α,2,2,6-tetramethylcyclohexene-1-butyraldehyde

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

03/10/2005 - 04/10/2005

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: According to guideline under GLP

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Cross-reference 2

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2005

Report date:

2005

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Principles of method if other than guideline:

Not relevant

GLP compliance:

yes (incl. QA statement)

Type of method:

method to determine freezing temperature

Test material

Test material information

Constituent 1

Reference substance name:

α,2,2,6-tetramethylcyclohexene-1-butyraldehyde

EC Number:

265-747-9

EC Name:

α,2,2,6-tetramethylcyclohexene-1-butyraldehyde

Cas Number:

65405-84-7

Molecular formula:

C14H24O

IUPAC Name:

2-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)butanal

Details on test material:

- Name of test material (as cited in study report): Dihydro-C14-aldehyde
- Analytical purity: 96.3 %
- Physical state: liquid

Results and discussion

Melting / freezing point

Melting / freezing pt.:

<= 80 °C

Decomposition:

no

Sublimation:

no

Any other information on results incl. tables

No additional remarks

Applicant's summary and conclusion

Conclusions:

In conclusion, the freezing point / freezing range of Dihydro-C14 -aldehyde is below - 80 °C.

Executive summary:

In the main test, the test item was stored in small glass tube and was cooled down from room temperature to about -80 °C. The freezing of Dihydro-C14 -Aldehyde was evaluated visually because the determination of the freezing temperature with thermocouples showed no relevant heat effect. The test item became turbid at about -33 °C. At about -65 °C the test item became gluely and after - 73 °C it became solid but the probe of the thermocouple was still movable. During the cooling period until - 80.5 °C a well-defined freezing point was not detectable. This indicates that the test item does not freeze under the conditions of the test.

In conclusion, the freezing point / freezing range of Dihydro-C14 -aldehyde is below - 80 °C.