Registration Dossier
Registration Dossier
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EC number: 500-038-2 | CAS number: 25322-68-3 1 - 4.5 moles ethoxylated
Endpoint summary
Administrative data
Description of key information
Appearance:
On the basis of physical observation and using the sense of smell, test chemicalwas observed to be a pale yellow organic liquid.
Melting point:
The Freezing point determination of test chemical was done using crushed ice + salt. No freezing was observed up to -14.08°C. Hence, the freezing point was inferred to be less than -14.08 °C at pressure 973.5 hPa.
Boiling Point:
The boiling point determination of Test item was done as per the test guideline OECD 103. The method followed was according to Siwoloboff. The mean boiling point was determine to be 205.7°C at 977.6 hPa.
Density:
The density of Test item was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test item was determine to be 1.1160 g/cm³ at 20°C and 975.5hPa.
Particle size distribution:
Granulometry (particle size distribution) is a property that is relevant only to solids. Since test chemical is a liquid substance this testing was not scientifically possible and hence this end point was considered for waiver.
Vapour pressure:
Vapour pressure of test chemical is determine to be less than 0.1 hPa at temperature 20 Deg C.
Partition coefficient:
The experimental value of octanol water partition co-efficient (log Pow) of test chemical is -0.698 at 30 degC and pH of 6.44.This value indicates that the substance is hydrophilic in nature.
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 256.0838 g/L at 25°C.
Thus test chemical is considered to be very soluble in water.
Solubility in organic solvents / fat solubility:
The experimental value of solubility of test chemical in ethanol at temperature of 30 deg C was determine to be 100000 mg/L indicating that test chemical is very soluble in ethanol.
The experimental value of solubility of test chemical ether at 30 deg C was determine to be 50000 mg/L indicating that test chemical is very soluble in petroleum ether.
Surface tension:
Surface tension of test chemical was determine to be 44.5 mN/m at temperature 25 deg C.
Flash point:
The flash point determination of Test item was done. The method was closed cup method using Pensky-Martens Flash Point Apparatus. The mean flash point of the test item was determine to be 138.6°C at pressure 976.4 hPa.
Auto flammability:
The auto ignition temprature of test chemical was determine to be 360 deg C.
Flammability:
From the experimental values of flammability, test chemical ignited when the flame of bunsen burner having temperature of 950 degC was brought in contact with it. Thus it can be concluded that test chemical is flammable only at high temperature of about 950 deg C. However since such high temperatures are not found under normal circumstances of transportation and use, the substance was considered non-flammable.
Explosiveness:
According to theoretical considerations based on chemical structure, test chemical does not possess explosive properties. The reason for this is there are no chemical groups associated with explosive properties in test chemical. Thus, as per column 2 of Annex VII this end point was considered for waiver.
Oxidizing properties:
Test chemical was not determine to have oxidising property.
Stability in organic solvents and identity of relevant degradation products:
Test chemical was determine to be unstable in organic solvent dichloro methane and degradation products were formed after 24 hours as evident from the GC-MS chromatogram obtained at 0 hours and that obtained after 24 hours.
pH:
The pH determination of test item was done as per the test guideline OECD 122. The mean pH of the test solution was
determined with the help of digital pH meter. The mean pH was determine to be 4.78 at 26 °C.
1% by volume solution of test chemical was determine to exhibit a pH of 3.00 at 25 deg C.Thus 1% by volume solution of test chemical is acidic in nature.
Dissociation constant:
The average experimental pKa value for test chemical was determine to be 0.00000442,at 30 degC indicating that it has dissociation properties.
The average experimental pKa value for test chemical was determine to be 0.000005523,at 30 degC indicating that it has dissociation properties.
Viscosity:
The viscosity determination of Test item was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 259.7452 mm²/sec and 191.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C was 289.8756 mPa.S and 213.9059 mPa.S, respectively.
Viscosity of test chemical at temperature of 30 deg C was determine to be 31.80372 m Pa.s (dynamic).
Additional information
Appearance:
On the basis of physical observation and using the sense of smell, test chemicalwas observed to be a pale yellow organic liquid.
From other reliable sources test chemical was concluded to be colourless organic liquid.
Melting point:
The Freezing point determination of test chemical was done using crushed ice + salt. No freezing was observed up to -14.08°C. Hence, the freezing point was inferred to be less than -14.08 °C at pressure 973.5 hPa.
From other reliable sources & authoritative databases freezing point of test chemical was determine to be -10 °C & in the range between -63 to -10 °C.
