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From Wikipedia, the free encyclopedia

Cosmetic pads made of nitrocellulose
Other names
Cellulose nitrate; Flash paper; Flash cotton; Flash string; Gun cotton; Collodion; Pyroxylin
  • none


Appearance Yellowish white cotton-like filaments
Melting point 160 to 170 °C (320 to 338 °F; 433 to 443 K) (ignites)
NFPA 704
Flammability code 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g., gasolineHealth code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroformReactivity code 3: Capable of detonation or explosive decomposition but requires a strong initiating source, must be heated under confinement before initiation, reacts explosively with water, or will detonate if severely shocked. E.g., fluorineSpecial hazards (white): no codeNFPA 704 four-colored diamond
Flash point 4.4 °C (39.9 °F; 277.5 K)
Lethal dose or concentration (LD, LC):
10 mg/kg (mouse, IV)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is ☑Y☒N ?)
Infobox references

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.[2] In 1855, the first man-made plastic, nitrocellulose (branded Parkesine, patented in 1862), 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 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.

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  • ✪ Nitrocellulose LEGO?
  • ✪ How to Make Flash Paper - Magic Trick Fireballs (Nitrocellulose)
  • ✪ How To Make A Desktop Nitrocellulose Cannon - NightHawkInLight
  • ✪ DIY Flash Cotton Burns Super Fast!
  • ✪ The Home Scientist 017 - Synthesize Nitrocellulose (Guncotton)


