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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
28 February 2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was performed according to OECD guidelines and GLP.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes
Type of method:
other: see Remark
Remarks:
preliminary study using test tubes to determine rough mp, it was determined that it was < -20 oC
Melting / freezing pt.:
< -81 °C
Decomposition:
no
Sublimation:
no
Conclusions:
During the preliminary test it was found that the substance has no defined freezing point or freezing range. With decreasing temperature, the viscosity increased without showing a clear phase transition of the liquid into the solid state. In conclusion, the freezing point of is < -81 °C (<192K).
 
Executive summary:

The determination of the freezing temperature was based on EECDirective 92/69 EEC, A.1 "Melting/Freezing temperature (1992) and on OECD Guideline no. 102 "Melting Poin/Melting Range" (1981 ). During the preliminary test it was found that the substance has no defined freezing point or freezing range. With decrease of temperature, the viscosity increased, without showing a clear phase transition of the liquid into the solid state. In conclusion, the freezing point of is < -81 °C (<192K).

Description of key information

During the preliminary test it was found that the substance has no defined freezing point or freezing range. With decrease of temperature, the viscosity increased, without showing a clear phase transition of the liquid into the solid state. In conclusion, the freezing point of is < -81 °C (<192K).  The endpoint is therefore waived as the mp is < -20 oC.

Key value for chemical safety assessment

Additional information