sodium

Definitions

  • WordNet 3.6
    • n sodium a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
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Webster's Revised Unabridged Dictionary
  • Interesting fact: 'Crack' is the street name given to cocaine that has been processed from cocaine hydrochloride to a free base for smoking. Rather than requiring the more volatile method of processing cocaine using ether, crack cocaine is processed with ammonia or sodium bicarbonate (baking soda) and water and heated to remove the hydrochloride, thus producing a form of cocaine that can be smoked.
    • n Sodium (Chem) A common metallic element of the alkali group, in nature always occuring combined, as in common salt, in albite, etc. It is isolated as a soft, waxy, white, unstable metal, so highly reactive that it combines violently with water, and to be preserved must be kept under petroleum or some similar liquid. Sodium is used combined in many salts, in the free state as a reducer, and as a means of obtaining other metals (as magnesium and aluminium) is an important commercial product. Symbol Na (Natrium). Atomic weight 22.990. Specific gravity 0.97.
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Century Dictionary and Cyclopedia
  • Interesting fact: If the goverment passed a law that all the outdoor lighting in the united states had to be provided by low pressure sodium light bulbs, then they would save enough money to pay for evey college students tuition.
    • n sodium Chemical symbol, Na (natrium); atomic weight, 23. The metallic base of the alkali soda. See soda and metallurgy It was first isolated by Davy, in 1807, by electrolysis, and is at present obtained on a large scale by igniting sodium carbonate with charcoal. Sodium is a silver-white metal with a high luster, but it oxidizes rapidly on exposure to moist air. Heated in the air, it burns rapidly with a bright-yellow fiame, very characteristic of the metal; thrown into cold water, it oxidizes, but does not become hot enough to set the evolved hydrogen on fire, as potassium does; with hot water, ignition of the hydrogen takes place. Its specific gravity at 56° is 0.9735; at the ordinary temperature it has the consistency of wax; at 204° it melts, and forms a liquid resembling mercury in appearance. Next to silver, copper, and gold, it is, of the metals, the best conductor of heat and electricity; next to cæsium, rubidium, and potassium, it is the most electropositive of the metals. It is extensively used in the laboratory as a powerful reducing agent; it is closely analogous to potassium in its chemical relations. Two of its compounds are very widely diffused in nature, and of the highest importance from various points of view; these are common salt and sodium carbonate, or soda.
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Chambers's Twentieth Century Dictionary
  • Interesting fact: Monosodium glutamate can be found in mushrooms thanx liz chell, tomatoes and meat. MSG is safe to consume, and is essentially made of only water, sodium and glutamate. It contains only 1/3 the amount of sodium found in table salt, and can reduce salt intake in recipes.
    • Sodium a yellowish-white metal, the base of soda
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Etymology

Webster's Revised Unabridged Dictionary
NL., fr.E. soda,
Chambers's Twentieth Century Dictionary
It. soda—L. solida, firm.

Usage

In literature:

Before this experiment sodium sold at $2 a pound; after it sodium sold at twenty cents a pound.
"Creative Chemistry" by Edwin E. Slosson
The production of salt-cake or crude sodium sulphate is carried out in two stages.
"The Chemistry of Hat Manufacturing" by Watson Smith
If the potassium salt is not tolerated, it may be replaced by the ammonium or sodium iodide.
"Manual of Surgery" by Alexis Thomson and Alexander Miles
The density of thorium as obtained by reducing the anhydrous chloride by means of sodium was found by Chydenius, 7.657 to 7.795.
"Scientific American Supplement, No. 365, December 30, 1882" by Various
After neutralizing a solution of sodium hydroxide with nitric acid, there remained after evaporation 100 g. of sodium nitrate.
"An Elementary Study of Chemistry" by William McPherson
He'd get back his strength with a proper sodium level in his blood.
"Sand Doom" by William Fitzgerald Jenkins
Sodium chloride 80 grams 60 grams.
"Practical Taxidermy" by Montagu Browne
Weigh out salt, 5 grammes, and sodium phosphate, 3 grammes, and dissolve in the mixture in the flask.
"The Elements of Bacteriological Technique" by John William Henry Eyre
Cool, nearly neutralize with sodium hydroxid solution, and make up to 500 cc.
"All About Coffee" by William H. Ukers
The most abundant metal is sodium and the most abundant acid is hydrochloric.
"Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1" by Various
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In news:

The company manufactures technical grade sodium carboxymethylcellulose, which is used in consumer products such as baby diapers and detergents.
Choose the lowest fat, lowest sodium version of whatever chip you like, and remember a 1-ounce serving is about 12-20 chips .
The Department of Public Works Traffic Division converts streetlights on Kinoole Street from the current low-pressure sodium lamps to LED lamps Friday afternoon.
0The Drug Enforcement Administration seized Georgia's entire supply of sodium thiopental.
You eat too much sodium--The recommended daily allowance for sodium is 2,300 mg.
There is a national shortage of sodium thiopental, which has been used already in executions in Oklahoma and Ohio.
Many times they're loaded with fat and sodium, so be careful with what you order.
Swanson low sodium MSG free chicken broth 1 c.
While doubts increase about soy and sodium, there's no debating the wisdom of developing heart-healthy foods.
These six foods can hide a lot of sodium.
But did you know a lot of common foods are packed with excess sodium.
A new study looking at the connection between sodium intake and the blood pressure of American children and teens shows an urgent need to limit salt in foods consumed by young people, according to the American Heart Association.
Keeping sodium intake in check important for chronic conditions.
1 Tbsp reduced-sodium Worcestershire sauce.
0National School Lunch regulations cut calories, fat, and sodium in school lunches .
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In science:

Negative heat capacity for a cluster of 147 sodium stoms.
Heat can flow from cold to hot in Microcanonical Thermodynamics of finite systems. The microscopic origin of condensation and phase separations
C , sodium, potassium, leakage conductance GN a , GK and GL respectively.
Relevance of Quantum Mechanics in Circuit Implementation of Ion channels in Brain Dynamics
Density-functional theory has been applied to investigate systematics of sodium clusters Nan in the size range of n= 39-55. A clear evolutionary trend in the growth of their ground-state geometries emerges.
The electronic structures, the equilibrium geometries and finite temperature properties of Na_n (n=39-55)
The results also firmly establish the size-sensitive nature of the heat capacities in sodium clusters.
The electronic structures, the equilibrium geometries and finite temperature properties of Na_n (n=39-55)
The ab initio density-functional method has been applied to investigate systematic evolutionary trends in the ground state geometries of the sodium clusters in the size range of n=39-55.
The electronic structures, the equilibrium geometries and finite temperature properties of Na_n (n=39-55)
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