Hey, what's up guys welcome back to another day experimenting with pyrotechnics Aujormom We're going to be mixing a little nail polish remover with some ping pong balls to make nitrocellulose lacquer Now for a lot of my pyrotechnic experiments I've used this Visco fuse; this is falling leaves But the problem with it is not waterproof which means if it got wet or got submerged in a puddle of water the fuse would go out So the purpose of today's Experiment is to use nail polish remover and ping pong balls to make a nitro cellulose coating which will hopefully make it so our fuses can burn underwater Seriously apparently it burns underwater. That's no good That was really interesting because last week when I was testing this experiment all the fuses I put in water went out completely but today they all seem to be burning just fine I've tried four different fuses and all of them burn underwater, so the results can be very inconsistent, but that's okay We're going to go ahead and make nitro lacquer anyway Because it's a really cool experiment and just because we can so here's what we want to do We want to get some kind of a small jar with a lid and a couple of these ping-pong balls you get at a sporting Goods store the ping pong balls from the Dollar Store will not work They need to be these professional branded type thing pong balls to get a sporting Goods store now if you've got the right kind of ping pong balls There's a really cool trick. You might already be familiar with it happens when you touch it with a flame Ping pong balls are highly flammable they go up in flames very very quickly and leave very little residue And that's because these things are made mostly of Nitrocellulose So to make a nitro set of those lacquer all we have to do is take a few of these ping pong balls and use Some nail polish remover to dissolve them Things are going to happen a lot quicker and easier if we start shredding our ping pong balls into smaller pieces So take that like a pair of scissors and cut them up into the smallest pieces you can get and drop them into a small jar So here we are guys after about two minutes We've got two ping-pong balls Reduced to very small pieces now all we have to do is transfer these pieces to our small glass container add a little bit of nail polish remover and screw on The lid then shake it up and wait How much nail polish remover do we add that is the question I guess we're going to experiment and find out I'm going to pour in enough just to come to the top of those pieces All right, it's been a couple of minutes, and if we take the lid off now and take a look inside You can see our crispy flakes of Ping-pong balls have turned into a goo Kind of turn Mushy here And I suppose the longer we let that fit in the acetone the thinner and runnier it will become But this is the goo that we're looking for We're going to thin that out a little bit more you can see our ping-pong balls are almost turned into a paste Looks like a paper mache paste so that's pretty cool guys you can see that after just about three minutes our ping-pong balls have dissolved in the nail polish remover to Form this goopy paste, which kind of looks like wallpaper paste now if we add a little bit more nail polish remover we can make this liquid even runnier and in contrast if we let it sit out for a while the fumes will vaporize off and make the substance hard again So theoretically I suppose you can cast ping-pong plastic into just about any shape you want alright Let's open this thing up until we got here ooh, nice and creamy almost looks like school glue pyrotechnic Elmer's glue I kept adding nail polish remover until all the big chunks dissolved and now it's very smooth very runny And it's almost like paint which means we could use it as a pyrotechnic coating Nexus Titleist lego, haha! I love it The nail Polish remover is extremely flammable ping-pong balls are extremely flammable. Do you think this stuff mixed together is extremely flammable? oh yeah, very flammable so we have just created a pyrotechnic paint that makes me wonder what we could paint with it Look at a nice, shiny surface that creates pyrotechnic paint that looks cool, the patterns it burns Little Nitro Legos It's amazing that when I put the fuse into the lacquer here it softens up and becomes extremely flexible Which makes me wonder if the coating isn't already infused with the nitrocellulose lacquer? I'm betting it probably is Now the lacquer has hardened you can see the fuse's gone sniff again; doesn't send like it did before Now it goes out. It works great before we apply the coating That's weird The nice thing about it is how quickly that burnt off from a little paint So now here we are guys we turned nail polish remover and some ping- pong balls into a white mushy goop that I'm going to call pyrotechnic paint and there are a few interesting things about its characteristics that we learned during these experiments today We started our experiments today with ping-pong balls and nail polish remover and the intent to make a waterproof coating for fuses But in testing our fuses we found that they already burn underwater and that's probably because they've already got nitro lacquer built into them we also found that we could change the consistency of our lacquer by adding more nail polish remover and stirring it in or just by letting it sit out for a while so the acetone could evaporate next we tried smearing the stuff on a piece of wood and found that it actually does work as a lacquer to help seal and preserve the finish But we also realize that this lacquer is extremely flammable and while it can be poured into any mold or painted on any surface, if it comes into contact with any kind of a spark or a flame, things can get pretty hot pretty fast now for one final experiment, I wondered if we could make a firecracker that would burn off and explode underwater as well But in testing those we found that they just went off by themselves anyway in a spectacular fashion mind you Ouch my ears. woah! Dang! So there you have it guys now you know how to turn nail polish remover and ping pong balls into pyrotechnic paint Thanks for joining me for this set of experiments. I'll be looking for you the next one. Talk to you then! Let's just move that out of the way Hey guys, thanks for watching and remember. I'm giving away prizes now on every new video All you have to do to qualify is Subscribe to my channel, ring the bell, and select to be notified when my next videos get release the secret link to my giveaways will Be pinned in the comments for the first 12 hours if you like what I'm doing So your support right now by giving this video a big thumbs up and share with a friend. I love you back! I'll see you next time



An M13 rocket for the Katyusha launcher on display in the Musée de l'Armée: Its solid-fuel rocket motor was prepared from nitrocellulose.
An M13 rocket for the Katyusha launcher on display in the Musée de l'Armée: Its solid-fuel rocket motor was prepared from nitrocellulose.
A nitrocellulose membrane stained with Ponceau S dye for protein detection during western blotting
A nitrocellulose membrane stained with Ponceau S dye for protein detection during western blotting
Table tennis ball, prepared from nitrocellulose (Celluloid)
Table tennis ball, prepared from nitrocellulose (Celluloid)


Henri Braconnot discovered in 1832 that nitric acid, when combined with starch or wood fibers, would produce a lightweight combustible explosive material, which he named xyloïdine.[3] A few years later in 1838, another French chemist, Théophile-Jules Pelouze (teacher of Ascanio Sobrero and Alfred Nobel), treated paper and cardboard in the same way.[4] Jean-Baptiste Dumas obtained a similar material, which he called nitramidine.[5] These substances were highly unstable and were not practical explosives.

