alkaline earth


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alkaline earth

n
1. (Elements & Compounds) Also called: alkaline earth metal or alkaline earth element any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table
2. (Elements & Compounds) an oxide of one of the alkaline earth metals

al′kaline earth′


n.
any of the oxides of barium, radium, strontium, calcium, and, sometimes, magnesium.
[1810–20]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.alkaline earth - any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)alkaline earth - any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
References in periodicals archive ?
It is comprised of perfume; at least one nonionic surfactant; at least one alkyl benzene sulfonate; at least one olefin sulfonate; and at least one inorganic alkali metal salt or alkaline earth metal salt.
These complex oxides of alkaline earth metal elements and titanium, zirconium, or niobium and have high infrared reflectivity after firing.
They are lead based glazes, alkaline based glazes containing feldspars and/or frits, and alkaline earth based glazes containing calcium, magnesium, barium, strontium, beryllium oxide, zinc oxide, cadmium oxide and bismuth oxide.
Encyclopedia of the Alkaline Earth Compounds by Richard Ropp
Similarly, alabaster, plumbum, zings and mines of alkaline earth metal exists in Dishu, another border district of the province, which is 215 kilometres to the south of Lashkargah.
The contents include sections on each of the elemental groups, including the main groups (or families), alkali metals, alkaline earth metals, halogens, and noble gases.
Radium is an almost pure-white alkaline earth metal but it oxidises on exposure to air, becoming black.
In certain embodiments, the present invention is directed to the deposition of a zirconium-based pretreatment composition onto a substrate with the subsequent deposition of an electrodepositable coating composition, which comprises a soluble alkaline earth metal ion, onto the pretreatment composition.
Morgan Thermal Ceramics' Superwool products are special low bio-persistent alkaline earth composition fibers that have been uniquely engineered to offer advantages in high temperature insulation applications.
30 Cheltenham A white alkaline earth metal with the atomic number 88 and chemical symbol Ra, radium was discovered by Marie and Pierre Curie in 1898.
The plot of chemical data on Trilinear diagram reveals that majority of the groundwater fall in the fields of 1, 3, 5 suggesting that alkaline earth exceeds alkalies and weak acids exceeds strong acids respectively (Fig 2a and 2b).
Alkali and alkaline earth metal cations affect reactivity of oil shales, and leaching of these mineral matters with HCl slightly decreases oil shale conversion to volatile hydrocarbons and affects the reactivity of organic matter at pyrolysis.