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EC number: 231-679-3 | CAS number: 7681-82-5
Endpoint summary
Administrative data
Description of key information
Appearance:
On the basis of physical observation and using the sense of smell,test chemical was found to be a white crystalline inorganic solid substance with no odour at 20 degC and 975 hPa.
Melting point:
The melting point of test chemical by the capillary method was determined to be 659 degC at an atmospheric pressure of 975 hPa . There was no decomposition and sublimation observed .
Boiling point:
The boiling point of test chemical is observed to be 1304 degree C.
Density:
The density of test chemical by the mass by volume method was determined to be 3.5 g/cm3 at room temperature of 25 °C.
Particle size distribution: The particle size distribution (granulometry) of test chemical by the sieve analysis method was found to be in the range of 75 micrometer to 500 micrometer. Majority of the particles were found to be in the size more than -180+150 (39.49%) micrometer in size.
Vapour pressure:
The experimental value of the vapour pressure of test chemical was determined to be 133.32 pas at 767 degC.
Partition coefficient:
The experimental value of octanol water partition co-efficient (log Pow) of test chemical is -1.301 at 25 degC. This value indicates that test substance is hydrophillic in nature.
Water Solubility:
The experimental value of the water solubility of test chemical was determined to be 165000 mg/L at 25 degC indicating that the chemical is very soluble in water.
Solubility in organic solvent:
The experimental value of solubility of test chemical in alcohol,Petroleum etherat 25 degC is determined to be 330000 mg/L and 1500 mg /L indicating that this substance is very soluble in alcohol,petroleum ether The solubility of test chemical is also tested in acetone was it was determined to be soluble in acetone.
Surface tension:
The study does not need to be conducted because surface activity is not a desired property of the material.
Flash point:
In accordance with column 2 of REACH Annex VII, information requirement section 7.9, this study does not need to be conducted as the substance is inorganic. Therefore this study was considered for waiver.
Auto flammability:
The test substance do not have evidence of self heating. So, the property of auto-flammability will not be applicable for the substance. Thus it inferes that the substance is non autoflammable in nature.
Flammability:
From the experimental values of flammability, test chemical does not ignited when the flame of bunsen burner having temperature of 950°C was brought in contact with it. Thus it can be concluded that test chemical is flammable only at high temperature of about 950°C. However since such high temperatures are not found under normal circumstances of transportation and use, test chemical 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:
According to redox titration considerations, test chemical does not possess oxidising properties. Thus, the substance is unlikely to cause or contribute to the combustion of other material during transport, storage or use.
Stability in organic solvents:
The study does not need to be conducted because the substance is inorganic
pH:
1% by volume solution of test chemical was determined to exhibit a pH of 8.2 at 26 degC. Thus 1% by volume solution of test substance is basic in nature.
Dissociation constant:
The experimental pKa value for test chemical was determined to be 0.0668 at 25 degC indicating that it has dissociation properties.
Viscosity:
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,test chemical was found to be a white crystalline inorganic solid substance with no odour at 20 degC and 975 hPa.
Other supporting study from handbook also suggests that the test chemical was observed to be a colourless crystalline inorganic solid substance with no odour.
Melting point:
The melting point of test chemical by the capillary method was determined to be 659 degC at an atmospheric pressure of 975 hPa . There was no decomposition and sublimation observed.
Other supporting studies from various reliable sources such as authoritative database and handbook also indicates that the melting point of test chemical is in the range of 651 degree C to 662 degree C
Boiling point:
The boiling point of test chemical is observed to be 1304 degree C.
From other experimental study reports it is observed thatboiling point of test chemical is greater than 300 °C. at 965.7 hPa.
Density:
The density of test chemical by the mass by volume method was determined to be 3.5 g/cm3 at room temperature of 25 °C.
Other supporting data from reliable handbook also suggests that ,the density of test chemical was determined to be 3.67 g/cm3 at 25 degC.
Also from other supporting experimental results, the mean pour density and tapped density of the test item was found to be 1.8185 g/cm³ and 1.8185 g/cm³at 25°C and 969.7 hPa.
Particle size distribution:The particle size distribution (granulometry) of test chemical by the sieve analysis method was found to be in the range of 75 micrometer to 500 micrometer. Majority of the particles were found to be in the size more than -180+150 (39.49%) micrometer in size.
Vapour pressure:
The experimental value of the vapour pressure of test chemical was determined to be 133.32 pas at 767 degC.
Partition coefficient:
The experimental value of octanol water partition co-efficient (log Pow) of test chemical is -1.301 at 25 degC. This value indicates that test substance is hydrophillic in nature.
Water Solubility:
The experimental value of the water solubility of test chemical was determined to be 165000 mg/L at 25 degC indicating that the chemical is very soluble in water.
Solubility in organic solvent:
The experimental value of solubility of test chemical in alcohol,Petroleum etherat 25 degC is determined to be 330000 mg/L and 1500 mg /L indicating that this substance is very soluble in alcohol,petroleum ether The solubility of test chemical is also tested in acetone was it was determined to be soluble in acetone.
Surface tension:
The study does not need to be conducted because surface activity is not a desired property of the material.
Flash point:
In accordance with column 2 of REACH Annex VII, information requirement section 7.9, this study does not need to be conducted as the substance is inorganic. Therefore this study was considered for waiver.
Auto flammability:
The test substance do not have evidence of self heating. So, the property of auto-flammability will not be applicable for the substance. Thus it inferes that the substance is non autoflammable in nature.
Flammability:
From the experimental values of flammability, test chemical does not ignited when the flame of bunsen burner having temperature of 950°C was brought in contact with it. Thus it can be concluded that test chemical is flammable only at high temperature of about 950°C. However since such high temperatures are not found under normal circumstances of transportation and use, test chemical 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:
According to redox titration considerations, test chemical does not possess oxidising properties. Thus, the substance is unlikely to cause or contribute to the combustion of other material during transport, storage or use.
Stability in organic solvents:
The study does not need to be conducted because the substance is inorganic
pH:
1% by volume solution of test chemical was determined to exhibit a pH of 8.2 at 26 degC. Thus 1% by volume solution of sodium iodide is basic in nature.
From other reliable sources and experimental reports, the pH of test substance is determined to be in the range of 6 - 9.5.
Dissociation constant:
The experimental pKa value for test chemical was determined to be 0.0668 at 25 degC indicating that it has dissociation properties.
Viscosity:
The study does not need to be conducted because the substance is a solid
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