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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 213-668-5 | CAS number: 999-97-3
Water solubility
Administrative data
- Endpoint:
- water solubility
- Adequacy of study:
- other information
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Justification for type of information:
- Data waiving: Data from handbook or collection of data
Data source
Reference
- Reference Type:
- review article or handbook
- Title:
- The Merck Index Monograph ID M5995
Materials and methods
Results and discussion
- Details on results:
- Insol in water, reacts slowly.
HMDZ undergoes rapid hydrolysis in the presence of water; the half life at pH 7 and 1.5°C is <0.5 minutes. Based on the chemical structure of HMDZ, this hydrolysis is expected to produce ammonia (CAS No. 7664-41-7) and trimethylsilanol (CAS No. 1066-40-6). Ammonia was previously assessed in the OECD HPV Chemicals Programme. Because HMDZ is hydrolytically unstable, water solubility and partition coefficient were not measured; modeled values are provided. In aqueous solutions, exposures to HMDZ are likely to betransient and observed toxicity is likely due primarily to the hydrolysis products
Applicant's summary and conclusion
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.
