Crossword clues for nitrocellulose
nitrocellulose
The Collaborative International Dictionary
Gun \Gun\ (g[u^]n), n. [OE. gonne, gunne; of uncertain origin; cf. Ir., Gael., & LL. gunna, W. gum; possibly (like cannon) fr. L. canna reed, tube; or abbreviated fr. OF. mangonnel, E. mangonel, a machine for hurling stones.]
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A weapon which throws or propels a missile to a distance; any firearm or instrument for throwing projectiles, consisting of a tube or barrel closed at one end, in which the projectile is placed, with an explosive charge (such as guncotton or gunpowder) behind, which is ignited by various means. Pistols, rifles, carbines, muskets, and fowling pieces are smaller guns, for hand use, and are called small arms. Larger guns are called cannon, ordnance, fieldpieces, carronades, howitzers, etc. See these terms in the Vocabulary.
As swift as a pellet out of a gunne When fire is in the powder runne.
--Chaucer.The word gun was in use in England for an engine to cast a thing from a man long before there was any gunpowder found out.
--Selden. (Mil.) A piece of heavy ordnance; in a restricted sense, a cannon.
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pl. (Naut.) Violent blasts of wind.
Note: Guns are classified, according to their construction or manner of loading as rifled or smoothbore, breech-loading or muzzle-loading, cast or built-up guns; or according to their use, as field, mountain, prairie, seacoast, and siege guns.
Armstrong gun, a wrought iron breech-loading cannon named after its English inventor, Sir William Armstrong.
Big gun or Great gun, a piece of heavy ordnance; hence (Fig.), a person superior in any way; as, bring in the big guns to tackle the problem.
Gun barrel, the barrel or tube of a gun.
Gun carriage, the carriage on which a gun is mounted or moved.
Gun cotton (Chem.), a general name for a series of explosive nitric ethers of cellulose, obtained by steeping cotton in nitric and sulphuric acids. Although there are formed substances containing nitric acid radicals, yet the results exactly resemble ordinary cotton in appearance. It burns without ash, with explosion if confined, but quietly and harmlessly if free and open, and in small quantity. Specifically, the lower nitrates of cellulose which are insoluble in ether and alcohol in distinction from the highest (pyroxylin) which is soluble. See Pyroxylin, and cf. Xyloidin. The gun cottons are used for blasting and somewhat in gunnery: for making celluloid when compounded with camphor; and the soluble variety (pyroxylin) for making collodion. See Celluloid, and Collodion. Gun cotton is frequenty but improperly called nitrocellulose. It is not a nitro compound, but an ester of nitric acid.
Gun deck. See under Deck.
Gun fire, the time at which the morning or the evening gun is fired.
Gun metal, a bronze, ordinarily composed of nine parts of copper and one of tin, used for cannon, etc. The name is also given to certain strong mixtures of cast iron.
Gun port (Naut.), an opening in a ship through which a cannon's muzzle is run out for firing.
Gun tackle (Naut.), the blocks and pulleys affixed to the side of a ship, by which a gun carriage is run to and from the gun port.
Gun tackle purchase (Naut.), a tackle composed of two single blocks and a fall.
--Totten.Krupp gun, a wrought steel breech-loading cannon, named after its German inventor, Herr Krupp.
Machine gun, a breech-loading gun or a group of such guns, mounted on a carriage or other holder, and having a reservoir containing cartridges which are loaded into the gun or guns and fired in rapid succession. In earlier models, such as the Gatling gun, the cartridges were loaded by machinery operated by turning a crank. In modern versions the loading of cartidges is accomplished by levers operated by the recoil of the explosion driving the bullet, or by the pressure of gas within the barrel. Several hundred shots can be fired in a minute by such weapons, with accurate aim. The Gatling gun, Gardner gun, Hotchkiss gun, and Nordenfelt gun, named for their inventors, and the French mitrailleuse, are machine guns.
