Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

No reliable data on acute toxicity to fish are available for magnesium sulphate. Based on a reliable study on potassium sulphate the LC50 for freshwater fish for the sulfate category is 680 mg/L.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
680 mg/L

Additional information

No reliable data on magnesium sulphate itself are present. Several supporting studies show LC50s from 24 -96 hr of > 10000 mg/L. A key study on potassium sulphate and potassium magnesium sulphate is available. As for the potassium magnesium sulphate no effect has been found at the highest dose tested (63.3 mg/L) and the sulphate contains a double salt, the study with potassium sulphate is a key study. The static study was performed according to EPA test guidelines with fathead minnow fish and a 96hr LC50 of 680 mg/L was determined. Although fish were fed once during the study it is not expected that this will affect the result. Analytical monitoring was performed.