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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 236-112-3 | CAS number: 13170-23-5
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
- Study period:
- February 9, 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- According to EU Method A.1. GLP 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- method to determine freezing temperature
- Remarks:
- (PN-ISO 1392: Method for the determination of the freezing point: 2002)
- Key result
- Melting / freezing pt.:
- < -35.2 °C
- Remarks on result:
- other: (temperature of initial freezing point)
- Conclusions:
- The crystallization of di(tert-butoxy)diacetoxysilane was not visually observed up to -35.2 °C.
- Executive summary:
The determination of the freezing point of di(tert-butoxy)diacetoxysilane was performed according to EU Method A.1 in conformity with OECD Guideline 102 (PN-ISO 1392: Method for the determination of the freezing point). The crystallization of di(tert-butoxy)diacetoxysilane was not visually observed up to -35.2 °C. According to Column 2 of REACH Annex VII, the study does not need to be conducted below a lower limit of –20 °C.
Reference
During the test the temperature of samples decreased at a constant rate, for measurement No. 1 to the temperature of -35.2 ºC and for measurement No. 2 to the temperature of -30.5 ºC. The crystallization was not observed during all measurements.
The crystallization of di(tert-butoxy)diacetoxysilane was not visually observed up to -35.2 °C.
Description of key information
Key study: EU Method A.1. GLP study. The crystallization of diacetoxydi-tert-butoxysilane was not visually observed up to -35.2 °C.
Key value for chemical safety assessment
Additional information
Key study: The determination of the freezing point of diacetoxydi-tert-butoxysilane was performed according to EU Method A.1 in conformity with OECD Guideline 102 (PN-ISO 1392: Method for the determination of the freezing point). The crystallization of diacetoxydi-tert-butoxysilane was not visually observed up to -35.2 °C. According to Column 2 of REACH Annex VII, the study does not need to be conducted below a lower limit of –20 °C.
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.
