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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 241-993-2 | CAS number: 18088-11-4
Endpoint summary
Administrative data
Description of key information
Short-term toxicity to aquatic invertebrates
The short-term toxicity of Rubidium Oxide to the freshwater aquatic invertebrate, Daphnia magna, was assessed via an OECD Guideline 202 (‘Daphnia sp. Acute Immobilisation Test’) study. The study was performed at a GLP accredited laboratory, met the validity criteria prescribed by the guideline and is well documented and is therefore considered to be reliable.
Exposures of D. magna to the test item resulted in a nominal 48 hour EC50 value of 29 mg a.i./L based on immobilisation. The resulting 48 hour NOEC and LOEC values were determined to be 16 mg a.i./L and 40 mg a.i./L, respectively.
Toxicity to aquatic algae and cyanobacteria
The toxicity of Rubidium Oxide to the freshwater algae, Pseudokirchneriella subcapitata, was assessed via an OECD Guideline 201 (‘Freshwater Alga and Cyanobacteria, Growth Inhibition Test’) study. The study was performed at a GLP accredited laboratory, fulfilled the validity criteria described by the guideline and is well documented and is therefore considered to be reliable.
Exposures of P. subcapitata to the test item resulted in nominal 72 hour EC50 values of 40 mg a.i./L and 9.2 mg a.i./L based on growth rate and yield, respectively. The resulting 72 hour NOEC and LOEC values were 3.2 mg a.i./L and 10 mg a.i./L for both growth rate and yield.
Additional information
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.
