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: 272-702-7
CAS number: 68909-34-2
Due to its extremely low water solubility, the substance will not reach
high concentrations in the water, so bioaccumulation in aquatic
organisms can be regarded as negligible. Furthermore, due to
complexation with (an)organic molecules in water, ZrO2 will become
not-bioavailable both for aquatic and sediment-dwelling organisms.
Therefore, it is not feasible to perform a bioaccumulation test in water
Ferrand (2006) determined biota to soil accumulation factors for plants.
In the study, transfer of Zr from soil to tomato and pea plants was
studied during a 7-day exposure period in two soils (an acidic and a
calcareous soil) amended with either a soluble (ZrOCl2 or Zr acetate) or
an insoluble Zr compound (Zr(OH)4). Zr accumulated mainly in the roots,
with Zr adsorption to the root surface being of minor relevance.
Translocation to aerial parts was limited. BSAF values for roots were
the highest for Zr acetate and the lowest for Zr(OH)4. They were all <=
0.1. BSAF values for aerial parts were all <= 0.005 and were also
generally the highest for Zr acetate and the lowest for Zr(OH)4.
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.
Sellel veebilehel kasutatakse küpsiseid, et tagada lehe parim kasutus.
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