Registration Dossier
Registration Dossier
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EC number: 925-292-5 | CAS number: -
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The estimated protozoan, Tetrahymena pyriformis, 48-hr EL50 value is 51.6 mg/l for Hydrocarbons, C6, n-alkanes, isoalkanes, cyclics, n-hexane rich and the 48 -hr NOEL values is 10.82 mg/l, calculated using PETROTOX..
Key value for chemical safety assessment
Additional information
The aquatic toxicity was estimated using the Petrotox computer model, which combines a partitioning model used to calculate the aqueous concentration of hydrocarbon components as a function of substance loading with the Target Lipid Model used to calculate acute and chronic toxicity of non-polar narcotic chemicals. Petrotox computes toxicity based on the summation of the aqueous-phase concentrations of hydrocarbon block(s) that represent a hydrocarbon substance and membrane-water partition coefficients (KMW) that describe the partitioning of the hydrocarbons between the water and organism. The estimated protozoan, Tetrahymena pyriformis, 48-hr EL50 value is 51.6 mg/l for Hydrocarbons, C6, n-alkanes, isoalkanes, cyclics, n-hexane rich and the 48 -hr NOEL values is 10.82 mg/l, calculated using PETROTOX..
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