โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Calcium
  • ๐Ÿ‡จ๐Ÿ‡ณ ้ˆฃ
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Calcium
  • ๐Ÿ‡ซ๐Ÿ‡ท Calcium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Calcium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืกื™ื“ืŸ
  • ๐Ÿ‡ฎ๐Ÿ‡น Calcio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใ‚ซใƒซใ‚ทใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Cálcio
  • ๐Ÿ‡ท๐Ÿ‡บ ะšะฐะปัŒั†ะธะน
  • ๐Ÿ‡ช๐Ÿ‡ธ Calcio
  • ๐Ÿ‡ธ๐Ÿ‡ช Kalcium

Calcium: uses

The following uses for calcium are gathered from a number of sources as well as from anecdotal comments. I would be delighted to receive corrections as well as additional referenced uses.

  • reducing agent for the preparation of metals such as thorium, uranium, zirconium, etc.
  • deoxidiser, desulphurizer, or decarbonizer for various alloys
  • alloys of calcium with agent for aluminium, beryllium, copper, lead, and magnesium have some useful properties
  • "getter" for residual gases in vacuum tubes, etc.
  • quicklime (CaO) is made by heating limestone (CaCO3) and changes into slaked lime, Ca(OH)2, on the addition of water. It is a cheap base for the chemical industry with many uses.
  • calcium from limestone is a component of Portland cement. Mixed with sand it hardens as mortar and plaster while taking up carbon dioxide from the air
  • the solubility of the carbonate in water containing carbon dioxide results in stalactites and stalagmites (Cheddar Gorge) and hardness in water.