Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 236-921-1 | CAS number: 13548-38-4
Short-term toxicity to fish
Administrative data
Link to relevant study record(s)
Description of key information
The 96-h LC50 of 4400 µg/L chromium (20.1 mg/L chromium trinitrate) was obtained with two-month-old fresh juvenile fish and an LC50 value of 24.09 mg/L using rainbow trouts (96 h exposure). And 96-h LC50 of 53 mg Cr/L (242.6 mg/L chromium trinitrate) was derived for marine juvenile mullet.
Key value for chemical safety assessment
Fresh water fish
Fresh water fish
- Effect concentration:
- 20.1 mg/L
Marine water fish
Marine water fish
- Effect concentration:
- 53
Additional information
Three short-term toxicity tests, including two fresh tests and one marine test were available.
A short-term toxicity study to fresh fish was conducted to determine the acute effects of the test substance on the early life stages of steelhead trout (Salmo gairdneri). Eight concentrations of 1100, 1933, 1966, 2900, 3100, 3966, 5650, 5825 µg/L and a control administrated to the test fish. After 96 hours exposure, the 96-h LC50 of 4400 µg/L chromium was obtained with two-month-old juvenile fish.
Another short-term toxicity test for fresh fish was performed. And the 96-hour toxicity bioassays was conducted in a mobile bioassay laboratory and conducted according to standard method using a continuous flow proportional diluter to evaluate the short-term toxicity of the test substance to 2-month-old rainbow trout. 4.02-64.25 mg/kg were applied to the test fish. After 96 hours exposure, the 96-h LC50 of the test substance to (2-month-old) rainbow trout was 24.09 mg/L. In static tests with marine fish (juvenile mullet), the 96-h LC50 values for the test substance was 53 mg/L.
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.
