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This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium.
The environmental cost of copper mining was estimated at 3.7 kg CO 2-eq per kg of copper in 2019. [52] Codelco, a major producer in Chile, reported that in 2020 the company emitted 2.8 t CO 2-eq per ton (2.8 kg CO 2-eq per kg) of fine copper. [53]
The price slump lasted until 2004 which saw a price surge that had copper reaching $9,000 per tonne in the May 2006, but it eventually fell down to $7,040 per tonne in early 2008. [93] When the slump came, it hit some copper mining countries like the Democratic Republic of the Congo (D.R.C.) very hard.
That should eventually send prices soaring to $15,000 per ton, he predicted. Coppers prices are already at record highs, with benchmark prices in London at about $10,000 per ton, more than ...
Copper(II) chloride is used as a catalyst in a variety of processes that produce chlorine by oxychlorination. The Deacon process takes place at about 400 to 450 °C in the presence of a copper chloride: [8] 4 HCl + O 2 → 2 Cl 2 + 2 H 2 O. Copper(II) chloride catalyzes the chlorination in the production of vinyl chloride and dichloromethane. [8]
Sodium chloride / ˌ s oʊ d i ə m ˈ k l ɔːr aɪ d /, [8] commonly known as edible salt, is an ionic compound with the chemical formula NaCl, representing a 1:1 ratio of sodium and chlorine ions. It is transparent or translucent, brittle, hygroscopic , and occurs as the mineral halite .
The process has a high energy consumption, for example around 2,500 kWh (9,000 MJ) of electricity per tonne of sodium hydroxide produced. Because the process yields equivalent amounts of chlorine and sodium hydroxide (two moles of sodium hydroxide per mole of chlorine), it is necessary to find a use for these products in the same proportion.
Copper is a chemical element with the symbol Cu (from Latin: cuprum) and the atomic number of 29. It is easily recognisable, due to its distinct red-orange color . Copper also has a range of different organic and inorganic salts , having varying oxidation states ranging from (0,I) to (III).