PDF-BROMINE(Data in metric tons of bromine content unless otherwise noted)

34 Domestic Production and UseBromine was recovered from underground brines by two companies in Arkansas Bromine often isthe leading mineral commodity in terms of value produced in Arkansas The. S mine production of copper in 2012 increased by 4 to about 115 million tons and was valued at about 9 billion Arizona Utah New Mexico Nevada and Montana in descending order of production accounted for more than 99 of domestic mine production copper In addition 3 of domestic gold was recovered as a byproduct of processing base metals chiefly copper Thirty operations yielded more than 99 of the gold produced in the United States Dome stic gold mine production in 2013 was estimated to be about 22 The total value was estimated to be about 16 billion Twenty eight companies operated 61 plants in 16 States The estimated percentage of salt sold or used by type was salt in brine 46 rock salt 36 vacuum pan 11 and solar salt 7 The chemical industry 68 Domestic Production and UseAlthough natural graphite was not produced in the United States in 2013, approximately 90 U.S. firms, primarily in the Northeastern and Great Lakes regions, used it for 94 Domestic Production and Use The only active lithium carbonate plant in the United States was a brine operation in Nevada. Two companies produced a large array of downstream lithium compounds in th 98 Domestic Production and UseIn 2013, magnesium was produced by one company at a 63,500tonperyear plant in Utah by an electrolytic process that recovered magnesium from brines from the Great Salt L 106 Domestic Production and Use In 2011, molybdenum, valued at about $2.2 billion (based on an average oxide price), was produced by mines. Molybdenum ore was produced as a primary product at four mi 160 Domestic Production and UseNo significant U.S. tantalum mine production has been reported since 1959. Domestic tantalum resources are of low grade, some mineralogically complex, and most are not Domestic Production and UseA tungsten mine in California produced concentrates in 2013. Approximately eight companies in the United States processed tungsten concentrates, ammonium paratungstate, tun 186 Domestic Production and Use atural zeolites were mined by companies in the United States, with 1other company working from stockpiled materials or zeolites purchasedfrom other producers for resal 66 Domestic Production and UseIn 2014, domestic gold mine production was estimated to be about tons, % less than in 2013, and the value was estimated to be about $8.llion.Gold was produced at about Domestic Production and UseIn 2014, the United States produced approximately 1,170 tons of silver with an estimated value of $718 million. Silver was produced at 3 silver mines and as a byproduct or !. Kassi. Hall . Period 3. Properties of . bROMINE. Halogens. Reacts . with metals, potassium, platinum, palladium. Density-3.12 . g/cm. 3. Properties of . bROMINE. . Melting point : . -. 7.3 °C. Ja. -Ho Koo. EAS 6792 Term project. Introduction. Tropospheric. ozone depletion event (ODE) usually happens in spring,. . polar. . region.. ODE looks strongly related to the amount of atmospheric bromine chemistry based on the heterogeneous reaction (Barrie et al., 1988).