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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 484-460-1 | CAS number: 37859-55-5
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- >= 250 °C
- Remarks on result:
- other: No melting temperature. Reaction and/or decomposition of the test substance starting at 250 ºC (523K) was observed
- Conclusions:
- No melting of OS 1600 was observed below 250 ºC the temperature at which reaction and/or decomposition started . The test substance has no melting temperature.
- Executive summary:
The melting point test was performed in accordance with OECD Guideline 102 and EU method A.1. No melting of OS 1600 was observed below 250 ºC the temperature at which reaction and/or decomposition started . The test substance has no melting temperature.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Conducted with the main hydrolysis product= MPKO.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Key result
- Melting / freezing pt.:
- ca. -45 °C
- Atm. press.:
- ca. 101.7 kPa
- Conclusions:
- The melting point of MPKO is -45°C at an atmospheric pressure of ca. 101.7 kPa.
- Executive summary:
The melting temperature of the substance was determined using a Q100 difference scanning calorimeter. The melting point of MPKO is -45°C at an atmospheric pressure of ca. 101.7 kPa.
Referenceopen allclose all
No melting of OS 1600 was observed below 250 ºC the temperature at which reaction and/or decomposition started . The test substance has no melting temperature.
Description of key information
No melting of OS 1600 was observed below 250 °C, the temperature at which reaction and/or decomposition started . The test substance has no melting temperature. The melting point of MPKO, the main hydrolysis product of OS1600 was determined to be -45°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -45 °C
Additional information
Key study: The melting point test was performed on OS-1600 in accordance with OECD Guideline 102 and EU method A.1. No melting of OS 1600 was observed below 250 ºC the temperature at which reaction and/or decomposition started . The test substance has no melting temperature.
Supporting study: The melting temperature of the analogue substance MPKO was determined using a Q100 difference scanning calorimeter. The melting point was -45°C at an atmospheric pressure of ca. 101.7 kPa.
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.