However, around 1846 Christian Friedrich Schönbein, a German-Swiss chemist, discovered a more practical solution.[6]

As he was working in the kitchen of his home in Basel, he spilled a mixture of nitric acid (HNO3) and sulfuric acid (H2SO4) on the kitchen table. He reached for the nearest cloth, a cotton apron, and wiped it up. He hung the apron on the stove door to dry, and as soon as it was dry, a flash occurred as the apron ignited. His preparation method was the first to be widely imitated—one part of fine cotton wool to be immersed in 15 parts of an equal blend of sulfuric and nitric acids. After two minutes, the cotton was removed and washed in cold water to set the esterification level and remove all acid residue. It was then slowly dried at a temperature below 40 °C (104 °F). Schönbein collaborated with the Frankfurt professor Rudolf Christian Böttger, who had discovered the process independently in the same year. By coincidence, a third chemist, the Brunswick professor F. J. Otto had also produced guncotton in 1846 and was the first to publish the process, much to the disappointment of Schönbein and Böttger.[7][full citation needed]

The process uses nitric acid to convert cellulose into cellulose nitrate and water:

3 HNO3+ C6H10O5 H2SO4 C6H7(NO2)3O5 + 3 H2O

The sulfuric acid is present as a catalyst to produce the nitronium ion, NO+
. The reaction is first order and proceeds by electrophilic substitution at the C−OH centers of the cellulose.[8]

Pure nitrocellulose.
Pure nitrocellulose.
Deflagration test of nitrocellulose in slow motion.

Guncotton is made by treating cotton (used as the source of cellulose) with concentrated sulfuric acid and 70% nitric acid[clarification needed] cooled to 0 °C to produce cellulose trinitrate. While guncotton is dangerous to store, the hazards it presents can be reduced by storing it dampened with various liquids, such as alcohol. For this reason, accounts of guncotton usage dating from the early 20th century refer to "wet guncotton".

The power of guncotton made it suitable for blasting. As a projectile driver, it had around six times the gas generation of an equal volume of black powder and produced less smoke and less heating.

The patent rights for the manufacture of guncotton were obtained by John Hall & Son in 1846, and industrial manufacture of the explosive began at a purpose-built factory at Marsh Works in Faversham, Kent, a year later. However, the manufacturing process was not properly understood and few safety measures were put in place. A serious explosion in July of that year killed almost two dozen workers, resulting in the immediate closure of the plant. Guncotton manufacture ceased for over 15 years until a safer procedure could be developed.[9]

Further research indicated the importance of very careful washing of the acidified cotton. Unwashed nitrocellulose (sometimes called pyrocellulose) may spontaneously ignite and explode at room temperature, as the evaporation of water results in the concentration of unreacted acid.[10]

The British chemist Frederick Augustus Abel developed the first safe process for guncotton manufacture, which he patented in 1865. The washing and drying times of the nitrocellulose were both extended to 48 hours and repeated eight times over. The acid mixture was changed to two parts sulfuric acid to one part nitric. Nitration can be controlled by adjusting acid concentrations and reaction temperature. Nitrocellulose is soluble in a mixture of alcohol and ether until nitrogen concentration exceeds 12%. Soluble nitrocellulose, or a solution thereof, is sometimes called collodion.[11]

Various types of smokeless powder, consisting primarily of nitrocellulose
Various types of smokeless powder, consisting primarily of nitrocellulose

Guncotton containing more than 13% nitrogen (sometimes called insoluble nitrocellulose) was prepared by prolonged exposure to hot, concentrated acids[11] for limited use as a blasting explosive or for warheads of underwater weapons such as naval mines and torpedoes.[10] Safe and sustained production of guncotton began at the Waltham Abbey Royal Gunpowder Mills in the 1860s, and the material rapidly became the dominant explosive, becoming the standard for military warheads, although it remained too potent to be used as a propellant. More-stable and slower-burning collodion mixtures were eventually prepared using less-concentrated acids at lower temperatures for smokeless powder in firearms. The first practical smokeless powder made from nitrocellulose, for firearms and artillery ammunition, was invented by French chemist Paul Vieille in 1884.

