Registration Dossier
Registration Dossier
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EC number: 203-989-9 | CAS number: 112-60-7
Endpoint summary
Administrative data
Description of key information
Additional information
Aquatic toxicity to sewage microorganisms and aquatic organisms were not observed at the highest concentration tested in limit tests at 100 mg/L and greater. Where effects were observed at a specific concentration, these occurred at greater than 1,000 mg/L. Acute aquatic toxicity data are presented as Key and Supporting Studies for testing of marine fish, invertebrate, and alga for the category members.
For fish, two studies are available. The first, which is presented as the Key Study, is a 96 -hour test with fathead minnows in which the LC50 was calculated to be >10,000 mg/L. The second study was a marine fish, Scophthalmus maximus and was considered a supporting study. The 96-Hour LC50 based on nominal test concentrations was greater than 100 mg/l, higher than the higest concentration tested. Correspondingly, the No Observed Effect Concentration was 100 mg/l.
The acute toxicity of tetraethylene glycol was examined with the freshwater invertebrate Daphnia magna. After 24 hours, there was 0% immobilisation in the controls and the 3600 and 6000 mg/L treatments, and 85% immobilisation in the 10,000 mg/L treatment. After 48 hours, there was 0% immobilisation in the controls and the 3600 and 6000 mg/L treatments, and 100% immobilisation in the 10,000 mg/L treatment. The acute LC50 in daphnia was 7746 mg/L in this test. In brine shrimp, the 24 hr LC50 is greater than 10,000 mg/L indicating low toxicity to brine shrimp.
In an acute algae study of marine organisms with category member DEG and TEG, the EC50 values were greater than 100 mg/l.
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