Registration Dossier
Registration Dossier
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EC number: 256-852-0 | CAS number: 50925-66-1
Endpoint summary
Administrative data
Description of key information
Research has been performed on a number of chromium salts.
Chromium and chloride occur naturally in water and is not considered to be accumulative. Algae appear to be the most sensitive organism for short term exposure (significant inhibition at 0.3 mg/l Cr 3+), but fish NOEC reported to be 0.15 mg/l Cr 3+ for chronic exposure.
The toxicity of chloride ions is lower than that for chromium ions and it is considered that the toxicity of chromium hydroxy chloride will be dictated by the chromium
Additional information
Although under laboratory conditions chromium appears to have an impact on algal growth at concentrations sufficiently low for classification, the presence of sediments and salts found in natural water will limit the solubility of chromium 3+ in the environment in view of ion exchange quickly leading to precipitation as Cr(OH)3
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