Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance

On the basis of available data from study report, the appearance of test chemical was observed to be an organic light yellow to beige powder.

 

Melting point

Based on the available data from study report,the melting point of test chemical was determined. The study was performed in accordance with the OECD Guideline 102 (Melting point / Melting Range). The method followed was according to Capillary/metal block. The test was conducted in replicates and mean melting point of the test chemical was determined to be in the range between 78.8 - 81°C at 970.2 hPa.

 

Boiling Point

Based on the available data study from study report, the boiling point of test chemical was determined. The study was performed in accordance with the OECD Guideline 103 (Boiling Point). The method followed was according to Siwoloboff. The test was conducted in replicates and mean boiling point was determined to be 237.6°C at 97070 hPa.

 

Density

Based on the available data from study report,the density of test chemical was determined following OECD Guideline 109 (Density of Liquids and Solids) and according to the method adapted from ASTM D 854-02 using glass pyknometer. The mean density of test item was determined to be 0.7859 g/cm³ at 20°C and 971.2 hPa.

 

Particle size distribution

On the basis of the available data from study report,the particle size distribution of 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 53 micron.

 

Vapour pressure

On the basis of the available data from authoritative databases,the estimated vapour pressure of the test chemical at 25 deg C was 0.00351 Pa.

 

Partition coefficient

Based on the available data from study report,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. A test item solution was prepared by accurately weighing 4 mg of test item and diluted with Methanol up to 10 ml. Thus, the test solution concentration was 400 mg/l. The pH of test substance was 4.1. The reference substances were chosen according to functional similarity with the test substance and calibration graph was prepared. The reference substances were Acetophenone, Benzophenone, Phenol, Benzene, 2,6-Diphenylpyridine, 4-Acetylpyridine, 2-Nitrophenol, Nitrobenzene, Naphthalene having Pow value ranging from 0.5 to 4.9. The Log Pow value was determined to be 2.207 ± 0.001 at 25°C. On the basis of this value, test chemical can be considered to be hydrophilic in nature.

 

Water solubility

Based on the available data from study report,the water solubility determination of test chemical was done as per the OECD Guideline 105 (Water Solubility) by spectrophotometric analytical method as per OECD 101. The solubility of test chemical in water was determined to be 409.8 mg/L at 25°C. On the basis of this value, test chemical was considered to be moderately soluble in water.

 

Surface tension

In accordance with column 2 of Annex VII of the REACH regulation, testing for this end point is scientifically not necessary and does not need to be conducted because surface activity is not a desired property of the material.

 

Flash point

Testing for this end pointis technically not feasible and does not need to be conducted because the flash point is only relevant to liquids and low melting point solids.

 

Auto 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 auto flammable at high temperature.

 

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.

 

Explosiveness

In accordance with column 2 of Annex VII of the REACH regulation, testing for this end point is scientifically not necessary and 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 there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.

 

pH

Based on the available data from study report,the pH of test chemical was determined. The study was performed in accordance with OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 3.38 at 27.5°C. Thus, test chemical is considered to be acidic in nature.

 

Viscosity

Testing for this end pointis technically not feasible and does not need to be conducted because the test chemical is a solid.

Additional information

Appearance

On the basis of available data from study report, the appearance of test chemical was observed to be an organic light yellow to beige powder.

Additional study from authoritative database indicates the appearance of test chemical as beige crystalline powder compound.

In a supporting study fromhandbook, the test chemical was observed as powder or leaflet compound.

 

Melting point

Based on the available data from study report,the melting point of test chemical was determined. The study was performed in accordance with the OECD Guideline 102 (Melting point / Melting Range). The method followed was according to Capillary/metal block. The test was conducted in replicates and mean melting point of the test chemical was determined to be in the range between 78.8 - 81°C at 970.2 hPa.

Additional study from handbook and authoritative databases indicates that the melting point of test chemical as 81°C.

In a supporting study fromauthoritative database & another study from handbook and authoritative database,the melting point of test chemical was determined to be ranges from 73 to 76°C.

 

Boiling Point

Based on the available data in a key study from study report, the boiling point of test chemical was determined. The study was performed in accordance with the OECD Guideline 103 (Boiling Point). The method followed was according to Siwoloboff. The test was conducted in replicates and mean boiling point was determined to be 237.6°C at 97070 hPa.

Additional supporting study from handbook and authoritative databases indicates the boiling point of test chemical as 148°C at 50-80 Pa.

 

Density

Based on the available data from study report,the density of test chemical was determined following OECD Guideline 109 (Density of Liquids and Solids) and according to the method adapted from ASTM D 854-02 using glass pyknometer. The mean density of test item was determined to be 0.7859 g/cm³ at 20°C and 971.2 hPa.

 

Particle size distribution

On the basis of the available data from study report,the particle size distribution of 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 53 micron.

 

Vapour pressure

On the basis of the available data from authoritative databases,the estimated vapour pressure of the test chemical at 25 deg C was 0.00351 Pa.

Another modelling databases indicates that the vapour pressure of the test chemical as 0.00297 Pa at 25 deg C.

 

Partition coefficient

Based on the available data from study report,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. A test item solution was prepared by accurately weighing 4 mg of test item and diluted with Methanol up to 10 ml. Thus, the test solution concentration was 400 mg/l. The pH of test substance was 4.1. The reference substances were chosen according to functional similarity with the test substance and calibration graph was prepared. The reference substances were Acetophenone, Benzophenone, Phenol, Benzene, 2,6-Diphenylpyridine, 4-Acetylpyridine, 2-Nitrophenol, Nitrobenzene, Naphthalene having Pow value ranging from 0.5 to 4.9. The Log Pow value was determined to be 2.207 ± 0.001 at 25°C. On the basis of this value, test chemical can be considered to be hydrophilic in nature.

 

Water solubility

Based on the available data from study report,the water solubility determination of test chemical was done as per the OECD Guideline 105 (Water Solubility) by spectrophotometric analytical method as per OECD 101. The solubility of test chemical in water was determined to be 409.8 mg/L at 25°C. On the basis of this value, test chemical was considered to be moderately soluble in water.

 

Surface tension

In accordance with column 2 of Annex VII of the REACH regulation, testing for this end point is scientifically not necessary and does not need to be conducted because surface activity is not a desired property of the material.

 

Flash point

Testing for this end pointis technically not feasible and does not need to be conducted because the flash point is only relevant to liquids and low melting point solids.

 

Auto 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 auto flammable at high temperature.

 

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.

 

Explosiveness

In accordance with column 2 of Annex VII of the REACH regulation, testing for this end point is scientifically not necessary and 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 there are no chemical groups present in the molecule which are associated with oxidizing properties and hence the classification procedure does not need to be applied.

 

pH

Based on the available data from study report,the pH of test chemical was determined. The study was performed in accordance with OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 3.38 at 27.5°C. Thus, test chemical is considered to be acidic in nature.

 

Viscosity

Testing for this end pointis technically not feasible and does not need to be conducted because the test chemical is a solid.