Registration Dossier
Registration Dossier
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EC number: 234-448-5 | CAS number: 12004-14-7
Toxicity to terrestrial arthropods
Administrative data
Link to relevant study record(s)
Description of key information
Ettringite is not expected to have a detrimental effects on terrestrial arthropods. See discussion in this section.
Key value for chemical safety assessment
Additional information
There are no studies available on terrestrial organisms for Ettringite. Due to its chemical nature Ettringite is not stable under natural environmental conditions. The main degradation products are calcium sulfate (dihydrate) with limited solubility resulting in free calcium and sulfate ions and insoluble aluminium hydroxides and insoluble aluminium oxides (at neutral pH range).
The relevant compound to consider with regard to terrestrial toxicity of Ettringite is aluminium.
Nevertheless, aluminium is the most abundant metallic element in the Earth's crust. Based on its ubiquitous occurrence the present natural background concentration far outweighs anthropogenic contributions of aluminium to the terrestrial environment. As detailed in the endpoint summary on terrestrial toxicity in general further toxicity testing on terrestrial organisms is considered unjustified and waiving based on exposure consideration is applied.
However, for reasons of completeness existing data on the terrestrail toxicity of aluminium are provided in addition and summerised here. In a laboratory study by Crouau & Moia (2006) with the springtail Folsomia candida the toxicity of alumnium to reproduction and growth was investigated over a period of 35 days of exposure. LOECs for growth and reproduction were determined to be 500 and 125 µg/L, respectively. The EC50 for reproduction was 210 µg/L.
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