1,1,2,2,3,3,4,4,4-nonafluoro-N,N-bis(2-hydroxyethyl)butane-1-sulphonamide

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Administrative data

Endpoint:

relative self-ignition temperature (solids)

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is a solid having a melting point <= 160°C

Cross-reference

Reason / purpose for cross-reference:

data waiving: supporting information

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

31 Aug - 06 Oct 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Lot 38022 (drum 1)
- Physical state: White solid
- Analytical purity: 95.11%
- Expiration date of the lot/batch: 31 May 2017

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: at room temperature

Key result

Melting / freezing pt.:

79 °C

The DSC-curves obtained during the five experiments are included in attachments. In Experiment 1, two endothermic peaks between 50 °C and 100 °C were observed. The effects were most likely related to melting of the test item. In order to investigate the effects between 50 °C and 100 °C a repeated heating cycle was applied in Experiment 2. Two exothermic peaks between 25 °C and 75 °C were observed on cooling and endothermic peaks again observed between 50 °C and 100 °C in the second heating cycle. An experiment (curve 5) done at a higher heating rate showed that the lower temperature endothermic peak was rate-dependent and thus not related to melting. The melting temperature was determined as the average temperature of the effects obtained from Experiment 1 (79.547°C), Experiment 2 (78.953 °C), Experiment 3 (79.712 °C) and Experiment 4 (79.217 °C).

Conclusions:

The melting point of FBSEE diol was determined to be 79 °C by the EU Method A.1.

Executive summary:

The melting point of FBSEE diol was tested using differential scanning calorimetry (DSC). The melting temperature was determined as the average temperature of the effects obtained from five experiments. The study was conducted in accordance with EU Method A.1 and was GLP compliant; therefore the study is considered reliable without restrictions.