It's also useless in any practical sense. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Wikipedia. High-speed footage of nitrogen triiodide detonating at the touch of a feather. EDIT: I found out I can make it with KI and Iodine crystals. The decomposition of NI3 proceeds as follows to give nitrogen gas and iodine: However, the dry material is a contact explosive, decomposing approximately as follows:[4], Consistent with this equation, these explosions leave orange-to-purple stains of iodine, which can be removed with sodium thiosulfate solution. Chemicals containing both oxidizing and reducing Dry picric acid, which is more powerful than TNT, was used in blasting charges and artillery shells. Web. just before a drug raid. what chemicals might be used in making explosives? The reaction of white phosphorus and liquid chlorine is . How does the process of nucleation work for boiling liquids? triiodide species in the 1:2 reaction below: I 3-+ 2S 2 O 3 2- 3I-+ S 4 O 6 2-The indicator used is a starch solution. Shock Sensitive Chemicals. -Seriously That said. the manufacture of these explosives. Then we would fill the capsule the rest of the way with cotton. potassium chlorate) The Video Loading TheRoyalInstitution. This The instability comesfrom the crowding of 3 iodine molecules on the nitrogen atom, the explosive reaction is 2NI3(s)N2(g) +3I2(g).. If the reaction is above 10oC, the unstable dicycloacetone peroxide will be formed (which can spontaneously explode). Then comes the fun part. pool granular tablets (the oxidizer). Can be mixed with most high explosives. nitric acid; conc. Nitrogen Triiodide is a very powerful contact explosive, but like most fun chemicals is not readily available to the general public cheaply. No labs. Acetone Contact; CSR; About Us. To learn more, see our tips on writing great answers. In 2nd beaker dissolve 5.4 grams of potassium or sodium nitrite in 240 ml of water. Examples include sodium triiodide, thallium triiodide, and ammonium triiodide (NH 4 I 3 ). The explosion goes off at, literally, the tap of a feather. The metal is not an oxidizer but it will react violently with water including the moisture Potassium in contact with the following oxides causes an explosive reaction: potassium ozonide, potassium peroxide, or potassium superoxide [Mellor 2, Supp. Ammonium chloride or ammonia and hydrogen chloride SAFETY DATA SHEET Creation Date 14-Sep-2009 Revision Date 24-Dec-2021 Revision Number 7 1. In The triiodide ions are reduced back to iodide by thiosulfate at a much faster rate, until the thiosulfate is consumed. production of explosives or fires because of improper use of chemicals. Web. 1. 23 Oct. 2016. anhydrous ammonia. KI does not protect other parts of the body. Seek medical attention if irritation persists or if concerned. Description SDS Pricing; 483338: 99.9%: Expand. N.p., n.d. recipe described above (use concentrated chemicals, 5oC) favors the trimer sulfuric acid; 01 Nov. 2016. The tip-off is also What is the pictured tool and what is its use? -Wonderful The change from two moles of ordered, solid crystals into four moles of gas is consistent with the largeSsystem, and this can be easily visualised during the reaction, as can the exothermic nature of the reaction and thus the positive entropy change of the surroundings (Ssurroundings= -H/T). Further, 2 moles of product are formed per mole reactant, so the reaction is also entropically driven. Cops, By. Leave to dry in the fume cupboard while taking adequate precautions to prevent students or other staff getting near the experiment - place stools or similar in front of the cupboard. The explosion releases a purple cloud of iodine vapour, which is an irritant and on . a mysterious container. sulfur; any chemical containing chlorates such as potassium chlorate; suspicious powders The National Fire Protection Association (NFPA) HAZMAT However, after all the thiosulfate ions have been consumed by the reaction of equation 2, triiodide ions react with starch to form the blue starch-pentaiodide complex ." The "A" beakers contain sodium thiosulfate, potassium iodide, and a little bit of starch. Remove the wet filter paper containing the NI3(s), open up and place on a heat-proof mat so that it lies flat. Detailed recipes for making these explosives may Picric acid specifically has been used for burn treatment and as an Antiseptic.[8]. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. the yellow diamond is also an indicator that the chemical is reactive and could result Reserved. Iodate (IO3 baking soda, Mannose; conc. Drug raid tip-off: army Except where otherwise noted, data are given for materials in their, Nitrogen Tri-Iodide explains why the compound is explosive, Nitrogen Tri-Iodide Detonation on Youtube,, Articles with unsourced statements from September 2020, Articles with unsourced statements from June 2018, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles with unsourced statements from October 2022, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 17 March 2023, at 22:35. A list of homemade explosives and the chemicals used Substance which explodes when exposed to small amounts of energy, Frierson, W. Joe, J. Kronrad, and A. W. Browne. Researchers in Europe now show that the long-accepted explanation . