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2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a polychlorinated dibenzo-p-dioxin (sometimes shortened, though inaccurately, to simply 'dioxin') [3] with the chemical formula C 12 H 4 Cl 4 O 2. Pure TCDD is a colorless solid with no distinguishable odor at room temperature.
They are commonly but inaccurately referred to as dioxins for simplicity, because every PCDD molecule contains a dibenzo-1,4-dioxin skeletal structure, with 1,4-dioxin as the central ring. Members of the PCDD family bioaccumulate in humans and wildlife because of their lipophilic properties, and may cause developmental disturbances and cancer .
Polychlorinated dibenzo-p-dioxins (PCDDs), or simply dioxins. PCDDs are derivatives of dibenzo-p-dioxin. There are 75 PCDD congeners, differing in the number and location of chlorine atoms, and 7 of them are specifically toxic, the most toxic being 2,3,7,8-tetrachlorodibenzodioxin (TCDD). Polychlorinated dibenzofurans (PCDFs), or furans.
Sold for: $309,000. In today’s edition of things I wish I thought of, a travel writer named Ian Usher decided to “sell” his entire life on eBay, including his house, job, and possessions, in ...
In the pre-internet era, information about rare coins was hard to come by unless... Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...
Even in terrible condition, the NGC values the coin at $1,000, with top-quality versions reaching $30,000. One seller is currently offering the coin on eBay for $39,995 in MS62 Uncirculated condition.
The first auction ended on June 5, 2006, with a winning bid of US$5,000,310. However, the sale was not completed, and the fort and lands surrounding it remain for sale and have been relisted on the site several times since. [10] [11] In October 2008, amidst the 2008–2011 Icelandic financial crisis, one seller put up Iceland for sale. The ...
Here are the top six coins, ranked in order of the sale price, with descriptions from Stack’s Bowers: 1825/4/1 Capped Head Left Half Eagle: With only three known to exist, this rare coin fetched ...