3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one

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:

29/07/2016 – 29/07/2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with national standard methods

Justification for type of information:

Experimental result using standard methods of analysis

Qualifier:

according to guideline

Guideline:

other: as mentioned below

Principles of method if other than guideline:

The Freezing point determination of test item 3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No. 127-51-5) was done using crushed ice and salt bath.

GLP compliance:

no

Type of method:

other: standard laboratory method

Specific details on test material used for the study:

- Name of test material : 3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
- Common name : alpha-isomethyl ionone
- Molecular formula : C14H22O
- Molecular weight : 206.327 g/mol
- Smiles notation : C1([C@@H](\C=C(\C(C)=O)C)C(=CCC1)C)(C)C
- InChl : 1S/C14H22O/c1-10-7-6-8-14(4,5)13(10)9-11(2)12(3)15/h7,9,13H,6,8H2,1-5H3/b11-9+
- Substance type : Organic
- Physical state : Liquid

Key result

Melting / freezing pt.:

< -15.6 °C

Atm. press.:

965.7 hPa

Decomposition:

no

Sublimation:

no

Remarks on result:

other: other details not available

TEST DESCRIPTION AND RESULTS :

Method Details		Observations	Remarks if, any
Method	Method according to Cooling Curve
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/ml	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)	Thermistor
Atmospheric pressure	hPa	965.7
Freezing point °C	°C	less than -15.6 °C

 

Conclusions:

The Freezing point of 3-methyl-4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No.127-51-5) was determined using crushed ice and salt. No freezing was observed up to -15.6°C.

Executive summary:

The Freezing point of 3-methyl-4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No.127-51-5) was determined with crushed ice and salt bath and the freezing point was concluded to be less than -15.6°C at 965.7 hPa.

Description of key information

The Freezing point of 3-methyl-4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No. 127-51-5) was determined with crushed ice and salt bath and the freezing point was concluded to be less than -15.6 °C at 965.7 hPa

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-15.6 °C

Additional information

The Freezing point of 3-methyl-4-(2, 6, 6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one (CAS No.127-51-5) was determined with crushed ice and salt bath and the freezing point was concluded to be less than -15.6°C at 965.7 hPa.