5 Matching Annotations
  1. Jan 2020
    1. The areas around phosphate facilities in central Florida usually consist of cattle ranches and agriculture with some residential areas as well. The surrounding flora absorb (uptake) the toxic elements caused by phosphate mining, through the root system into the leaves from reclaimed mined soils.

      how Phosphorus mines negatively affect the local communities around them.

    1. White phosphorus is a waxy, transparent solid. Its melting point is 44.1°C (111°F) and its boiling point is 280°C (536°F). It has a density of 1.88 grams per cubic centimeter. If kept in a vacuum, it sublimes if exposed to light.

      the properties of Phosphorus.

    1. somewhere at the interfaces between the solder balls and the nickel-phosphorous pad. Solders are ductile tin-based materials, but during soldering they chemically react with the solid metals being soldered — such as the nickel-phosphorous alloy — to form intermetallic compounds.

      How Phosphorus is used in a smartphone.

    1. The white allotrope can be produced using several different methods. In the industrial process, phosphate rock is heated in an electric or fuel-fired furnace

      This shows me how Phosphorus is refined and specifically how white Phosphorus is made and heated in the process.

    1. These are mined in Brazil, Canada, Finland, Russia, South Africa and Zimbabwe. Phosphate rock is mined mostly by surface methods using draglines and bucket wheel excavators for large deposits and power shovels or earthmovers for smaller deposits.

      This clip is about where Phosphorus is mined and how it is mined. Phosphorus is mined in many different places around the world.