Хром: шинж чанар, шинж чанар, хэрэглээ
Chromium нь янз бүрийн төрлийн даавуунд зориулж өнгө оруулагч бодисоос эхлээд цэвэр металлаар хийж болох хром бүрэх гэж нэрлэгддэг метал эд ангиудыг чимэглэх хамгаалагч, эсвэл Cr (III) нэгдлүүд эсвэл Cr (VI) -аар өргөн хэрэглээний програмуудтай. . Хромын хайлуур …
Chromite: The only mineral ore of chromium metal
Chromite is an oxide mineral composed of chromium, iron, and oxygen (FeCr 2 O 4 ). It is dark gray to black in color with a metallic to submetallic luster and a high specific gravity. It occurs in basic and ultrabasic igneous rocks and in the metamorphic and sedimentary rocks that are produced when chromite-bearing rocks are altered by heat or ...
12 porphyry | PPT
Bingham Canyon, Utah The Bingham Canyon Mine is an open-pit mining operation extracting a large porphyry copper deposit southwest of Utah, USA. The mine has been in production since 1906, and has resulted in the creation of a pit over 0.6 miles (0.97 km) deep, 2.5 miles (4 km) wide, and covering 1,900 acres (770 ha). 14.