alkaline earth


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

alkaline earth

[¦al·kə‚līn ′ərth]
(inorganic chemistry)
An oxide of an element of group 2 in the periodic table, such as barium, calcium, and strontium. Also known as alkaline-earth oxide.
References in periodicals archive ?
Among the alkaline earth metals, Ca showed a gradual decline from the litter layer to the bottom of the profile in all 3 years irrespective of the habitat type (Figs 2c, 3c, 4c).
Therefore, small changes in the reabsorption processes as a result of imposed variables or disease states will result in large effects on the relative urinary excretion of these alkaline earth cations.
The corrosives include acid halides, alkaline earth hydroxides, atmosphere, carbonic acid, drinking water, hot oxidizing gases, methanol, sodium chloride, and sulfuric acid.
Morgan Thermal Ceramics stated that, its Superwool products are special low biopersistent alkaline earth composition fibers (AES fibers) which provide benefits in high temperature insulation applications.
The composition is substantially free of alkaline earth sulfonates.
Strontium 90, an isotope of strontium and an abundant alkaline earth metal, is produced in nuclear reactions.
Other topics include wrought magnesium research for automotive applications, the mechanical properties of superlight Mg- Li-Zn alloys, the dissolution and recovery of manganese additions into liquid magnesium, and the effect of alkaline earth metal oxides on magnesium alloys.
The composition does not contain gluconic acid, ethylene diaminetetraacetate sodium salt, 5-bromo-5-nitro-1,3dioxane, any abrasives, silicas, alkaline earth metal carbonates, alkyl glycine surfactants, cyclic imidinium surfactants, alkali metal carbonates or more than 3% by weight of a fatty acid or salt.
In addition to the products and markets mentioned previously, to satisfy other developing markets, Altair is developing special technology approaches to making nanoparticles of zirconium oxide, titanium dioxide nanoparticles with molecular coatings of alkaline earth metal titanates and other metal compounds, and catalyst materials using nanoparticles of mixed metal oxides.
But this alkaline earth metal is more commonly found in compounds (two or more elements that are chemically combined).
In addition to these progress items that have previously been report, Altair has been developing special technology approaches to making nanoparticles of zirconium oxide, titanium dioxide nanoparticles with molecular coatings of alkaline earth metal titanates and other metal compounds, and catalyst materials using nanoparticles of mixed metal oxides.