So, what is asphalt and where does it come from? The source is petroleum, that dark viscous liquid found deep within the Earth, the product of once living organisms subjected to millennia of...
At one time it was used as an aftershave because of its sweet smell.聽聽It was even used to decaffeinate coffee.聽聽Oh my, how times change!聽聽Today we worry about a few parts per billion of benzene in...
Candles are one of the oldest forms of generating light.聽Any flame, of course, is a source of light so candles emerged from a search for materials that could burn for a long time.聽Nobody knows who...
Oils are defined as any net uncharged chemical substance that is a thick liquid at room temperature and is both hydrophobic (does not mix with water) and lipophilic (does mix with fats, or lipids)....
Lipsticks, (the waxy kind that come聽in the traditional tube), contain a variety of natural waxes, such as beeswax, carnauba wax, ozokerite, ceresin, or microcrystalline wax, which is聽derived from...
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