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: 234-842-7 | CAS number: 12036-22-5
Tungsten dioxide was not tested for toxicity to soil organisms and read-across to sodium tungstate was used for these endpoints.
Experimental results are available for sodium tungstate toxicity to earthworm reproduction, seedling emergence and seedling growth, as well as for carbon and nitrogen transformation. In addition, several older studies on chicken species were identified in which the animals were fed varying amounts of sodium tungstate in their diets. However, the bird studies were deemed to be unreliable and were not further considered in the assessment.
The most sensitive species to sodium tungstate was found to be the terrestrial plant L. sativa with an 21-d NOEC for % emergence, shoot height and shoot weight of 37 mg Na2WO4/kg soil dw which corresponds to a value of 23,15 mg W/kg soil dw.
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.
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.
Close Do not show this message again