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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance / physical state / colour:

The physical appearance of test chemical was observed to be an organic compound in the form of off white to beige solid flakes .

Melting point/ Freezing point:

The melting point determination of test chemical was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 200.6 - 204.5°C at 970.2 hPa.

Boiling point:

Based on prediction done using ACD/Percepta, boiling point of test chemical was predicted as 522.4°C.

Density:

The density of test chemical was determined following OECD Guideline 109 and according to the method adapted from ASTMD854-02 using Pyknometer .The mean density of test chemical was determined to be 0.8814 g/cm³at 20°C and 976.7hPa.

Particle size distribution (Granulometry):

The test item has particle size of : D10 = 890 µm, D50 = 1680µm and D90 = 2016µm. MMAD = 1680µm

Vapour pressure:

The estimated vapour pressure by using ACD/Percepta predicted that test chemical has a vapour pressure < 0.133 Pa at 25°C.

Partition coefficient:

The octanol water partition coefficent (log Pow) of test chemical was estimated to be 4.69 at temperature 25 degree C.

Water solubility:

The water solubility determination of test chemical was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of test chemical in water was determined to be 8.2131 mg/L at 25°C.

Surface tension:

Based on the prediction done by ACD labs, the surface tension for test was predicted to be 0.03765 N/m

Flash point:

The study does not need to be conducted because the flash point is only relevant to liquids and low melting point solids

Autoflammability:

Test chemical did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that it 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 it 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.

Oxidising properties:

Since the burning rate of the test item  was smaller than the burning rate of the reference material, the test ime has no oxidizing properties.

pH:

The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 7.25 at 32.5 °C.

Additional information

Appearance / physical state / colour:

The physical appearance of test chemical was observed to be an organic compound in the form of off white to beige solid flakes .

From other reliable sources the physical appearance of test chemical was observed to be a begie coloured odourless organic solid.

Melting point/ Freezing point:

The melting point determination of test chemical was done following OECD Guideline 102 and according to the metal block capillary method. The test was conducted in replicates and mean melting temperature range was determined to be 200.6 - 204.5°C at 970.2 hPa.

Other supporting data from EPI Suite MPVPBP V1.43, also estimated the melting point of test chemical as 215.78 ˚C.

Boiling point:

Based on prediction done using ACD/Percepta, boiling point of test chemical was predicted as 522.4°C.

Also from other estimation database, the Boiling point of test chemical was  estimated to be 506.82 ˚C.

Density:

The density of test chemical was determined following OECD Guideline 109 and according to the method adapted from ASTMD854-02 using Pyknometer .The mean density of test chemical was determined to be 0.8814 g/cm³at 20°C and 976.7hPa.

Other supporting data from ACD/Percepta, also estimated the density of test chemical as 0.954 ± 0.06 g/cm3, at 20 °C and 760 mmHg pressure.

Particle size distribution (Granulometry):

The test item has particle size of : D10 = 890 µm, D50 = 1680µm and D90 = 2016µm. MMAD = 1680µm

Vapour pressure:

The estimated vapour pressure by using ACD/Percepta predicted that test chemical has a vapour pressure < 0.133 Pa at 25°C.

Partition coefficient:

The octanol water partition coefficent (log Pow) of test chemical was estimated to be 4.69 at temperature 25 degree C.

Another prediction was done from Comptox database.In this study, the octanol water partition coefficent (log Pow) of test chemical was estimated to be 4.22 at temperature 25 degree C.

On the basis of both the studies mentioned above it can be concluded that partition coefficient of test chemical is in range of 4.22 - 4.69.

Water solubility:

The water solubility determination of test chemical was done as per the OECD guideline 105 by spectrophotometric analytical method as per OECD 101. The solubility of test chemical in water was determined to be 8.2131 mg/L at 25°C.

Based on the data available on ACD/Labs estimation database, water solubility of test chemical was predicted to be 0.057 g/L.

So, as per value obtained from experimental report and estimation database, the test substance was considered to be slightly soluble in water.

Surface tension:

Based on the prediction done by ACD labs, the surface tension for test was predicted to be 0.03765 N/m

Flash point:

The study does not need to be conducted because the flash point is only relevant to liquids and low melting point solids

Autoflammability:

Test chemical did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that it 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 it 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.

Oxidising properties:

Since the burning rate of the test item  was smaller than the burning rate of the reference material, the test ime has no oxidizing properties.

pH:

The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 7.25 at 32.5 °C.