Petroleum jelly smell when pure. It does not oxidize on exposure to the air and is not readily acted on by chemical reagents. It is insoluble in water. It is soluble in dichloromethane, chloroform, benzene, diethyl ether, carbon disulfide and oil of turpentine. Depending on the specific application of petroleum jelly, it may be USP, B.P., or Ph. Eur. grade. This pertains to the processing and handling of the petroleum jelly so it is suitable for medicinal and personal-care applications. Because they feel similar when applied to human skin, there is a common misconception that petroleum jelly and glycerol (glycerine) are physically
Star jelly of grass". <poem>As he whose quicker eye doth trace A false star shot to a mark'd place Do's run apace, And, thinking it to catch, A jelly up do snatch</poem> That the Starres eat...that those falling Starres, as some call them, which are found on the earth in the form of a trembling gelly, are their excrement. When I had taken up what I supposed a fallen star I found I had been cozened with a jelly. <poem>Swift as the shooting star, that gilds the night With rapid transient Blaze, she runs, she flies; Sudden she stops nor longer can