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Petrocom Energy Group, LLC MSDS—Unleaded Gasoline (All Grades) <br /> Section 11: Toxicological Information <br /> Toxicology Information <br /> Oral toxicity: Almost non-toxic. LD 50: > 2000 mg/kg (species: rats) <br /> Dermal toxicity: Almost non-toxic. LD 50: >2000 mg/kg (species: rabbits) <br /> Inhalation toxicity: Almost non-toxic. LD 50: > 5 mg/I (species: rats) <br /> Eye irritation: Almost non-irritating. Draize score: > 6 and < 15 (species: rabbits) <br /> Skin irritation: Irritant. Primary irritation index: > 3 and < 5 (species: rabbits) <br /> Other data: Inhalation of high concentrations of vapors or mists may cause <br /> respiratory system irritation and damage. It may also result in the <br /> damage and depression of the central nervous system and may <br /> cause death. Prolonged contact with the material may cause <br /> severe skin irritation. <br /> Subchronic toxicity: Dermal studies resulted in significant irritation but not systematic <br /> toxicity (species: rabbits). Inhalation exposures (90 day, <br /> approximately 1500 ppm vapor) produced light hydrocarbon <br /> nephropathy but no significant systemic toxicity (species: rats). <br /> Neurotoxicity: Repeated and prolonged exposures to high concentrations of <br /> vapor has been reported to result in central nervous system <br /> damage and eventually, death. In a study in which ten human <br /> volunteers were exposed for 30 minutes to approximately 200, <br /> 500 or 1000 ppm concentrations of gasoline vapor, irritation of the <br /> eyes was the only significant effect observed, based on both <br /> subjective and objective assessments. <br /> However, no persistent neurotoxic effects were observed in <br /> subchronic inhalation studies of gasoline. <br /> Reproductive toxicity: An inhalation study with rats exposed to 0, 400 and 1600 ppm of <br /> wholly vaporized unleaded gasoline, 6 hours per day on day 6 <br /> through 16 of gestation, showed no teratogenic effects nor <br /> indication of toxicity to either the mother or the fetus. Another <br /> inhalation study in rats exposed to 3000, 6000, or 9000 ppm of <br /> gasoline vapor, 6 hours per day on day 6 through 20 of gestation, <br /> also showed no teratogenic effects nor indications of toxicity to <br /> either the mother or the fetus. <br /> Chronic toxicity: A lifetime mouse skin painting study of unleaded gasoline applied <br /> at 50 microliters, three time weekly, resulted in some severe skin <br /> irritation and changes, but no statistically significant increase in <br /> skin cancer or cancer to any other organ. Lifetime inhalation of <br /> wholly vaporized unleaded gasoline over 2000 ppm has caused <br /> increased liver tumors in female mice and increased kidney <br /> tumors in male rats. The EPA has concluded that mechanism by <br /> which wholly vaporzied unleaded gasoline causes kidney damage <br /> is unque to the male rat. The effects in that species (kidney <br /> damage and cancer)should not be used in human risk <br /> assessment. <br /> MSDS No:PEG-UNL Page 9 of 13 0310512008 <br />