trans-menthone

Melting point / freezing point

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.