Jules Verne viewed the development of guncotton with optimism. He referred to the substance several times in his novels. His adventurers carried firearms employing this substance. The most noteworthy reference is in his From the Earth to the Moon, in which guncotton was used to launch a projectile into space.


Nitrocellulose film on a light box, showing deterioration, from Library and Archives Canada collection
Nitrocellulose film on a light box, showing deterioration, from Library and Archives Canada collection

On May 2, 1887, Hannibal Goodwin filed a patent for "a photographic pellicle and process of producing same ... especially in connection with roller cameras", but the patent was not granted until September 13, 1898.[12] In the meantime, George Eastman had already started production of roll-film using his own process.

Nitrocellulose was used as the first flexible film base, beginning with Eastman Kodak products in August, 1889. Camphor is used as a plasticizer for nitrocellulose film, often called nitrate film. Goodwin's patent was sold to Ansco, which successfully sued Eastman Kodak for infringement of the patent and was awarded $5,000,000 in 1914 to Goodwin Film.[13]

Nitrate film was used for X-ray photography for some time, where its flammability hazard was most acute, thus in 1933, became disused for such purposes, along with its uses for motion-picture films in 1951, where it was replaced by safety film with an acetate base. Nitrocellulose X-ray film ignition was the cause behind the Cleveland Clinic fire of 1929 in Cleveland, Ohio, which claimed the lives of 123 people during the fire, and a number who were rescued, but died several days later due to inhalation of the toxic smoke.[14]

Decayed nitrate film. EYE Film Institute Netherlands
Decayed nitrate film. EYE Film Institute Netherlands

The use of nitrocellulose film for motion pictures led to the requirement for fireproof projection rooms with wall coverings made of asbestos. A training film for projectionists included footage of a controlled ignition of a reel of nitrate film, which continued to burn when fully submerged in water.[15] Unlike many other flammable materials, nitrocellulose does not need air to keep burning, as the material contains sufficient oxygen within its molecular structure. Once burning, it is extremely difficult to extinguish. Immersing burning film in water may not extinguish it, and could actually increase the amount of smoke produced.[16][17] Owing to public safety precautions, the London Underground forbade transport of movies on its system until well past the introduction of safety film.

Cinema fires caused by ignition of nitrocellulose film stock were the cause of the 1926 Dromcolliher cinema tragedy in County Limerick in which 48 people died and the 1929 Glen Cinema disaster in Paisley, Scotland, which killed 69 children. Today, nitrate film projection is normally highly regulated and requires extensive precautionary measures including extra projectionist health and safety training. Projectors certified to run nitrate films have many precautions, among them the chambering of the feed and takeup reels in thick metal covers with small slits to allow the film to run through. The projector is modified to accommodate several fire extinguishers with nozzles aimed at the film gate. The extinguishers automatically trigger if a piece of flammable fabric placed near the gate starts to burn. While this triggering would likely damage or destroy a significant portion of the projection components, it would prevent a fire which could cause far greater damage. Projection rooms may be required to have automatic metal covers for the projection windows, preventing the spread of fire to the auditorium. The Dryden Theatre at the George Eastman Museum is one of a few theaters in the world that is capable of safely projecting nitrate films,[18] and regularly screens films to the public.[19]

Nitrocellulose was found to gradually decompose, releasing nitric acid and further catalyzing the decomposition (eventually into a flammable powder). Decades later, storage at low temperatures was discovered as a means of delaying these reactions indefinitely. The great majority of films produced during the early 20th century are thought to have been lost either through this accelerating, self-catalyzed disintegration or through studio warehouse fires. Salvaging old films is a major problem for film archivists (see film preservation).

