Surveys suggest that most Americans consume less than the RDA for copper each day. Up to 10,000 micrograms daily appears to be safe for consumption in adults. Vegan diets appear to provide adequate amounts of copper. In a number of clinical trials copper doses of 2-10 milligrams by mouth were safely used in patients. For plaque inhibition, a 1.1mM copper rinse has been used for four days.
Best Answer: Petroleum jelly or petrolatum is made by refining a byproduct of oil drilling. Petrolatum is a semi-solid mixture of hydrocarbons, having a melting-point usually ranging from a little below to a few degrees above 100Â° F (37Â° C).etroleum jelly is made by touching-up a byproduct of oil drilling, or some left over products of oil drilling. Vaseline is a well-known brand of petroleum jelly. Source(s): http://en.wikipedia.org/wiki/Petroleum_j... Cap'n Eridani Â· 9 years ago. Thumbs up. 1. Thumbs down. 1. 1 comment. Loading ...
7 Surprising Uses of Oil. There's oil in there Petroleum does more than just provide gasoline for cars and jet fuel for airliners. Products and byproducts of petroleum end up in items used daily around the world â billions of pounds of polyethylene plastic alone go toward making plastic bags, food containers, hula hoops and other consumer products.