Registration Dossier
Registration Dossier
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EC number: 265-052-0 | CAS number: 64741-51-1 A complex combination of hydrocarbons produced by vacuum distillation of the residuum from atmospheric distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C20 through C50 and produces a finished oil with a viscosity of at least 100 SUS at 100°F (19cSt at 40°C). It contains a relatively large proportion of saturated aliphatic hydrocarbons.
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
In a key semi-static 21-day long-term Daphnia magna test (OECD 211; KS=1) using the WAF of Light Paraffinic Distillate (CAS 64741-50-0), ten replicate test chambers (each containing one daphnid) were prepared for each treatment group and control. Two actual loadings were tested, namely 0.1 and 1.1 mg/l. The 21 day NOELR for reproduction was 0.1 mg/l, the LOELR was 1.1 mg/l (ExxonMobil Biomedical Sciences (2012).
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