Boiling Point:
The boiling point determination of Test item was done as per the test guideline OECD 103. The method followed was according to Siwoloboff. The mean boiling point was determine to be 205.7°C at 977.6 hPa.
From other authoritative databases boiling point of test chemical is determine to be greater than 200 Deg C.
Density:
The density of Test item was determined following OECD guideline 109 and according to the Indian standard method for determination of density of liquids [IS 4730:1994 (Reaffirmed 2010)]. The mean density of the test item was determine to be 1.1160 g/cm³ at 20°C and 975.5hPa.
From other reliable sources & authoritativa databases density of test chemical was concluded to be 1.127 g/cm³ at temperature 25°C, 1.13 g/cm3 at temperature 20 deg C & in the range between 1.11 to 1.14 g/cm3 at temperature 20 deg C.
Particle size distribution:
Granulometry (particle size distribution) is a property that is relevant only to solids. Since test chemical is a liquid substance this testing was not scientifically possible and hence this end point was considered for waiver.
Vapour pressure:
Vapour pressure of test chemical is determine to be less than 0.1 hPa at temperature 20 Deg C.
From other sources vapour pressure of test chemical is determine to be less than 10 hPa at temperature 20 Deg C.
Partition coefficient:
Following studies have been conducted to determine log Pow of test chemical.
In first study the experimental value of octanol water partition co-efficient (log Pow) of test chemical is -0.698 at 30 degC and pH of 6.44.
In another study the experimental value of octanol water partition co-efficient (log Pow) of test chemical is -0.958 at 30 degC and pH of 4.50.
These log Pow values indicate that the substance is hydrophilic in nature.
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 256.0838 g/L at 25°C.
Thus test chemical is considered to be very soluble in water.
Solubility in organic solvents / fat solubility:
The experimental value of solubility of test chemical in ethanol at temperature of 30 deg C was determine to be 100000 mg/L indicating that test chemical is very soluble in ethanol.
The experimental value of solubility of test chemical ether at 30 deg C was determine to be 50000 mg/L indicating that test chemical is very soluble in petroleum ether.
Surface tension:
Surface tension of test chemical was determine to be 44.5 mN/m at temperature 25 deg C.
Flash point:
The flash point determination of Test item was done. The method was closed cup method using Pensky-Martens Flash Point Apparatus. The mean flash point of the test item was determine to be 138.6°C at pressure 976.4 hPa.
Auto flammability:
The auto ignition temprature of test chemical was determine to be 360 deg C.
Flammability:
From the experimental values of flammability, test chemical ignited when the flame of bunsen burner having temperature of 950 degC was brought in contact with it. Thus it can be concluded that test chemical is flammable only at high temperature of about 950 deg C. However since such high temperatures are not found under normal circumstances of transportation and use, the substance was considered non-flammable.
Explosiveness:
According to theoretical considerations based on chemical structure, test chemical does not possess explosive properties. The reason for this is there are no chemical groups associated with explosive properties in test chemical. Thus, as per column 2 of Annex VII this end point was considered for waiver.
Oxidizing properties:
Test chemical was not determine to have oxidising property.
Stability in organic solvents and identity of relevant degradation products:
Test chemical was determine to be unstable in organic solvent dichloro methane and degradation products were formed after 24 hours as evident from the GC-MS chromatogram obtained at 0 hours and that obtained after 24 hours.
pH:
The pH determination of test item was done as per the test guideline OECD 122. The mean pH of the test solution was
determined with the help of digital pH meter. The mean pH was determine to be 4.78 at 26 °C.
1% by volume solution of test chemical was determine to exhibit a pH of 3.00 at 25 deg C.Thus 1% by volume solution of test chemical is acidic in nature.
Dissociation constant:
The average experimental pKa value for test chemical was determine to be 0.00000442,at 30 degC indicating that it has dissociation properties.
The average experimental pKa value for test chemical was determine to be 0.000005523,at 30 degC indicating that it has dissociation properties.
Viscosity:
The viscosity determination of Test item was done as per the test guideline OECD 114 using Redwood Viscometer No. 1. Kinematic viscosity (experimental) of Test item at 20°C and 40°C is 259.7452 mm²/sec and 191.6720 mm²/s, respectively. Dynamic viscosity (calculated) of Test item at 20°C and 40°C was 289.8756 mPa.S and 213.9059 mPa.S, respectively.
Viscosity of test chemical at temperature of 30 deg C was determine to be 31.80372 m Pa.s (dynamic).
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