Reaction mass of 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one and 4-(2,6,6-trimethylcyclohex-1-ene-1-yl)-but-3-ene-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:

12-09-2018 – 12- 09-2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

Data is from experimental study report

Qualifier:

according to guideline

Guideline:

other: as mentioned below

Principles of method if other than guideline:

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

GLP compliance:

no

Type of method:

other: Freezing Temperature Method

Specific details on test material used for the study:

- Name of test material: Ionone
- IUPAC name: Reaction mass of 4-(2,6,6-trimethylcyclohex-2-ene-1-yl)-but-3-ene-2-one and 4-(2,6,6-trimethylcyclohex-1-ene-1-yl)-but-3-ene-2-one
- Molecular formula: C13H20O
- Molecular weight: 192.3 g/mole
- Smiles : C1([C@@H](C(=CCC1)C)\C=C\C(C)=O)(C)C
- Inchl: 1S/C13H20O/c1-10-6-5-9-13(3,4)12(10)8-7-11(2)14/h6-8,12H,5,9H2,1-4H3/b8-7+
- Substance type: Organic
- Physical state: liquid

Key result

Melting / freezing pt.:

< 10.42 °C

Atm. press.:

977.8 hPa

Remarks on result:

other: No other details available

Method Details		Observations
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		1 ml
Type of cooling bath used	Cold Water Crushed Ice Crushed Ice-Salt Dry Ice Other (specify)	Crushed IceSalt
Type and model no. of temperature sensor used	Glass thermometer Thermocouple Thermistor Other (specify)	Thermistor
Atmospheric pressure	hPa	977.8 hPa
Freezing point °C	°C	less than - 10.42 °C

Conclusions:

The Freezing point of Ionone; CAS No. 8013-90-9 was determined with Freezing Temperature Method and it was found to be less than -10.42 °C at 977.8 hPa.

Executive summary:

The Freezing point determination of Ionone (CAS No.8013-90-9) was done using crushed ice + salt. No freezing was observed up to -10.42°C. Hence, the freezing point was inferred to be -10.42°C at hPa.

Description of key information

The freezing point of test chemical was determined by Freezing Temperature Method.  No freezing was observed up to -10.20°C. Hence, the freezing point was inferred to be less than -10.20°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-10.2 °C

Additional information

The freezing point of test chemical was determined by Freezing Temperature Method.  No freezing was observed up to -10.20°C. Hence, the freezing point was inferred to be less than -10.20°C.