Jisho

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石油
Wikipedia definition
1. Petroleum etherPetroleum ether, also known as benzine, VM&P Naphtha (varnish makers' & painters'), Petroleum Naphtha, Naphtha ASTM, Petroleum Spirits, X4 or Ligroin, is a group of various volatile, highly flammable, liquid hydrocarbon mixtures used chiefly as nonpolar solvents. Chemically, it is not an ether like diethyl ether, but a light hydrocarbon.
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