Hence this study can be considered for waiver.
Additional information
Appearance:
The basis of physical observation , test chemical was brown colored powder in appearance.
Other supporting studies from reliable sources such as authoritative database and handbooks also suggests that test chemical was odourless, Red crystals or brownish red powder in appearance.
Hence,the appearance of test chemical was considered as brown 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 item turns black from red but does not melt.The test was conducted in replicates and Mean decomposition temperature was determine to be 255 °C -270°C at 977.9 hPa.
Other supporting studies from reliable sources such as authoritative database and handbboks the, melting point of test chemical was determined to be in the range of 295 degree C to 296 degree C and decomposition temperature was reported to be at 300 degree C.
As the data from lab has K1 reliability and the test was performed using OECD guidelines which has the value of decomposition temperature as 255 degree C to 270 degree C thus considered as key study.
Boiling Point:
According to Column II of Annex VII, the boiling point study does not need to be conducted for solids which either melt above 300 °C or decompose before boiling.
Test substance is a solid at room temperature and it is reported to decompose at temperature range of 255 °C -270°C without melting.Hence, it is not feasible to determine boiling point and the endpoint was considered for waiver
Density:
The density of test chemical was determined following OECD Guideline 109 and according to the Pour density and tapped density of powders” recommended in The International Pharmacopoeia, Fourth Edition, 2014 using bulk density apparatus. The pour density and tapped density of test item is was determine to be 0.7813 g/cm³ and 0.9696 g/cm³ at 27.05°C and 978.5 hPa.
Particle size distribution:
The particle size distribution of test test chemical was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.
Vapour pressure:
MPBPVP v1.43 was used to estimate the vapor pressure of test chemical.
The estimated vapor pressure of test chemcial was 2.54E-020 mm Hg = 3.39E-018 Pa at 25 deg C.
Partition coefficient:
Water solubility:
The water solubility determination of test item 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 131430 mg/L at 25°C.
Thus test is considered to be very soluble in water.
Data from reliable databases suggests that the water solubility of test chemical was greater than or equal to 100 mg/mL at 70° F or (100000 mg/l at 21.6667 deg C)
Based on this value, test chemical can be considered as soluble in water.
Solubility in organic solvents / fat solubility:
The solubility of test chemical was determined using various solvents.
Test chemical was determined to be slighlty soluble in ethanol, methanol and insoluble in ether.
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. Test chemical is a fluorescent dye used as a biological stain. For these uses, surface activity is not a desired property and hence this end point was considered for waiver.
Flash point:
The flash point determination of test chemical was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was determined to be 191.6°C at 977.3hPa. Based on criteria mentioned in CLP regulation the chemical has flash point >than 60 degree C hence test chemical was considered to be non-flammable.
Auto flammability:
Test chemical did not catch fire on being exposed to air at room temperature of 27°C and atmospheric 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.
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 incapable of reacting exothermically with combustible materials. It is an organic substance containing oxygen and bromine (halogen atoms) and these elements are not chemically bonded to nitrogen or oxygen. Thus, the chemical is likely to be "Non-oxidising".
pH:
The pH determination of test item was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 6.55 at 29 °C.
Viscosity:
In accordance with Section 2 of REACH Annex XI, information requirement section 7.17, this study cannot be conducted on solid materials or gases. According to ECHA Chapter 7 guidance, viscosity measurement is only relevant to liquids. Test chemical is a brown colored powder.Hence this study can be considered for waiver.
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