Nitrocellulose film base manufactured by Kodak can be identified by the presence of the word 'nitrate' in dark letters along one edge; the word only in clear letters on a dark background indicates derivation from a nitrate base original negative or projection print, but the film in hand itself may be a later print or copy negative, made on safety film. Acetate film manufactured during the era when nitrate films were still in use was marked 'Safety' or 'Safety Film' along one edge in dark letters. 8, 9.5, and 16 mm film stocks, intended for amateur and other nontheatrical use, were never manufactured with a nitrate base in the west, but rumors exist of 16 mm nitrate film having been produced in the former Soviet Union and/or China.[20]

Cellulose is treated with sulfuric acid and potassium nitrate to give cellulose mononitrate. This was used commercially as 'celluloid', a highly flammable plastic used in the first half of the 20th century for lacquers and photographic film.[citation needed]

Nitrate dominated the market for professional-use 35 mm motion picture film from the industry's origins to the early 1950s. While cellulose acetate-based so-called "safety film", notably cellulose diacetate and cellulose acetate propionate, was produced in the gauge for small-scale use in niche applications (such as printing advertisements and other short films to enable them to be sent through the mails without the need for fire safety precautions), the early generations of safety film base had two major disadvantages relative to nitrate: it was much more expensive to manufacture, and considerably less durable in repeated projection. The cost of the safety precautions associated with the use of nitrate was significantly lower than the cost of using any of the safety bases available before 1948. These drawbacks were eventually overcome with the launch of cellulose triacetate base film by Eastman Kodak in 1948.[21] Cellulose triacetate superseded nitrate as the film industry's mainstay base very quickly. While Kodak had discontinued some nitrate film stocks earlier, they stopped producing various nitrate roll films in 1950 and ceased production of nitrate 35 mm motion picture film in 1951.[22]

The crucial advantage cellulose triacetate had over nitrate was that it was no more of a fire risk than paper (the stock is often referred to as "non-flam": this is true—but it is combustible, just not in as volatile or as dangerous a way as nitrate), while it almost matched the cost and durability of nitrate. It remained in almost exclusive use in all film gauges until the 1980s, when polyester/PET film began to supersede it for intermediate and release printing.[23]

Polyester is much more resistant to polymer degradation than either nitrate or triacetate. Although triacetate does not decompose in as dangerous a way as nitrate does, it is still subject to a process known as deacetylation, often nicknamed "vinegar syndrome" (due to the acetic acid smell of decomposing film) by archivists, which causes the film to shrink, deform, become brittle and eventually unusable. PET, like cellulose mononitrate, is less prone to stretching than other available plastics. By the late 1990s, polyester had almost entirely superseded triacetate for the production of intermediate elements and release prints.[citation needed]

Triacetate remains in use for most camera negative stocks because it can be "invisibly" spliced using solvents during negative assembly, while polyester film can only be spliced using adhesive tape patches or ultrasonically, both of which leave visible marks in the frame area. Also, polyester film is so strong, it will not break under tension and may cause serious damage to expensive camera or projector mechanisms in the event of a film jam, whereas triacetate film breaks easily, reducing the risk of damage. Many were opposed to the use of polyester for release prints for precisely this reason, and because ultrasonic splicers are very expensive items, beyond the budgets of many smaller theaters. In practice, though, this has not proved to be as much of a problem as was feared. Rather, with the increased use of automated long-play systems in cinemas, the greater strength of polyester has been a significant advantage in lessening the risk of a film performance being interrupted by a film break.[citation needed]

Despite its self-oxidizing hazards, nitrate is still regarded highly as the stock is more transparent than replacement stocks, and older films used denser silver in the emulsion. The combination results in a notably more luminous image with a high contrast ratio.[24]