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. parts in the same molecule (i.e., the same chemical) are called explosives. Teenagers Your email address will not be published. Molecular Weight: 419.81 Molecular Formula: I3K Additional Metadata. Your email address will not be published. Pb (NO 3) 2 (aq) + 2KI (aq) PbI 2 (s) + 2KNO 3 (aq) Obviously, a chemical reaction has occurred, but the colour change is all down to physics. Sulfur; chlorine (generated from bleach or swimming Contact suppliers of Potassium triiodide quickly, without cost or commitment. Linear Formula: CsI 3. All The three huge iodine atoms try to attach themselves to one small nitrogen ion, which means that the atoms are holding on to each other through a very weak bond. YouTube. Wikimedia Foundation, n.d. I made a sizable batch of this a couple years ago, about a tablespoons worth, and I was sure it was still wet enough to work with wrong! 70% nitric acid; alcohol, Copper sulfate; sodium hydroxide; acetylene or calcium or crystals scattered about the floor or at various locations. or bleach (the oxidizer) with flammables such as waste solvents or motor oil ( 803-813. Business Insider, Inc, 16 Nov. 2015. Required fields are marked *. I'll also include the reaction. Also practice of placing waste chemicals in look-alike black buckets prior to mixing in Expensive and hard-to-get iodide crystals are necessary instead; they're highly concentrated with a lot of iodine atoms. If any oxidizers are seen during a meth lab raid, Slow Motion Contact Explosive - Nitrogen Triiodide The Royal Institution 1.34M subscribers 1.1M views 7 years ago Nitrogen triiodide is a highly unstable substance that detonates when. A contact explosive is a chemical substance that explodes violently when it is exposed to a relatively small amount of energy (e.g. Potassium iodide is effective in providing protection for one specific type of radioactive material that is swallowed or inhaled. acid; potassium chlorate; ethanol. ; Brodie, B.B. Rinse/flush exposed eye(s) gently using water for 15-20 . Thermal decomposition of mercury thiocyanate, Counterintuitive Reaction of Aluminium On Steel Balls. Found some at wal-mart but they can be found in most stores that have cleaning supplies and other related things. materials by adding another ingredient. TCAP will List Cats just love it. motor oil spilled and mixed with swimming pool chemicals which resulted in a fire. Being crowded around one end causes something called bond strain as the atoms repel each other in a small space. "Nitroglycerin Sublingual: MedlinePlus Drug Information." The best answers are voted up and rise to the top, Not the answer you're looking for? An alternate method of stain removal is to simply allow the iodine time to sublime. example, [source: The Atlantic Journal-Constitution, November with sulfur and then add red phosphorous while very wet; mixture when dry explodes Therefore, little energy is required to overcome these weak bonds, but a great deal of energy is released in the exothermic process in which the strong triple bonds in N2 are formed. To the iodine powder add approximately 4 ml of concentrated ammonia solution and stir briefly using a glass rod. triiodide crystals will settle in mixture. Once the filter paper is dry it is possible to detonate the crystals by tickling with a feather attached to a metre rule. Vapor cloud explosions occur when a flammable liquid In the cases where iodine is used it is in the form of extemporaneous prepared iodine potassium iodide solution (Lugol 5%). there is enough oxidant present, oxygen in the air is not necessary for the explosion Triiodide primarily refers to the triiodide ion, I 3, a polyatomic anion composed of three iodine atoms. (adsbygoogle = window.adsbygoogle || []).push({}); Nitrogen Tri-Iodide: Schoolboy Explosive? bicarbonate solution. There are several other home made explosives that Other than that, its volatility makes it useful only for entertainment explosions. You might want to add the equation for decomposition. The The Bracken Ferns: How Toxic to Grazing Farm Animals? Ultraviolet absorption spectra of iodine I2, iodide ion I (-) and triiodide ion I3 (-) were studied, and molar absorptivities of these species were determined. AristaTek has received requests from law enforcement N.p., n.d. That sort of information is scarce in modern children's books. U.S. A fluorescent sensing platform using KI 3-quenched bovine serum albumin stabilized gold nanoclusters has been designed and used as a fluorescent probe for the turn-on detection of homocysteine/cysteine (Cys/Hcy).The fluorescence of gold nanoclusters was quenched by iodine. The drum was supposed to carbide + water, hydrogen peroxide; hexamine; citric acid. Web. We may earn a commission from links on this page. [4] Chemicals like gasoline, a fuel, burn instead of explode because they must come into contact with oxygen in the combustion reaction. The reaction between I2 and I- is an equilibrium. : 12297-72-2. Although the formula of nitrogen triiodide is usually written as $\ce{NI3}$, it would be more accurate to write $\ce{I3N}$, as the compound is thought to consist of $\ce{I+}$ and $\ce{N^3-}$ ions and its sensitivity to shock is due to redox instability of these ions. Place the filter paper remains into the 5 M NaOH solution, rinse until colourless and put in the refuse. Easily detonated, nitrogen sulfide may be mixed with dry potassium Web. are not. Hearing protection should be worn before there is a risk of explosion by both the demonstratorand the students. There is no single drug that will protect a person from radiation exposure. Mechanism of initiation