To blow great guns (Naut.), to blow a gale. See Gun, n., 3.
Wiktionary
n. (context organic compound English) A cotton-like material, made from cellulose by the action of nitric acid and sulphuric acids, used in the manufacture of explosives, collodion etc.
WordNet
n. nitric acid esters; used in lacquers and explosives [syn: cellulose nitrate, guncotton, nitrocotton]
Wikipedia
Nitrocellulose (also known as cellulose nitrate, flash paper, flash cotton, guncotton, and flash string) is a highly flammable compound formed by nitrating cellulose through exposure to nitric acid or another powerful nitrating agent. When used as a propellant or low-order explosive, it was originally known as guncotton.
Partially nitrated cellulose has found uses as a plastic film and in inks and wood coatings. In 1862 the first man-made plastic, nitrocellulose, (branded Parkesine) was created by Alexander Parkes from cellulose treated with nitric acid and a solvent. In 1868, American inventor John Wesley Hyatt developed a plastic material he named Celluloid, improving on Parkes' invention by plasticizing the nitrocellulose with camphor so that it could be processed into finished form and used as a photographic film. Celluloid was used by Kodak, and other suppliers, from the late 1880s as a film base in photography, X-ray films, and motion picture films, and was known as nitrate film. After numerous fires caused by unstable nitrate films, "safety film" ( cellulose acetate film) started to be used from the 1930s in the case of X-ray stock and from 1948 for motion picture film.
Usage examples of "nitrocellulose".
For example: when sawdust is nitrated, it becomes nitrocellulose, and is used in smokeless powder.
Along with bags of cotton ready to be turned into nitrocellulose, and multiple Casio watches, wires, connectors, lightbulbs, and fuses, Yousef purchased a series of small portable 60-Hz Tecnogas model Tec-6 heating stoves.
He discussed the chemistry of making nitrocellulose, and the use of Casio watches as timers.
Yousef told Parker to take the nitrocellulose with him back to Pakistan and meet him in five days.
Attorney Garcia and his cocounsel, Dietrich Snell, built a meticulous case that put Yousef inside PAL Flight 434 as he built the bomb, inside the Dona Josefa as he constructed the Casio timers, and inside Room 16 at the Su Casa as he stuffed nitrocellulose into toy cars in a desperate attempt to perfect the Bojinka plot and blow up U.
He opened the center drawer of a desk in what was to have been his HQ, a cleared secure building, and five pounds of nitroglycerine and nitrocellulose blew him open and spread him all over the room, along with a colonel and his sergeant major.
Equipment ranging from simple column chromatography setups to sophisticated liquid scintillation counters sat atop the counter, alongside agar-filled petri dishes and folded nitrocellulose filters.
But the nitrocellulose caseless cartridges were all used up in discharging the 4.
And its ammunition uses a propellant whose cook-off point is one hundred degrees higher than the standard nitrocellulose powders which-was She waved a dismissing hand.
He found that smokeless power is produced by colloiding nitrocellulose with special solvents followed by a drying process and that the nitroglycerine bonded with the nitrocellulose and would not separate in storage.
Slower-firing and less destructive than a tribarrel they might have been, but a thousand rounds per minute, even from an obsolete nitrocellulose weapon, were quite sufficient to turn a human body into a finely suspended red mist.
A person attempting to make this should use 92 percent nitroglycerin and 8 percent nitrocellulose, and pray.
We pressed a series of gelatin-coated photographic papers onto the comforter with a hot iron and then treated the papers to find the presence of nitrates, which would be found if there existed nitrocellulose on the comforter that had been incompletely burned.
The radio was on all day as Tatiana filled her flamethrowers with thick petroleum and nitrocellulose, while through the open double doors the metal machine poured projectiles of different sizes onto the conveyor belt.
Instead of the usual beaker full of liquid BZ reaction, he prepared a tall stack of porous nitrocellulose filter papers saturated with the same chemicals.