• Lithium
  • Because of its relative nuclear instability, lithium is less common in the solar system than 25 of the first 32 chemical elements even though its nuclei are very light: it is an exception to the trend that heavier nuclei are less common. (wikipedia.org)
  • calcium
  • News stories in recent years have reported experiences of unfortunate individuals who have unknowingly consumed tainted or otherwise unsafe drinking water that included high levels of lead, calcium, arsenic, and other chemicals that have serious negative health effects. (environmental-expert.com)
  • Calcium carbonate is deposited where evaporation of the water leaves a solution supersaturated with the chemical constituents of calcite. (wikipedia.org)
  • production
  • Limestone has numerous uses: as a building material, an essential component of concrete (Portland cement), as aggregate for the base of roads, as white pigment or filler in products such as toothpaste or paints, as a chemical feedstock for the production of lime, as a soil conditioner, or as a popular decorative addition to rock gardens. (wikipedia.org)
  • formation
  • This chemical addition results in the formation of heavier solids, which trap the colloidal solids or convert dissolved solids to settleable solids. (issuu.com)
  • conditions
  • This study demonstrated that relatively small adjustments to processing conditions of different wet chemical preparation methods significantly affect the morphological and chemical characteristics of nHA. (duhnnae.com)