Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 270-695-5 | CAS number: 68476-55-1
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 08/12/2008 - 08/04/2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, experimental study. No restrictions, fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- other: differential scanning calorimetry
- Melting / freezing pt.:
- > -140 - < -70 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The substance shows two melting signals between -140 °C and -70 °C, with a main peak at approximately -83 °C.
- Executive summary:
This study is GLP compliant and follows a standard guideline, therefore the data is classed as reliable. The substance shows two melting signals between -140 °C and -70 °C, with a main peak at approximately -83 °C.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06/06/2007 - 16/10/2007
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant, guideline study, available as unpublished report, no restrictions fully adequate for assessment
- 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
- GLP compliance:
- yes
- Type of method:
- other: Differential scanning calorimetry
- Melting / freezing pt.:
- < -100 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of 68476-55-1 is below -100°C.
- Executive summary:
This study was conducted to a standard guideline and according to GLP and so is considered fully reliable for use as a key study. The melting point of 68476-55-1 is below -100°C.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 23/10/2007 - 04/03/2008
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP compliant,guideline study, available as unpublished report, no restrictions fully adequate for assessment
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- other: Differential scanning calorimetry
- Melting / freezing pt.:
- < -50 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The melting point of 92128-65-9 is below -50°C.
- Executive summary:
This study was conducted to a standard guideline and according to GLP and so is considered fully reliable for use as a key study. The melting point of 92128-65-9 is below -50°C.
Referenceopen allclose all
In the first heating two small endothermic peaks at about -135 and -100 indicates the melting of secondary constituents. In the second heating a glass transition was found to be at -111°C. An endothermic peak starting at about 48°C with the registered loss in mass shows the vapourisation of the test item. In order to survey the thermic behaviour of the test item the dermination was run up to 200°C. Exothermic decomposition was not observed.
No melting temperature was found between -50 and 400°C. An endothermic peak starting at about -105°C shows the melting of the constituents of the test item. An endothermic peak starting at about -75°C (onset) was observed. In combination with the recorded loss of mass this shows the vapourisation of the test item. Exothermic decomposition was not observed from -100 to 400°C.
Description of key information
The melting point of streams in this category is less than -50°C, with a mean value of -78ºC.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -78 °C
Additional information
Data from GKA Competence Centre Analytics (2008, 2008 and 2009) are available for three of the streams in this category (64742-49-0: -83°C, 92128 -65 -9: <-50°C, 68476 -55 -1: <-100°C).
These data will be read across to all category members. The mean of the melting point values for the category is -78°C and this has been used to complete the 'key value for chemical safety assessment'.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
