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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

72 h EC50: 1.14 mg/l, EC10: 0.636 mg/l, NOEC: 0.127 mg/l (growth rate) (geometric mean measured concentrations).

Key value for chemical safety assessment

EC50 for freshwater algae:
1.14 mg/L
EC10 or NOEC for freshwater algae:
0.636 mg/L

Additional information

A 72 hour EC50 value of 1.14 mg/l, an EC10 value of 0.636 mg/l and a NOEC value of 0.127 mg/l, based on geometric mean measured concentrations, have been determined for the effects of the test substance, triethylsilane, on growth rate of the green algae, Pseudokirchneriella subcapitata. The test was conducted in compliance with OECD guideline 201.