The fatty acids of peanut oil mainly include palmitic acid, stearic acid, linolenic acid, arachidonic acid, behenic acid, oleic acid, eicosenoic acid, tetracosenoic acid and so on. Peanut oil also contains special odor components: hexanal and γ -butyrolactone.

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Generally speaking, the specific gravity of peanut oil is 0.9 1 1 0-0.9180, that is to say, the weight of1liter peanut oil is 0.910-0.9180 kg (/.

Peanut oil is less dense than water. According to the density formula ρ = m/v, it can be known that the lower the density, the smaller the mass, so the same liter of water and peanut oil, the lighter the peanut oil. Is the density of water 1× 10? ㎏/m？ So the mass of a liter of water is1,which is two kilograms.