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: 604-086-6
CAS number: 138577-01-2
The acute toxicity of Cesium fluoroaluminate to Gobiocypris rarus
was determined in a semi-static test according to the OECD Testing
Guideline 203 and under GLP.
During the range-finding test, a white precipitation was observed in the
test solutions of the treatment groups. The test substance contains
aluminum (Al) element, so the precipitation could result from the
formation of low soluble salts, i.e., the reaction product between
aluminum and anions (OH-) present in the test water. Thus, a 24h
semi-static limit test was performed to maintain the concentration of
the test substance as far as possible. Based on the results of the
range-finding test, a nominal concentration of 120 mg/L and a blank
control were used to perform the limit test. The treatment group and
control group had one replicate, each containing 10 fish and the test
duration was 96h.
There were no mortalities and abnormalities observed in treatment group
during the test period. No mortality occurred in the control during the
test and the dissolved oxygen concentration was greater than 60.0% of
the air saturation value (ASV) throughout the test. Hence, the test was
considered to be valid.
During the test, the measured concentration of
aluminum (Al) analysed by ICP-MS, varied greater than 20% during the
test. Since the test substance consists of a variety of elements (Cs, Al
and F), the measured concentrations of the test substance were not
actually calculated by the measured concentrations of Aluminium analyzed
by ICP-MS. Therefore, in order to reflect the toxicity of the test
substance, the results were expressed as the nominal concentrations.
The 96h LC50 for the test substance to Gobiocypris rarus was
higher than 120 mg/L (the time-weighted mean concentration of Al was
7.20 mg/L) under tested conditions.
In a GLP- and guideline-conform
semi-static limit test of cesium fluoroaluminate according to OECD 203,
the 96h-LC50 for freshwater fish Gobiocypris rarus was estimated with >
120 mg cesium fluoroaluminate /L (measured, TWA) (Jing, 2013). Thus,
cesium fluoroaluminate seems to have a low potential for toxicity to
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.
På den här webbplatsen används kakor. Syftet är att optimera din upplevelse av den.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Do not show this message again