Calcium Definition–noun Chemistry, Biology. | a silver-white divalent metal, occurring combined in limestone, chalk, gypsum, etc., occurring also in vertebrates and other animals, as a component of bone, skeletal mass, shell, etc., and as a necessary element in nerve conduction, heartbeat, muscle contraction, and many other physiological functions. Symbol: Ca; atomic weight: 40.08; atomic number: 20; specific gravity: 1.55 at 20°C. | |
From Dictionary
Chloride Definition–noun | 1. | a salt of hydrochloric acid consisting of t
3e8
wo elements, one of which is chlorine, as sodium chloride, NaCl. | | 2. | a compound containing chlorine, as methyl chloride, CH3Cl. | |
From Dictionary
Related topics from Britannicasalt
mineral substance of great importance. The mineral form halite, or rock salt, is sometimes called common salt to distinguish it from a class of chemical compounds called salts.chemical industry
The Leblanc process was eventually replaced by the ammonia-soda process (called the Solvay process), which was first practiced successfully in Belgium in the 1860s. In this process, sodium chloride ...
Ringer's solution
one of the first laboratory solutions of salts in water shown to prolong greatly the survival time of excised tissue; it was introduced by the physiologist Sidney Ringer in 1882 for the frog heart. ...
deliquescence
the process by which a substance absorbs moisture from the atmosphere until it dissolves in the absorbed water and forms a solution. Deliquescence occurs when the vapour pressure of the solution ...
thorium processing
Powdered ThO2 can be fluorinated with gaseous hydrogen fluoride (HF), yielding thorium tetrafluoride (ThF4). The metal is obtained by the Spedding process, in which powdered ThF4 is mixed with finely ...
ammonia-soda process
modern method of manufacturing the industrial alkali sodium carbonate, also known as soda ash. The process was devised and first put to commercial use by Ernest Solvay, who built a plant in 1865 in ...
vanadium processing
In the production of pure metal, V2O5 is reduced metallothermically by calcium or aluminum. In the calcium reduction, the exothermic reaction is carried out in a sealed vessel using calcium chloride ...
ethyl ether
well-known anesthetic, commonly called simply ether, an organic compound belonging to a large group of compounds called ethers; its molecular structure consists of two ethyl groups linked through an ...
food preservation
Early freezing methods were based on the principle that mixing salt with ice results in temperatures well below 0 C (32 F). By the end of the 19th century, this method was being used commercially in ...
agricultural technology
Liming to reduce soil acidity is practiced extensively in humid areas where rainfall leaches calcium and magnesium from the soil, thus creating an acid condition. Calcium and magnesium are major ...
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Related topics from Ask NewsTMEM16A, A Membrane Protein Associated with Calcium-Dependent ...
Science Magazine - Found Sep. 4, 2008
TMEM16A, A Membrane Protein Associated With Calcium-Dependent Chloride Channel Activity Antonella Caputo 1, Emanuela Caci 1, Loretta Ferrera 1,
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Biodegradable ballast product helps farmers and environment solve ...
Caledon Citizen - Found Aug. 21, 2008
Earth conscious farmers are disgusted with the damaging effects of calcium chloride tire ballast.
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Handheld Colorimeter
Processing & Control News Europe - Found 3 hours ago
Bromine; Calcium Hardness; Free Chlorine; Total Chlorine; Copper; Ozone; ... Chloride; Chlorine Dioxide;Chromium Hexavalent; Cyanuric Acid; ...
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Emerging Field Of Organ Printing
TETRA Technologies, Inc. Amends Stockholder Rights Plan
PR inside - Found 15 hours ago
TETRA is an oil and gas services company, including an integrated calcium chloride and brominated products manufacturing operation that...
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Winston-Salem Journal, N.C., Ask SAM column: Ask SAM
TMC Net - Found Nov. 8, 2008
Plastic folders made of PVC (polyvinyl chloride) are not recommended ... alkaline boxes or folders, which are buffered with calcium carbonate to
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Amifostine Significantly Lowers Risk For Cisp...
Pharmacy Practice News - Found Nov. 7, 2008
However, the addition of a prophylactic calcium chloride infusion (20 mg/kg) concurrently with the six-hour cisplatin infusion minimized the...
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Snow and Ice Removal: Deicing vs. Anti-icing
TETRA Technologies, Inc. Reports Third Quarter Earnings and Reviews ...
Printing organs
IAfrica.com - Found Nov. 7, 2008
... from drying out and to help cells form a 3D structure, Nakamura puts cells in alginate sodium and jets them into a calcium-chloride solution.
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