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noun
Sodium  n.  (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.
Sodium amalgam, an alloy of sodium and mercury, usually produced as a gray metallic crystalline substance, which is used as a reducing agent, and otherwise.
Sodium carbonate, a white crystalline substance, Na2CO3.10H2O, having a cooling alkaline taste, found in the ashes of many plants, and produced artifically in large quantities from common salt. It is used in making soap, glass, paper, etc., and as alkaline agent in many chemical industries. Called also sal soda, washing soda, or soda. Cf. Sodium bicarbonate, and Trona.
Sodium chloride, common, or table, salt, NaCl.
Sodium hydroxide, a white opaque brittle solid, NaOH, having a fibrous structure, produced by the action of quicklime, or of calcium hydrate (milk of lime), on sodium carbonate. It is a strong alkali, and is used in the manufacture of soap, in making wood pulp for paper, etc. Called also sodium hydrate, and caustic soda. By extension, a solution of sodium hydroxide.






Collaborative International Dictionary of English 0.48








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"Sodium" Quotes from Famous Books



... castor oil (fresh), one pound of boracic acid powder, one pound of boracic acid crystal, a bottle of glycerine, a bottle of white vaseline, a bath thermometer, some good whisky or brandy, aromatic spirits of ammonia, smelling salts, pure sodium bicarbonate, oil of cloves for an aching gum or toothache, a bottle of alkolol for mouth wash and gargle, and one ounce of the following ointment for use in the various emergencies which ...
— The Eugenic Marriage, Volume IV. (of IV.) - A Personal Guide to the New Science of Better Living and Better Babies • Grant Hague

... as experiment has thus far safely carried us, the atom of gold is a primordial element which remains an atom of gold and nothing else, no matter with what other atoms it is associated. So, too, of the atom of silver, or zinc, or sodium—in short, of each and every one of the seventy-odd elements. There are, indeed, as we shall see, experiments that suggest the dissolution of the atom—that suggest, in short, that the Daltonian atom is misnamed, being a structure that may, under certain conditions, be broken asunder. But these ...
— A History of Science, Volume 1(of 5) • Henry Smith Williams

... powder, and the whole thing was so peculiar that I decided to interview the gentleman myself; but first I made a point of getting our friend Strauss to analyze the powder. His report of the analysis shows it to be composed entirely of chloride of sodium or common salt, with a small quantity of some unknown vegetable matter which gives it a yellow color. Armed with this information, I called upon Rengee Sing at ...
— Montezuma's Castle and Other Weird Tales • Charles B. Cory

... on the Origin of Life Dr. Charlton Bastian tells of using two solutions. One consisted of two or three drops of dilute sodium silicate with eight drops of liquor fern pernitratis to one ounce of distilled water. The other was composed of the same amount of the silicate with six drops of dilute phosphoric acid and six grains of ammonium phosphate. He filled sterilised ...
— The Poisoned Pen • Arthur B. Reeve

... compounds analogous to nitro glycerine. It is probable that the presence of this oxycellulose has a marked influence upon the behavior of cotton, especially with dye matters. The earthy substances in cotton are also of importance. These are potassium carbonate, chloride, and sulphate, with similar sodium salts, and these vary in different samples of cotton, and possibly influence its properties to some extent. Then there are oily matters in the young fiber which, upon its ripening, become the waxy matter which Dr. Schunk has investigated. ...
— Scientific American Supplement, No. 620, November 19,1887 • Various

... that day by Dr. ALLEN, and he was found to consist principally of carbonate of Lime; Silicate of Potassa; Iodide of Magnesia; and Chloride of Sodium; with a strong trace of ...
— Punchinello, Vol. 1, No. 15, July 9, 1870 • Various

... Thus oxygen and hydrogen are elements when separate, or merely mixed, but they may be made to combine so as to form molecules, each consisting of two atoms of hydrogen and one of oxygen. In this condition they constitute water. So also chlorine and sodium are elements, the former a pungent gas, the latter a soft metal; and they unite together to form chloride of sodium or common salt. In the same way the element nitrogen combines with hydrogen, in the proportion ...
— Fragments of science, V. 1-2 • John Tyndall

... Captain Nemo, "my electricity is not everybody's. You know what sea-water is composed of. In a thousand grammes are found 96 1/2 per cent. of water, and about 2 2/3 per cent. of chloride of sodium; then, in a smaller quantity, chlorides of magnesium and of potassium, bromide of magnesium, sulphate of magnesia, sulphate and carbonate of lime. You see, then, that chloride of sodium forms a large ...
— Twenty Thousand Leagues under the Sea • Jules Verne