Other uses

  • A nitrocellulose slide, nitrocellulose membrane, or nitrocellulose paper is a sticky membrane used for immobilizing nucleic acids in southern blots and northern blots. It is also used for immobilization of proteins in western blots and atomic force microscopy[25] for its nonspecific affinity for amino acids. Nitrocellulose is widely used as support in diagnostic tests where antigen-antibody binding occurs, e.g., pregnancy tests, U-albumin tests and CRP. Glycine and chloride ions make protein transfer more efficient.
  • In 1846, nitrated cellulose was found to be soluble in ether and alcohol. The solution was named collodion and was soon used as a dressing for wounds.[26][27] It is still in use today in topical skin applications, such as liquid skin and in the application of salicylic acid, the active ingredient in Compound W wart remover.
  • Adolph Noé developed a method of peeling coal balls using nitrocellulose.[28]
  • In 1851, Frederick Scott Archer invented the wet collodion process as a replacement for albumen in early photographic emulsions, binding light-sensitive silver halides to a glass plate.[29]
  • Magicians' flash papers are sheets of paper or cloth made from nitrocellulose, which burn almost instantly with a bright flash, leaving no ash.
  • As a medium for cryptographic one-time pads, they make the disposal of the pad complete, secure, and efficient.
  • Radon tests for alpha track etches use it.
  • For space flight, nitrocellulose was used by Copenhagen Suborbitals on several missions as a means of jettisoning components of the rocket/space capsule and deploying recovery systems. However, after several missions and flights, it proved not to have the desired explosive properties in a near vacuum environment.[30]
  • Nitrocellulose lacquer was used as a finish on guitars and saxophones for most of the 20th century and is still used on some current applications. Manufactured by (among others) DuPont, the paint was also used on automobiles sharing the same color codes as many guitars including Fender and Gibson brands,[31] although it fell out of favor for a number of reasons: pollution, and the way the lacquer yellows and cracks over time.
  • Nitrocellulose lacquer was also used as an aircraft dope, painted onto fabric-covered aircraft to tighten and provide protection to the material, but has been largely superseded by alternative cellulosics and other materials.
  • It is used to coat playing cards and to hold staples together in office staplers.
  • Nail polish is made from nitrocellulose lacquer as it is inexpensive, dries quickly, and is not damaging to skin.
  • Nitrocellulose lacquer is spin-coated onto aluminum or glass discs, then a groove is cut with a lathe, to make one-off phonograph records, used as masters for pressing or for play in dance clubs. They are referred to as acetate discs.
  • Depending on the manufacturing process, nitrocellulose is esterified to varying degrees. Table tennis balls, guitar picks, and some photographic films have fairly low esterification levels and burn comparatively slowly with some charred residue.
  • Guncotton, dissolved at about 25% in acetone, forms a lacquer used in preliminary stages of wood finishing to develop a hard finish with a deep lustre.[citation needed] It is normally the first coat applied, sanded and followed by other coatings that bond to it.

Because of its explosive nature, not all applications of nitrocellulose were successful. In 1869, with elephants having been poached to near extinction, the billiards industry offered a US$10,000 prize to whomever came up with the best replacement for ivory billiard balls. John Wesley Hyatt created the winning replacement, which he created with a new material he invented called camphored nitrocellulose—the first thermoplastic, better known as celluloid. The invention enjoyed a brief popularity, but the Hyatt balls were extremely flammable, and sometimes portions of the outer shell would explode upon impact. An owner of a billiard saloon in Colorado wrote to Hyatt about the explosive tendencies, saying that he did not mind very much personally but for the fact that every man in his saloon immediately pulled a gun at the sound.[32][33] The process used by Hyatt to manufacture the billiard balls, patented in 1881,[34] involved placing the mass of nitrocellulose in a rubber bag, which was then placed in a cylinder of liquid and heated. Pressure was applied to the liquid in the cylinder, which resulted in a uniform compression on the nitrocellulose mass, compressing it into a uniform sphere as the heat vaporized the solvents. The ball was then cooled and turned to make a uniform sphere. In light of the explosive results, this process was called the "Hyatt gun method".[35]


'United States Inter-Agency Committee for Nitrate Film Vault Tests' - film transfer from 1948 about testing storage and flame suppression methods of nitrate film stock.

