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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

EC50 24 h = 2.25 mg/l
EC50 48 h = 1.32 mg/l

2.25 and 1.32 mg/L, respectively

2.25 and 1.32 mg/L, respectively

The EC 50 values determined for potassium dichromate after 24 and 48 hours were 2.25 and 1.32 mg/L, respectively

Key value for chemical safety assessment

Fresh water invertebrates

Fresh water invertebrates
Effect concentration:
1.32 mg/L

Additional information

All the available studies performed on similar substances showed some effects on Daphnia Magna.
The key study has been performed and based on the active ingredient a value of EC50 48 h of 1.32 mg/l has been established.

Based on the criteria of the CLP Regulation (EC n. 1272/2008), the substance needs to be classifies as Aquatic Chronic 2.