... table salt into the flame of a gas light, the flame becomes strongly yellow. If, then, we observe this yellow flame with the spectroscope, we find that its spectrum consists almost entirely of two bright yellow transverse lines. Chemically considered ordinary table salt is sodium chloride; that is to say, a compound of the metal sodium and the gas chlorine. Now if other compounds of sodium be experimented with in the same manner, it will soon be found that these two yellow lines are characteristic of sodium when turned into vapour ...
— Astronomy of To-day - A Popular Introduction in Non-Technical Language • Cecil G. Dolmage

... which might teach us something about the matter, and instead of letting sunlight fall on the prism, he made an artificial light by burning some stuff called sodium, and then allowed the band of coloured light to pass through the telescope; when he examined the spectrum that resulted, he found that, though numbers of lines to be found in the sun's spectrum were missing, there were a few lines here exactly matching a few of the ...
— The Children's Book of Stars • G.E. Mitton

... the local spread of oak wilt through natural root grafts. They found that the poisoning of a single healthy tree with sodium arsenite often killed as many as 15 other trees nearby, indicating that ...
— Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting - Rockport, Indiana, August 25, 26 and 27, 1952 • Various

... and importance, constituting, on an average, about one-third of the entire ash. Oxides of manganese and iron are always present; the former averaging about 3 per cent. and the latter 5 per cent. to 2 per cent. of the ash. Sodium, calcium, and chlorine are usually present in small and varying quantities. Sulphuric acid occurs in the ash of all fungi, and is remarkable for the great variation in quantity present in different species; e. g., ash of Helvella esculenta contains 1.58 per cent. H2SO4 while that of Agaricus ...
— Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. • George Francis Atkinson

... glow is from sodium vapor rockets fired from Wallops. The rockets allow visual measurement of meteorological data. People around here are used to seeing them to the southeast, over Wallops. When I saw that sightings had been made over Swamp Creek at the time of sodium shots, I got an idea. It wasn't much to go on, ...
— The Flying Stingaree • Harold Leland Goodwin

... sandstone sediments. Part are carried in solution, as for example lime carbonate and magnesium carbonate, which go to make up limestone and dolomite. Some of the dissolved substances are never redeposited, but remain in solution as salts in the sea, the most abundant of which is sodium chloride. Some of the dissolved substances of weathering, such as calcite, quartz, and iron oxide, are carried down and deposited in openings of the rocks, where they ...
— The Economic Aspect of Geology • C. K. Leith

... million years and the maximum age at ninety-six million years. Sir George Darwin, basing his calculation wholly upon astronomical data, puts the earth's age at a minimum of fifty-six million years. Joly arrived at his estimate by a calculation of the time required to produce the sodium content of the ocean, and concluded that the age of the earth is between eighty million and one hundred million years. Sollas is said to have made careful study of the matter and he finds the minimum to be eighty million, and the maximum age to be one hundred and fifty million ...
— Elementary Theosophy • L. W. Rogers

... lazy, yet stimulating. Because it is unspoilt, yet luxurious. Because the air there is filled with iodine and the sea with chloride of sodium. Because, with a whole universe of water, Atlantic City is dry. Because of its perfect rest ...
— Lippincott's Magazine of Popular Literature and Science - Vol. XI, No. 27, June, 1873 • Various

... to two salts, sodium hydrogen carbonate and sodium hydrogen phosphate; these cause the symptoms observed and infiltration of fat in organs, leading to feebleness of heart action. The method of securing and testing serum of patient was described (titration, a colorimetric method of measuring the percentage ...
— Scott's Last Expedition Volume I • Captain R. F. Scott

... high heat; the vapour of the metal is set free, and it yields its characteristic bands. The chlorides of the metals are particularly suitable for experiments of this character. Common salt, for example, is a compound of chlorine and sodium; in the electric lamp it yields the spectrum of the metal sodium. The chlorides of copper, lithium, and strontium yield, in like manner, the bands of ...
— Six Lectures on Light - Delivered In The United States In 1872-1873 • John Tyndall

... was found that incandescent solids and liquids (including the carbon glowing in a white gas flame) give continuous spectra; gases, except under enormous pressure, give bright lines. If sodium or common salt be thrown on the colourless flame of a spirit lamp, it gives it a yellow colour, and its spectrum is a bright yellow line agreeing in position with line ...
— History of Astronomy • George Forbes