Collodion, a solution of nitrocellulose in ether and ethanol, is a flammable liquid.[36]

When dry, nitrocellulose is explosive and can be ignited with heat, spark, or friction.[36] An overheated container of dry nitrocellulose is believed to be the initial cause of the 2015 Tianjin explosions.[37]

See also


  1. ^ Merck Index (11th ed.). p. 8022.
  2. ^ "Nitrocellulose". Dow Chemical.
  3. ^ Braconnot, Henri (1833). "De la transformation de plusieurs substances végétales en un principe nouveau" [On the transformation of several vegetable substances into a new substance]. Annales de Chimie et de Physique. 52: 290–294. On page 293, Braconnot names nitrocellulose xyloïdine
  4. ^ Pelouze, Théophile-Jules (1838). "Sur les produits de l'action de l'acide nitrique concentré sur l'amidon et le ligneux" [On the products of the action of concentrated nitric acid on starch and wood]. Comptes Rendus. 7: 713–715.
  5. ^ Dumas, Jean-Baptiste (1843). Traité de Chimie Appliquée aux Arts. 6. Paris: Bechet Jeune. p. 90. Il y a quelques années, M. Braconnot reconnut que l'acide nitrique concentré, convertit l'amidon, le ligneux, la cellulose, et quelques autres substances en un matière qu'il nomma xyloïdine, et que j'appellerai nitramidine. [Some years ago, Mr. Braconnot recognized that concentrated nitric acid converted starch, wood, cellulose, and some other substances into a material that he called xyloïdine, and that I will call nitramidine.]
  6. ^ Schönbein first communicated his discovery to the Naturforschende Gesellschaft of Basel, Switzerland on March 11, 1846: In a letter, he subsequently communicated his discovery to the French Academy of Sciences:
  7. ^ Itzehoer Wochenblatt, 29 October 1846, col. 1626ff.
  8. ^ Urbanski, Tadeusz (1965). Chemistry and Technology of Explosives. 1. Oxford: Pergamon Press. pp. 20–21.
  9. ^ Ponting, Clive (2011). Gunpowder: An Explosive History – from the Alchemists of China to the Battlefields of Europe. Random House. ISBN 9781448128112.
  10. ^ a b Fairfield, A. P.; CDR USN (1921). Naval Ordnance. Lord Baltimore Press. pp. 28–31.
  11. ^ a b Brown, G. I. (1998). The Big Bang: A History of Explosives. Sutton Publishing. p. 132. ISBN 978-0-7509-1878-7.
  12. ^ U.S. Patent 610,861
  13. ^ "Kodak Concern to Make Big Payment to Goodwin Company". New York Times. March 27, 1914. Retrieved 2010-09-18. A settlement has been reached between the Goodwin Film and Camera Company and the Eastman Kodak Company concerning the suit brought in the Federal District Court by the former for an accounting of the profits derived from the sale of photographic films prepared according to the patent taken out by the late Rev. Hannibal Goodwin of Newark in 1898. The details of it have not been announced, but it is understood to provide for tile payment of a large sum of money by ...
  14. ^ Clifton, Brad. "The Cleveland Clinic X-Ray Fire of 1929". Cleveland Historical. Retrieved 2015-04-01.
  15. ^ Kermode, Mark (May 1, 2012). The Good, the Bad and the Multiplex. Random House. p. 3. ISBN 9780099543497.
  16. ^ Health and Safety Executive leaflet/cellulose.pdf
  17. ^ [dead link]Interesting discussion on NC films. Archived 2014-12-17 at the Wayback Machine
  18. ^ "Nitrate Film: If It Hasn't Gone Away, It's Still Here!". Pro-Tek Vaults. 2015-06-04. Retrieved 11 March 2016.
  19. ^ "About the Dryden Theatre". George Eastman Museum. Retrieved 11 March 2016.
  20. ^ Cleveland, David (2002). "Don't Try This at Home: Some Thoughts on Nitrate Film, With Particular Reference to Home Movie Systems". In Smither, Roger; Surowiec, Catherine (eds.). This Film is Dangerous: A Celebration of Nitrate Film. Brussels: FIAF. p. 196. ISBN 978-2-9600296-0-4.
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