Here’s a concise update on the latest publicly available information about petroleum ether.
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What it is and safety basics
- Petroleum ether is a low-boiling hydrocarbon mixture used as a nonpolar solvent in laboratories and industry. It is highly flammable and has low water solubility. These properties contribute to its flammability and inhalation hazard and are repeatedly noted in safety references.[2][7][9]
- It is important to handle petroleum ether with appropriate ventilation, away from ignition sources, and with suitable personal protective equipment as outlined in safety data sheets and regulatory references.[9][10]
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Latest scientific and safety literature
- Recent toxicology studies have examined sub-chronic effects of petroleum ether in animal models, reporting dose-dependent effects on body weight, organ weights, and certain blood biochemistry parameters at higher doses. These findings contribute to the understanding of potential organ-specific toxicities under prolonged exposure in controlled settings.[4]
- Several reviews and briefings summarize the use of petroleum ether and related solvents in extraction processes and their toxicological profiles, including their role in brine shrimp lethality assays and oil extraction contexts. These sources highlight both the utility and potential hazards of nonpolar solvent fractions in laboratory and environmental settings.[1][3]
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Regulatory and hazard information
- Hazard and regulatory entries describe flash points, explosive limits, and miscibility characteristics, reinforcing the need for strict handling controls in labs and industry to prevent fires or exposures. This information is commonly cited in hazard databases and chemical safety repositories.[2][4]
If you want, I can:
- Pull the most current regulatory or safety SDS details for petroleum ether from specific agencies or suppliers.
- Summarize any recent peer-reviewed toxicology studies in more detail (e.g., study design, doses, and outcomes).
- Create a quick reference card with key hazards, handling steps, and emergency actions tailored to a lab setting in Los Angeles.
Sources
In general, organic solvents are inhibiting many physiological enzymes and alter the behavioural functions, but the available scientific knowledge on laboratory solvent induced organ specific toxins are very limited. Hence, the present study was ...
pmc.ncbi.nlm.nih.govFlash Point: -86 to -40°F (NIOSH, 2024) Lower Explosive Limit (LEL): 1.1 % (NIOSH, 2024) Upper Explosive Limit (UEL): 5.9 % (NIOSH, 2024) Autoignition Temperature: data unavailable … Boiling Point: 86 to 460°F at 760 mmHg (NIOSH, 2024) Molecular Weight: 99 (approx) (NIOSH, 2024) Water Solubility: Insoluble (NIOSH, 2024) Ionization Energy/Potential: data unavailable IDLH: 1100 ppm ; Based on 10% of the lower explosive limit. [From NPG: Petroleum distillates (naphtha)] (NIOSH, 2024)
cameochemicals.noaa.govCAS Number 8032-32-4
www.ncc.ieThe median lethal concentration (LC50) of the petroleum ether extract (1.3 microL/mL) was about three times that of the chloroform extract (4.1 microL/mL) at 24 h post-treatment. At the concentrations of 500.0 microL/mL, the median lethal time (LT50) of the petroleum ether extract and the chloroform extract was 8.4 and 9.6 h, respectively. … The LC50 of all the tested samples were showed to be lethal to brine shrimp nauplii. However, petroleum ether, carbon-tetrachloride extract, column...
www.science.govIt was found that these solvents except 2-Pro showed a promising oil recovery rate of about 40%, but the recycling of DCM solvent after oil extraction was quite low. Three solvents (CHX, MEK and EA) were then selected for examining the effect of freeze/thaw treatment on improving the quality of recovered oil.
www.science.gov