... the electrons fired at them incessantly by the disintegrating emanation. Sir William Ramsay regards his experimental results as establishing a large probability in favour of the assertion that compounds of copper were transformed into compounds of lithium and sodium, and compounds of thorium, of cerium, and of certain other rare metals, into compounds of carbon. The experimental evidence in favour of this statement has not been accepted by chemists as conclusive. A way has, however, been opened which may lead ...
— The Story of Alchemy and the Beginnings of Chemistry • M. M. Pattison Muir

... habit need not hope to find an excuse for themselves in this fact: chronic ill-health betrays them. Water in organic relations with the body never exists uncombined with inorganic salts (especially sodium chloride) in any of the fluids, semi-solids, or solids of the body. It enters into the constitution of the tissues, not as pure water, but always in connection with inorganic salts. In case of great loss of blood by hemorrhage, a saline solution of six parts ...
— Intestinal Ills • Alcinous Burton Jamison

... and lead acetate, precipitate pectic acid from its solutions. Alkalies combine with it, and these compounds form brown substances, are but sparingly soluble in water, and many of them can be precipitated out by addition of neutral salts, like sodium and ...
— The Dyeing of Cotton Fabrics - A Practical Handbook for the Dyer and Student • Franklin Beech

... ingredients of Grapes are sugar (grape and fruit), gum, tannin, bitartrate of potash, sulphate of potash, tartrate of lime, magnesia, alum, iron, chlorides of potassium and sodium, tartaric, citric, racemic, and malic acids, some albumen, and azotized ...
— Herbal Simples Approved for Modern Uses of Cure • William Thomas Fernie

... muffins, figs, stewed prunes, and any article of diet which she knows from experience works upon her bowel. She should drink water freely; a glass of hot water sipped slowly on arising every morning or one-half hour before meals, is good. Mineral waters, Pluto, Apenta, Hunyadi, or one teaspoonful of sodium phosphate, or the same quantity of imported Carlsbad salts in a glass of hot water one-half hour before breakfast, answers admirably. If the salts cannot be taken a three- or five-grain, chocolate-coated, cascara sagrada tablet, may be taken before retiring, but other cathartics should ...
— The Eugenic Marriage, Volume I. (of IV.) - A Personal Guide to the New Science of Better Living and Better Babies • W. Grant Hague, M.D.

... inconsiderable height, rests at the bottom of the jar. Near the top the zinc plate, also flat or of slight depth, is supported. As exciting liquid a strong solution of copper sulphate lies at the bottom of the jar. This is overlaid by a solution of zinc sulphate, or sodium sulphate, which must be of considerably less specific gravity than that of the copper sulphate solution. In charging the jar one-tenth of a saturated solution of zinc sulphate mixed with water is sometimes used as the upper fluid. This may be first added so as to half fill ...
— The Standard Electrical Dictionary - A Popular Dictionary of Words and Terms Used in the Practice - of Electrical Engineering • T. O'Conor Slone

... ends the string of lagoons connected with the Sierras Ventana and Guamini. Numerous expeditions were formerly made there from Buenos Ayres, to collect the salt deposited on its banks, as the waters contain great quantities of chloride of sodium. ...
— In Search of the Castaways • Jules Verne

... by no means plentiful here," Tonlos replied, "but we seldom have to test for morlus, and we have plenty of radium salts for that purpose. We have never found any other use for radium—it is so active that it combines with water just as sodium does; it is very soft—a useless metal, and dangerous to handle. Our chemists have never been able to understand it—it is always in some kind of reaction no matter what they do, and still it gives off that very light gas, helium, and ...
— The Black Star Passes • John W Campbell

... published his "Elements of Agricultural Chemistry." During the same decade he conducted important investigations into the nature of chemical combination, and succeeded in isolating the elements potassium, sodium, strontium, magnesium, and chlorine. In 1812 he was knighted, and married Mrs. Apreece, nee Jane Kerr. In 1815 he investigated the nature of fire-damp and invented the Davy safety lamp. In 1818 he received a baronetcy, ...
— The World's Greatest Books - Volume 15 - Science • Various

... (Teichman's Crystals).—These are produced by heating a drop of blood, or a watery solution of it, with a minute crystal of sodium chloride on a glass slide and evaporating to dryness. A cover-glass is placed over this, and a drop of glacial acetic acid allowed to run in. It is again heated until bubbles appear. Crystals of haemin may now be detected by ...
— Aids to Forensic Medicine and Toxicology • W. G. Aitchison Robertson

