Registration Dossier

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2008-11-07
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: guideline recommendations - According to “Endpoint specific guidance R.7.1.10.1” the test does not need to be conducted if the melting/freezing point is below -20 °C.Futher study is scientifically unjustified after a preliminary test.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2010
Report Date:
2010

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
The substance was placed in 247 K (-26 °C) for approximately 24 h and was then visually examined. As it was still in a liquid phase, it was concluded
that the substance has a melting point below 253 K (-20 °C).
GLP compliance:
no
Type of method:
other: freezer at -26°C

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): n-Butyraldehyde
- Substance type: organic
- Physical state: liquid
- Analytical purity: GC purity 99.7%
- Impurities (identity and concentrations): Iso-butyraldehyde: 0.05%, Butanoic acid: 0.10%
- Lot/batch No.: 605214

Results and discussion

Melting / freezing point
Melting / freezing pt.:
< -20 °C
Atm. press.:
101.3 kPa

Applicant's summary and conclusion

Conclusions:
Melting point/freezing point: < 253 K (< -20 °C)
Executive summary:

Melting point/freezing point: < 253 K (< -20 °C)

Futher study is scientifically unjustified after a preliminary test.

According to “Endpoint specific guidance R.7.1.10.1” the test does not need to be conducted if the

melting/freezing point is below -20 °C.