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EC number: 265-183-3
CAS number: 64742-80-9
A complex combination of hydrocarbons obtained from a petroleum stock by treating with hydrogen to convert organic sulfur to hydrogen sulfide which is removed. It consists of hydrocarbons having carbon numbers predominantly in the range of C11 through C25 and boiling in the range of approximately 205°C to 400°C (401°F to 752°F).
Information on short term toxicity to
aquatic invertebrates was unavailable for other gas oils, however
suitable read across information from vacuum gas oils, hydrocracked gas
oils and distillate fuels is available. The 48 h EL50 for Daphnia was 68
mg/L. This data is from Shell report 6304 (1996). This is the most
conservative value from the two key studies. This study is reliable (2)
it is a GLP compliant, guideline study, no restrictions, fully adequate
A wide range of values have been reported
for the supporting studies, they have not been considered for use as key
studies because insufficient information was supplied to determine
whether they meet the validity criteria of the test methods.
This endpoint has been filled by read-across
of measured data from another category. It is supported in a weight of
evidence approach by a calculated value using composition information
derived from two dimensional gas chromatography in conjunction with the
PETROTOX model. The calculated LL50 is 7.385 mg/L.
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 petroleum substance and
membrane-water partition coefficients (KMW) that describe the
partitioning of the hydrocarbons between the water and organism. The
estimated freshwater invertebrate 48-hr EL50 value is 7.385 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.
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