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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
05-10-2017 – 05- 10-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The Freezing point determination of trans-menthone (CAS No.89-80-5) was done using crushed ice and salt.
GLP compliance:
not specified
Type of method:
other: standard laboratory method
Specific details on test material used for the study:
- IUPAC Name: (2R,5S)-5-methyl-2-(propan-2-yl)cyclohexan-1-one- Common Name: Menthone/ trans-menthone- InChI: 1S/C10H18O/c1-7(2)9-5-4-8(3)6-10(9)11/h7-9H,4-6H2,1-3H3- Smiles:C1([C@@H](CC[C@@H](C1)C)C (C)C)=O- Molecular formula:C10H18O - Molecular weight :154.2512 g/mole- Substance type: Organic- Physical state: Clear liquid (colourless to yellowish)- Purity: 98% (by GC)
Key result
Melting / freezing pt.:
-12.8 °C
Atm. press.:
970.1 hPa
Remarks on result:
other: other details not available

TEST DESCRIPTION AND RESULT

Method Details

Observations

Remarks if, any

Method

Freezing Temperature Method

-

 

Principle of Freezing point test

The freezing point of a pure sample is the temperature at which transition from liquid to solid state takes place at atmospheric pressure.

-

Quantity of test item used

g

1 ml

Type of cooling bath used

 

Cold Water Crushed Ice Crushed Ice-Salt Dry Ice

Other (specify)

 

 

Crushed Ice- Salt

Type and model no. of temperature sensor used

 

Glass thermometer Thermocouple Thermistor

Other (specify)

Glass thermometer

Atmospheric pressure

hPa

970.1 hPa

Freezing point

°C

°C

less than -12.8

°C

Conclusions:
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.
Executive summary:

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.

Description of key information

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.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-12.8 °C

Additional information

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.