![]() Cost (Pure) |
Cost (pure) gives the prices in U.S. dollars of pure elements intended for laboratory use. The largest volume and least expensive form of an element listed in a laboratory catalog was used. Purity was always greater than 99.5%, and in most cases greater than 99.9%. To learn how much an element costs when it is used in industrial processes consult the Cost (bulk) category. If you are interested in comparing prices of the elements, Cost (pure) is more appropriate since it contains data for more of the elements than does Cost (bulk). Prices for non-gaseous elements were obtained from the Sigma-Aldrich online catelog. The Sigma-Aldrich catelog can be viewed online at: http://www.sigmaaldrich.com (accessed July, 2002) Prices for gaseous elements were obtained from the Scott Specialty Gases online catelog. The Scott Specialty Gases catelog can be viewed online at: http://www.scottecatalog.com (accessed July, 2002) |