2,2,3,3,4,4,5,5,6,6-decafluoro-6-trifluorovinyloxyhexanenitrile

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Jun 2001

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2001

Report date:

2001

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

2,2,3,3,4,4,5,5,6,6-decafluoro-6-trifluorovinyloxyhexanenitrile

EC Number:

443-050-2

EC Name:

2,2,3,3,4,4,5,5,6,6-decafluoro-6-trifluorovinyloxyhexanenitrile

Cas Number:

120903-40-4

Molecular formula:

C8F13NO

IUPAC Name:

2,2,3,3,4,4,5,5,6,6-decafluoro-6-[(1,2,2-trifluoroethenyl)oxy]hexanenitrile

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch number of test material: Lot 3, dated January 2001
- Purity, including information on contaminants, isomers, etc.: 93.8% (area) GC
- Expiration date: June 30, 2002
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: In the dark (steel bottle) under nitrogen atmosphere in the refrigerator (2 - 8 °C), protected from light and moisture

Results and discussion

Melting / freezing point

Key result

Melting / freezing pt.:

< -60 °C

Atm. press.:

1 013.3 hPa

Any other information on results incl. tables

The measurement showed an exothermal effect in the temperature range of -110 to -85 °C, directly followed by an endothermic effect in the temperature range of -85 to -70 °C. It has to be assumed, that the test substance stiffens amorphously during the cooling process with liquid nitrogen. When heating up a transition process from the amorphous to the crystalline phase could have taken place, directly followed by the melting processs in the temperature range of -85 to -70 °C.

Applicant's summary and conclusion

Conclusions:

The melting point of MV5CN was determined to be <-60 °C (OECD 102).

Executive summary:

The melting point of MV5CN was determined using differential scanning calorimetry (DSC). The measurement showed an exothermal effect in the temperature range of -110 to -85 °C, directly followed by an endothermic effect in the temperature range of -85 to -70 °C. The study was conducted in accordance with OECD 102 guidelines and was GLP compliant. The study is considered reliable without restrictions.