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The Copper Fire was a wildfire in Los Angeles County, Southern California, in June 2002.After igniting on June 5 near the city of Santa Clarita, the fire burned for a week and consumed 23,407 acres (9,472 hectares), damaging wildlife habitat and historic structures in the Angeles National Forest.
The 2008 Iron Alps Complex Fire—also called the Iron/Alps Complex Fire—was a large wildfire complex in northeastern California's Trinity County. The complex comprised 48 fires, 36 of which were in the Iron Complex, and 12 in the Alps Complex, [ 4 ] : 114 all of which were ignited by lightning on June 21.
The Copper Canyon Fire was a wildfire that started near the town of Globe, Arizona on May 7, 2021. The fire burned a total of 2,875 acres (1,163 ha) and was fully ...
Colored fire is a common pyrotechnic effect used in stage productions, fireworks and by fire performers the world over. Generally, the color of a flame may be red, orange, blue, yellow, or white, and is dominated by blackbody radiation from soot and steam.
This means that there is a practical limit on how high the matte grade can be if the loss of copper to slag is to be minimized. Therefore, further stages of processing (converting and fire refining) are required. The following subsections briefly describe some of the processes used in matte smelting.
Copper(I) chloride: CuCl The richest blue flame. Almost insoluble in water. Blue Copper(I) oxide: Cu 2 O Lowest cost blue colorant. Blue Copper(II) oxide: CuO Used with chlorine donors. Excellent in composite stars. Blue Basic copper carbonate CuCO 3 ·Cu(OH) 2, 2 CuCO 3 ·Cu(OH) 2: Occurs naturally as malachite and azurite.
To produce purer copper suitable for making copper plates or hollow-ware, further melting processes were undertaken, using charcoal as fuel. The repeated application of such fire-refining processes was capable of producing copper that was 98.5-99.5% pure. [citation needed]
The Osceola Mine was a copper mine consisting of 11 shafts [1] ... On September 7, 1895, a fire broke out on level 27 [3] in the No. 3 shaft of the Osceola Mine. [2]