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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance:

On the basis of physical observation and using the sense of smell, the appearance of trans-menthone (CAS No. 89-80-5 ) was found to be acolourless to yellowish clear liquid organic compound.

Melting point:

The Freezing point of trans-menthone; CAS No. 89-80-5 was determined using Freezing Temperature Method No freezing was observed up to -12.8 °C.

Boiling Point:

The mean boiling point of trans-menthone (CAS No. 89-80-5) was 203°C at 967.9 hPa.

Density:

The mean density of trans-menthone (CAS No. 89-80-5) was found to be 0.9963 g/cm³ at 20°C and 968.2hPa.

Particle size distribution:

In accordance with column 2 of Annex VII of the REAcH regulation this end point was considered for waiver since the given chemical trans-menthone (CAS No. 89-80-5) is a liquid and is expected to be marketed or used in a non solid or granular form.

Vapour pressure:

Vapour pressure of trans-menthone (CAS No. 89-80-5) is estimated to be 0.0370 kPa (0.278 mm Hg) at temperature 25 Deg C.

Partition coefficient:

Based on the available data from peer reviewed journal,the partition coefficient (log Pow) value of the substance (2R,5S)-5-methyl-2-(propan-2-yl)cyclohexan-1-one was determined by using the reversed-phase high-performance liquid chromatography method and was evaluated to be 3.05 with a standard error of 0.07 at a temperature of 37°C and pH 7.2, respectively. Based on this value, chemical (2R,5S)-5-methyl-2-(propan-2-yl)cyclohexan-1-onecan be considered to be hydrophilic in nature.

Water solubility:

The water solubility of trans-menthone (CAS No. 89-80-5) is determined to be 688 mg/L at temperature 25 Deg C.

Surface tension:

Based on the data from ACD labs, surface tension for trans-menthone (CAS No. 89-80-5) was predicted to be 0.0272 N/m.

Flash point:

The mean flash point of trans-menthone (CAS No. 89-80-5) was 72°C at 968.5 hPa.

Auto flammability:

trans-menthone (CAS No. 89-80-5) did not catch fire on being exposed to air at room temperature of 27°Cpressure of 966 hPa. This indicates that trans-menthone (CAS No. 89-80-5) is not auto-flammable.

Flammability:

trans-menthone (CAS No 89-80-5) 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 trans-menthone (CAS No 89-80-5) is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus trans-menthone (CAS No 89-80-5) was considered as 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 organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure does not need to be applied.

pH:

The pH of 1% w/v emulsion of the test item trans-menthone (CAS No 89-80-5) was 3.78 at 26.5 °C.

Viscosity:

Kinematic viscosity (experimental) of trans-menthone (CAS No. 89-80-5) at 20°C and 40°C is 18.5592 mm²/sec and 16.7904 mm²/s, respectively. Dynamic viscosity (calculated) of trans-menthone (CAS No. 89-80-5) at 20°C and 40°C is 18.4905 mPa.S and 16.7282 mPa.S, respectively.

Additional information

Appearance:

On the basis of physical observation and using the sense of smell, the appearance of trans-menthone (CAS No. 89-80-5) was found to be acolourless to yellowish clear liquid organic compound.

Other supporting data from handbooks also supported the selected key study, and observed the appearance of trans-menthone (CAS No. 89-80-5) as colorless liquid having mint odor.

Melting point:

The Freezing point determination of trans-menthone (CAS No.89 -80-5) was done using crushed ice and salt. No freezing was observed up to -12.8°C. Hence, the freezing point was inferred to be less than -12.8 °C at 970.1hPa.

Other supporting data from handbooks and authoritative databases, also exbihited the freezing point of trans-menthone (CAS No.89-80-5) as -6 Deg C.

Boiling Point:

The boiling point determination of trans-menthone (CAS No. 89-80-5) was done following OECD Guideline 103 and according to the method of Siwoloboff. The test was conducted in replicates and mean boiling point was found to be 203°C at 967.9 hPa.

