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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

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Description of key information

At the mean measured concentration of 75 mg/L (loading rate of 100 mg/L), no mortality or other visible abnormalities were determined during the test period of 96 hours. Related to Manganese oxalate, which is the substance for registration (correction factor: 1.252, adjusted to the anhydrous form of the substance), no effects were found at the mean measured concentration of 59.9 mg/L. 

Key value for chemical safety assessment

Additional information

The acute toxicity of the test item Manganese oxalate dihydrate to zebra fish (Brachydanio rerio) was determined in a 96-hour semi-static test with daily test medium renewal according to the EU Commission Directive 92/69/, Part C.1, the Commission Regulation (EC) No 440/2008, Part C.1 and the OECD Guideline for Testing of Chemicals No. 203 (1992).

A limit test was performed in accordance with the threshold approach requiring that the fish test be performed with a single concentration close to or slightly higher than the lowest EC50value obtained in tests with algae and daphnia. The threshold approach (based on the Guidance on Information Requirements and Chemical Safety Assessment, ECHA (2008)) was used to demonstrate, that zebra fish is not the most sensitive species for Manganese oxalate dihydrate.