jacknife360 Posted February 4, 2005 Posted February 4, 2005 To make gas smell of something they used to contaminate it with onion skins. But now they use a chemical - what is that chemical? Thanks for any help
kingjewel1 Posted February 6, 2005 Posted February 6, 2005 mercaptobutanone and dimethyl sulphide among others. not easy to make those two
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