... metals, namely, carbon and silicium. If to these we add certain compounds of sulphur with metals, in which the sulphur takes the place of oxygen, and forms sulphurets, and one other body,—common salt,—(which is a compound of sodium and chlorine), we have every substance which exists in a solid form upon our globe in any very considerable mass. Other compounds, innumerably various, are found only in ...
— Familiar Letters of Chemistry • Justus Liebig

... combine to form molecules they always combine in definite ways and in definite proportions. Carbon will combine with hydrogen, but will drop it if it can get oxygen. Oxygen will combine with iron or lead or sodium, but cannot be made to combine with fluorine. No more than two atoms of oxygen can be made to unite with one carbon atom, nor more than one hydrogen with one chlorine atom. There is thus an apparent choice ...
— The Machinery of the Universe - Mechanical Conceptions of Physical Phenomena • Amos Emerson Dolbear

... degree for every 600 feet increase in altitude. The boiling point may be increased by adding soluble substances to the water. A saturated solution of common baking soda boils at 220 deg. A saturated solution of chloride of sodium boils at 227 deg. A similar solution of sal-ammoniac boils at 238 deg. Of course such solutions cannot be used advantageously, except as a means of cooking articles placed in hermetically sealed vessels and immersed in ...
— Science in the Kitchen. • Mrs. E. E. Kellogg

... caused by convulsive movements of the diaphragm, due to some unknown irritation of the phrenic nerve. Bremuse gives an account of a man who literally split his diaphragm in two by the ingestion of four plates of potato soup, numerous cups of tea and milk, followed by a large dose of sodium bicarbonate to aid digestion. After this meal his stomach swelled to an enormous extent and tore the diaphragm on the right side, ...
— Anomalies and Curiosities of Medicine • George M. Gould

... new that it has not yet been given a fair trial. It is as follows:—If a fairly large quantity of blood can be got, it is burned, and the ash is analysed. Now, there are two salts always in blood—sodium and potassium salts. But, while the quantity of the former in human blood is usually twice that of the latter, it is six times as great in the sheep's blood, eight times as great in the cow's blood, and sixteen times ...
— The Harmsworth Magazine, v. 1, 1898-1899, No. 2 • Various

... means oxygen to the chemist; C means carbon; and Cl means chlorine, the poison gas so much used in the World War. The abbreviation stands for the Latin name of the element instead of for the English name, but they are often almost alike. The Latin name for the metal sodium, however, is natrum, and chemists always write Na when they mean sodium; this is fortunate, because S already stands for the element sulfur. Fe means iron (Latin, ferrum). But I stands for the element iodine. (The iodine you use when you get scratched is the element iodine dissolved ...
— Common Science • Carleton W. Washburne

... and to form an image of the spectrum a short distance in front of the eye, where the eye will see the spectrum or a sensitive dry-plate will photograph it. If we place an alcohol lamp immediately in front of the slit and sprinkle some common salt in the flame the two orange bright lines of sodium will be seen in the eyepiece, close together, as in the upper of the two spectra in the illustration. If we sprinkle thallium salt in the flame the green line of that element will be visible in the spectrum. If we take the lamp away and place a ...
— Popular Science Monthly Volume 86

... Saline substances—chlorides of sodium and potassium, sulphate and phosphate of potash and soda, and some other mineral matters occurring in food—supply the blood, juice of flesh, and various animal juices, with ...
— Cattle and Their Diseases • Robert Jennings

... answer, "except for the sodium chloride necessary. As you already know, sodium and chlorin are very rare throughout our system, therefore the force upon the food-supply took from your vessel the amount of salt required for the formula. We have been unable to synthesize atoms, ...
— Skylark Three • Edward Elmer Smith

... of MM. Riche and Bardy for the detection of alcohol in commercial methylenes, with 1/2 c.c. sulphuric acid at 18 deg. B., then with the same volume of permanganate (15 grms. per liter), and allowed to stand for one minute. He then adds 8 drops of sodium hyposulphite at 33 deg. B., and 1 c.c. of a solution of magenta, 1 decigrm. per liter. If any alcohol is present there appears within five minutes a distinct violet tinge. The presence of essential oils gives rise to a partial reduction of the permanganate ...
— Scientific American Supplement, No. 288 - July 9, 1881 • Various

