PETROLEUM NAPHTHA, [FLAMMABLE LIQUID LABEL] may be incompatible with strong oxidizing agents like nitric acid. Charring may occur followed by ignition of unreacted material and other nearby combustibles. In other settings, mostly unreactive. Not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, burns exothermically to produce mostly carbon dioxide and water.
colourless liquid with hydrocarbon odour
 Anjoo Kamboj, Ajay Kumar Saluja (2011) Isolation of Stigmasterol and beta sitosterol from petroleum ether extract of Aerial parts of Ageratum Conyzoides (Asteracea), Inter. J. Pharma. Pharma. Sci. 3, 94-¬96.
 Ashton Acton (2011) Advances in Immune System Research and Applications
Inhalation of concentrated vapor may cause intoxication. Liquid is not very irritating to skin or eyes but may get into lungs by aspiration.
Colorless liquid with the odor of gasoline. Less dense than water and insoluble in water. Hence floats on water. Also refered to as Varnish Makers & Painters Naphtha. This petroleum fraction is similar to Petroleum Ether (CAS 8030-30-6) but V.M. & P. is a heavier distillate. Flash point ranges from 20° F to 100° F.
Air & Water Reactions
Highly flammable. Insoluble in water.
Petroleum ether, a petroleum distillation fraction, is a mixture of low molecular weight aliphatic hydrocarbons (mostly pentanes and hexanes) with a low boiling range, typically around 30-60oC. Its name is derived from its origin and its ease of evaporation.The majority components include paraffins, olefins, naphthenes, aromatics, and about 10%–40% ethyl alcohol。
Petroleum ether is commonly used as a nonpolar solvent for oils, fats, and waxes. Petroleum ether is used in pharmaceutical industries as a solvent to isolate compounds, e.g. petroleum ether can extract stigmasterol and beta-sitosterol from the aerial parts of Ageratum conyzoides and compounds with immunomodulatory activity from Anacyclus pyrethrum. It is also used as a detergent, a fuel, insecticide, in paints and varnishes, and in photography.
Shake it several times with conc H2SO4, then 10% H2SO4 and concentrated KMnO4 (to remove unsaturated, including aromatic, hydrocarbons) until the permanganate colour persists. Wash it with water, aqueous Na2CO3 and again with water. Dry it with CaCl2 or Na2SO4, and distil it. It can be dried further using CaH2 or sodium wire. Passage through a column of activated alumina, or treatment with CaH2 or sodium, removes peroxides. For the elimination of carbonyl-containing impurities without using permanganate, see n-heptane. These procedures could be used for all fractions of pet ethers. See skellysolve below, p. 178. Rapid purification: Pass it through an alumina column and fractionally distilling, collecting the desired boiling fraction.