Registration Dossier

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-referenceopen allclose all
Reason / purpose:
reference to same study
Reason / purpose:
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:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Principles of method if other than guideline:
Not relevant
GLP compliance:
yes (incl. certificate)
Type of method:
method to determine freezing temperature

Test material

Reference
Name:
Unnamed
Type:
Constituent
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.