in contact explosives? peroxide (left) is a white, crystalline powder with a distinctive acrid odor. It is an extremely sensitive contact explosive: small quantities explode with a gunpowder-like snap when touched even lightly, releasing a purple cloud of iodine vapor. N.p., n.d. Nitrogen triiodide (NI3) is an extremely sensitive contact explosive. In the absence of triiodide, the starch indicator is a milky-white. ; Levy, B.; Steele, J.M. Subscribe for regular science videos: you help us translate this video? oxidizer. Quantities of iodine greater than 0.48 g require a police certificate. Visit ChemicalBook To find more Potassium iodide(7681-11-0) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. nitric and sulfuric acid under controlled temperature conditions; wash with sodium amount of water. hydroxide; lead nitrate, 85% hydrazine hydrate; butyl nitrite or isopropyl For some chemical compounds, triiodide indicates a salt of the named cation with the triiodide anion. officers and first responders for information on how to recognize potentially dangerous Belongs to the Following Reactive Group (s) Metals, Alkali, Very Active Potentially Incompatible Absorbents No information available. - Chemistry, Structures & 3D Molecules a visual and interactive website showcasing the beautiful world of chemistry Ear defenders are required for the demonstrator, and students must cover their ears and wear safety goggles. Substance Details Internal Tracking Number: 181750 Substance Type: Chemical Substance Systematic Name: Potassium iodide (K (I3)) IUPAC Name: Iodidopotassium--iodine (1/1) CAS Number: 12298-68-9 EPA Registry Name: Potassium triiodide Molecular Weight: 419.81 Molecular Formula: I3K Additional Metadata Details of the supplier of the safety data sheet Although the formula of nitrogen triiodide is usually written as $\ce {NI3}$, it would be more accurate to write $\ce {I3N}$, as the compound is thought to consist of $\ce {I+}$ and $\ce {N^3-}$ ions and its sensitivity to shock is due to redox instability of these ions. Now I know.. A contact explosiveis a chemical substancethat explodesviolently when it is exposed to a relatively small amount of energy(e.g. Is it okay to use Lugol Solution (I2/KI) for this type of experiment? diamond (NFPA 704 Hazard Classification System) provides information on flammability and other chemical fumes tend to become paranoid because of changes in their brain Left: dry NI3 crystals; right: on contact with a feather. in 5% gum arabic solution; some preparations add sulfur and ground glass, sometimes Therefore the total entropy change (Stotal=Ssystem+Ssurroundings) will be expected to be large and positive, indicating a spontaneous change which will go to completion. This problem has been solved! Since only elements are formed upon decomposition - and they have a heat of formation of zero - the full 154 kJ/mol is released upon decomposition. If you have time, you can go with synthesis of barium styphnate (lead is much more toxic, and explosion products will contain lead oxide smoke. [9] They are used to produce loud, bright flashes of light for effect. It is huge in the sense that, as you say, kids wouldnt use as much as is shown being used in the video. The National Fire Protection Association (NFPA) HAZMAT Once dissolved, the student measures the electrical conductivity of the solution. The The Stack Exchange reputation system: What's working? Drug raid tip-off: Acetone, and whether the chemical is an oxidizer. ADDITIONAL INFORMATION: Create a beautiful cloud of vapour mixed and gas with this safe contact explosive demonstration. A few of the materials listed are not, of themselves, explosive, but mixtures of them with combustible material such as organic . The explosive 1963]. Unmatched records missing from spatial left join. produces shock-sensitive dark crystals, Mix potassium chlorate with antimony sulfate, wet, There are currently no industrial uses for nitrogen triiodide, but the substance is often used as an example ofa contact explosive. Nitro compounds are explosive because although the diatomic form of nitrogen is very stable - that is, the triple bond that holds N2 together is very strong, and therefore has a great deal of bond energy - the nitro compounds themselves are unstable, as the bonds between nitrogen atoms and other atoms in nitro compounds are weak by comparison. Information about your use of this website will be shared with Google and other third parties. flammable). It Nitrogen Triiodide is extremely sensitive to touch, shock, and even ultraviolet light, and generates large amounts of nitrogen gas (and solid iodine) upon explosion. HDE 226868's answer covers pretty much about the thermodynamic property of nitogen triiodide, my answer just points out another point, its composition. In particular, The backyard nitrate-fuel oil (ANFO) mixtures are a favorite of car and truck bombers. [/quote'] I'm all up for mild explosives but what you and YT2095 said (And YT2095's reaction too) I'll leave it well alone Cheers and thanks for the informaiton all the same, Ryan Jones. All of these recipes have varying degrees of risk during Quoting from Weller, M.; Overton, T.; Rourke, J.; Armstrong, F. Inorganic Chemistry, 6th ed:-. I'm currently trying to acquire potassium triiodide to precipitate out choline as choline periodide for colorimentric analysis; the same way some reasearchers did inAppleton, H.D.
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