Other supporting data from handbooks and authoritative databases, also supported the selected key study and exbihited the boiling point of trans-menthone (CAS No. 89-80-5) as 207 Deg C, 210 Deg C at pressure 101.3 kPa and 217.64 Deg C, closer to the selected key value.

Density:

The density of test item trans-menthone (CAS No. 89-80-5) was determined following OECD Guideline 109 and according to the IS 4730 : 1994 (Reaffirmed 2010) – Method for Determination of Density of Liquids (First Revision) using glass pyknometer. The mean density of test item was found to be 0.9963 g/cm³ at 20°C and 968.2hPa..

Other supporting data from handbooks and authoritative databases, also supported the selected key study and exhibited the density of

trans-menthone (CAS No. 89-80-5) is concluded in the range of 0.888 to 0.895  g/cm3, 0.89 g/cm3 at 20 Deg C and 0.8915 g/cm3 at 25 Deg C.

Particle size distribution:

In accordance with column 2 of Annex VII of the REAcH regulation this end point was considered for waiver since the given chemical trans-menthone (CAS No. 89-80-5) is a liquid and is expected to be marketed or used in a non solid or granular form.

Vapour pressure:

Based on available data from handbook and authoritative databases, the vapour pressure of trans-menthone (CAS No. 89-80-5) is estimated to be 0.0370 kPa (0.278 mm Hg) at temperature 25 Deg C.

Partition coefficient:

Based on the available data in a key study from peer reviewed journal and supporting study from authoritative database, octanol water partition coefficient (log Pow) value of the test substance (2R,5S)-5 -methyl-2 -(propan-2 -yl)cyclohexan-1 -one was determined to be 3.05.

Another supporting study from handbook, review article and authoritative databases indicates that the partition coefficient (log Pow) value of the substance (2R,5S)-5 -methyl-2 -(propan-2 -yl)cyclohexan-1 -one was estimated to be 2.87.

Thus, on the basis of logPow value, chemical (2R,5S)-5 -methyl-2 -(propan-2 -yl)cyclohexan-1 -one can be considered to be hydrophilic in nature.

Water solubility:

Based on available data from handbook and authoritative databases, the water solubility of trans-menthone (CAS No. 89-80-5) is determined to be 688 mg/L at temperature 25 Deg C.

From the obtained value it is concluded that trans-menthone (CAS No. 89-80-5) is moderately soluble in water.

Surface tension:

Based on the data from ACD labs, surface tension for trans-menthone (CAS No. 89-80-5) was predicted to be 0.0272 N/m.

Flash point:

The flash point determination of trans-menthone (CAS No. 89-80-5) was done following closed cup method using Pensky-Martens flash point apparatus. The test was conducted in replicates and mean flash point was found to be 72°C at 968.5hPa.

Other supporting data from handbook, also supported the selected key study and exhibited the flash point of trans-menthone (CAS No. 89 -80-5) as 72 Deg C.

Auto flammability:

trans-menthone (CAS No. 89-80-5) did not catch fire on being exposed to air at room temperature of 27°Cpressure of 966 hPa. This indicates that trans-menthone (CAS No. 89-80-5) is not auto-flammable.

Flammability:

trans-menthone (CAS No 89-80-5) 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 trans-menthone (CAS No 89-80-5) is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus trans-menthone (CAS No 89-80-5) was considered as 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 organic substance contains oxygen or halogen atoms which are chemically bonded only to carbon or hydrogen and hence, the classification procedure does not need to be applied.

pH:

The pH determination of test item trans-menthone (CAS No 89-80-5) was done following OECD guideline 122. pH of 1% w/v emulsion was measured with the help of pH meter and it was observed to be 3.78 at 26.5 °C.

Viscosity:

Kinematic viscosity (experimental) of trans-menthone (CAS No. 89-80-5) at 20°C and 40°C is 18.5592 mm²/sec and 16.7904 mm²/s, respectively. Dynamic viscosity (calculated) of trans-menthone (CAS No. 89-80-5) at 20°C and 40°C is 18.4905 mPa.S and 16.7282 mPa.S, respectively.