... caught at this absurd suggestion, and my mind ran over the contents of my little bottles. If I had known his character, some sodium bromide in his morning feed might, by this time, have mollified ...
— The Magic Egg and Other Stories • Frank Stockton

... moisture by drying 100 grains at 212 deg. F. till constant, and taking this dried portion for estimation of the resin in the way just stated. The alcoholic extract was evaporated to dryness over a water-bath, the residue dissolved in solution of sodium carbonate, and the resin precipitated by dilute sulphuric acid (these reagents being chosen as the best after numerous trials with others), added in the slightest possible excess. The resin was collected on a tared double filter paper, washed with distilled water until the washings ...
— Scientific American Supplement, Vol. XXI., No. 531, March 6, 1886 • Various

... "Box No. 48a," Gypsum from Sharm Yaharr. Partly semi-transparent and granular, and partly dull white and opaque. It was found to be hydrated sulphate of lime, or gypsum, with carbonate of lime, and some sand, magnesia, and chloride of sodium. ...
— The Land of Midian, Vol. 1 • Richard Burton

... of these esters with alcoholic sodium hydrate, anomalous results are obtained. The acid numbers, determined by titration in the usual way, are 10-20 p.ct. in excess of the theoretical, the difference increasing with the time of boiling. Similarly the residual cellulose shows ...
— Researches on Cellulose - 1895-1900 • C. F. Cross

... in solution, whereas any virtue of this kind which indigo-paste possesses is more likely due to the sulphuric acid which it contains than to the indigo itself. The essential part of the paste required is the sulpho-indigodate of sodium, now commonly called indigo-carmine. He further remarks that the stability of an ink precipitate depends upon the amount of iron which it contains and which on no account should be less than eight per cent; he adds rightly, if gallic acid be preferably used in substitution for ...
— Forty Centuries of Ink • David N. Carvalho

... at cleaning and refining raw coffee, and which has been the subject of much polemical discussion, is that of Thum[120]. It entails the placing of the green beans in a perforated drum; just covering them with water, or a solution of sodium chloride or sodium carbonate, at 65 deg. to 70 deg. C.; and subjecting them to a vigorous brushing for from 1 to 5 minutes, according to the grade of coffee being treated. The value of this method is somewhat doubtful, as it would ...
— All About Coffee • William H. Ukers

... and gather to the eyes" from "the depths of some divine despair." On the other hand they may be what they were to a certain character in Balzac. The physicist Baltazar retorts in answer to an outburst of tears, "Ah! tears! I have analysed them; they contain a little phosphate of lime, chloride of sodium, mucin, and water!" I do not happen to know if that is a correct analysis, but I do know that both these aspects of tears are true aspects. There is nothing contradictory about them. The one is the aspect of objective science; the other—the human ...
— Platform Monologues • T. G. Tucker

... ii., chap. xxii). Disengages sulphuretted hydrogen when fresh.—This water was inodorous when the bottle was opened. The saline matter in solution was considerably less than in the Soorujkoond water, but like that consisted of chloride of sodium and sulphate of soda. Its alkaline character suggests the probability of its containing carbonate of ...
— Himalayan Journals (Complete) • J. D. Hooker

... supplied chiefly by springs but also in part by the run-off and from the solution of the rocks of its bed. More than half the dissolved solids in the water of the average river consists of the carbonates of lime and magnesia; other substances are gypsum, sodium sulphate (Glauber's salts), magnesium sulphate (Epsom salts), sodium chloride (common salt), and even silica, the least soluble of the common rock-making minerals. The amount of this invisible load is surprisingly large. The Mississippi, for example, transports each year 113,000,000 ...
— The Elements of Geology • William Harmon Norton



Words linked to "Sodium" :   pentobarbital sodium, sodium benzoate, rock salt, brine, seawater, halite, sodium bichromate, saltwater, diclofenac sodium, sodium sulfate, sodium fluoride, meclofenamate sodium, thiopental sodium, sodium silicate, sodium thiosulphate, sodium orthophosphate, potassium sodium tartrate, sodium hypochlorite, sodium bicarbonate, sodium salicylate, sodium thiopental, tribasic sodium phosphate, Na, sodium thiosulfate, sodium-vapour lamp, sodium nitrate, sodium carbonate, sodium chlorate, sodium iodide, naproxen sodium, sodium pyrophosphate, atomic number 11, sodium lauryl sulphate, sodium dichromate, sodium hydroxide



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