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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 206-114-9 | CAS number: 302-01-2
Endpoint summary
Administrative data
Description of key information
Additional information
In the absence of any reliable data to describe the adsorption/ desorption behaviour of hydrazine, a new study would become necessary. But in accordance with Section 2 of REACh annex XI, a test on adsorption/ desorption cannot be conducted as it is technically not possible. Furthermore, no reliable QSAR methods exist to estimate the Koc values of ionizable, inorganic compounds.
There are several studies available dealing with the behaviour of hydrazine in the presence of soil. Assessed individually, they all have several drawbacks hampering the determination of a partition coefficient as the documentation is insufficient. But summarizing the information, hydrazine might sorb or degrade when present in soil depending on the prevailing conditions. At low pH values, sorption mainly occurs, whereas at higher pHs, degradation is supported. Additionally, the soil composition might contribute to hydrazine degradation. No definite value for sorption on soil can be determined as a multitude of factors determine the behaviour of hydrazine in that environmental compartment.
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.
