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EC number: 203-051-9
CAS number: 102-76-1
Triacetin (CAS 102-76-1) is not considered to be harmful to
aquatic organisms based on the results from short-term studies with
fish, aquatic invertebrates and algae as well as long-term results on
toxicity to aquatic invertebrates. No effects were observed up to a
nominal concentration of 100 mg/L on aquatic invertebrates and algae
with an LC50 (96 h) > 100 mg/L for Oryzias latipes and an EC50 (48 h) of
380 mg/L for Daphnia magna. The result with the freshwater algae
Selenastrum capricornutum is in line with these results indicating low
toxicity (ErC50 (72 h) > 940 mg/L and NOEC (72 h) 468 mg/L). An
additional long-term study with Daphnia magna did not result in any
toxic effects on reproduction and mortality after 21 d up to a nominal
concentration of 100 mg/L (corresponding to a measured concentration of
94 mg/L). Triacetin did not cause inhibition of biodegradation in a
study according to OECD 301B with activated sludge microorganisms. No
inhibition of degradation was observed at the applied test concentration
of 20 mg/L. Moreover, no effects on cell multiplication of Pseudomonas
putida were observed up to a nominal test concentration of 1088 mg/L
after 18 h. Thus, the overall potential to cause inhibition of activated
sludge microorganisms is low and significant inhibition of the
subsequent degradation process in sewage treatment plants is not
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.
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