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Copper flame color - Copper I chloride in Methanol Posted by: evansp12
Video duration: 60 seconds A flame color of copper I (cuprous) chloride in burning methanol. Includes 4 picture clips, the last one is its emission spectrum. Note: the orange line is due to traces of sodium ions as an impurity. Related: chemical, chemistry, chloride, color, copper, cuprous, emission, flame, green, metal, methanol, reaction, spectrum, test, transition |
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Mercury metal Posted by: evansp12
Video duration: 109 seconds Just 2 short movies of mercury metal being swished about in an ampule. Related: ampoule, mercury, metal, quicksilver |
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Lithium and Water Posted by: evansp12
Video duration: 11 seconds Another reaction of lithium metal dust (aggregated) with water. Compact lithium does not give a reaction where hydrogen self-ignites. Related: lithium |
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Cesium and water Posted by: evansp12
Video duration: 15 seconds A reaction of a small piece of cesium with water. Hydrogen is produced which burns, and very strongly alkaline cesium hydroxide is formed in solution. Related: alkali, and, caesium, cesium, chemical, in, metals, reaction, water |
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Potassium burning Posted by: evansp12
Video duration: 25 seconds Potassium metal burning in air on steel spatula, forming chiefly potassium hyperoxide, some of it combining with the steel to form potassium ferrate. Sorry for the dark picture quality. Related: alkali, chemistry, fire, metal, potassium |
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Magnesium on snow Posted by: evansp12
Video duration: 37 seconds Burning magnesium on snow. Hydrogen is liberated which too burns. Related: alkaline, combustion, earth, incendiary, magnesium, metal, snow |
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Radium watch hands Posted by: evansp12
Video duration: 34 seconds The old luminous watch hands in a bag, contains copper doped zinc sulfide paint with very small quantities of a radium salt, which is radioactive giving a marked response with a Russian made DRGB-90 Geiger counter, exceeding 3 microsieverts per hour (300 microroentgens per hour). Sorry for the image quality. Related: alkaline, alpha, atomic, counter, dark, earth, gamma, geiger, glow, hands, in, luminous, metal, nuclear, radiation, radioactive, radioactivity, radium, watch |
![Reduction of Fehling\](http://img.youtube.com/vi/kbYCmmI3Wug/2.jpg "Reduction of Fehling\") |
Reduction of Fehling's solution Posted by: evansp12
Video duration: 39 seconds A movie depicting a reduction of Fehling's solution (a complex of copper II sulfate in alkaline sodium potassium tartrate solution) by glucose to form a precipitate of copper I oxide. Glucose is oxidized to gluconic acid. This reaction is used as a test for aliphatic aldehydes (e.g., formaldehyde, acetaldehde) and monosaccharides, e.g., glucose (which also contains aldehyde groups). Related: aldehyde, copper, fehlings, glucose, oxide, solution |
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Nitrogen Plasma (with still image & spectrum) Posted by: evansp12
Video duration: 52 seconds This is a nitrogen spectrum tube, powered by 2700V induction coil device, producing a plasma. Also includes a still image and an emission spectrum. Related: current, discharge, electric, electricity, emission, nitrogen, plasma, spectra, spectrum, tube |
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Nitrogen Tri-iodide Posted by: evansp12
Video duration: 31 seconds 2 short movies (plus slow motion versions) of small amounts of nitrogen tri-iodide (actually, a double compound NH3.NI3) exploding when touched with a strip of paper. The crack was louder than it was on camera. Related: nitrogen, tri-iodide |
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Thorianite Posted by: evansp12
Video duration: 22 seconds A small piece of thorianite (in a plastic container) is radioactive emitting alpha, beta and gamma rays. It gave a marked response with a DSRB-88B dosimeter (Geiger counter). Related: counter, geiger, radiation, radioactive, radioactivity, thorianite, thorium |
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Lithium and Water Posted by: evansp12
Video duration: 7 seconds A small clump of lithium metal powder reacting with water with hydrogen formed burning, together with the metal. Related: alkali, and, chemistry, fire, lithium, metal, water |
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Volcano experiment - decomposition of ammonium dichromate Posted by: evansp12
Video duration: 54 seconds Ammonium dichromate decomposes readily when heated in a self-sustaining reaction giving a volcano-like effect. Chromic (chromium III) oxide is formed, together with nitrogen and steam. Related: ammonium, dichromate, experiment, volcano |
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Strontium 90 Posted by: evansp12
Video duration: 100 seconds Radioactivity of strontium 90 isotope in sealed source tested with Russian made Kvarts DRGB-90 Geiger counter. Aluminium foil, glass pane and 2 layered thin lead sheet tested for shielding effects. Radiation measurement in x10 setting were up to 20 úSv per hour. Although indicated as beta radiation, it should read as beta minus radiation (as opposed to beta positive). Related: 90, strontium |
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Cobalt 60 Posted by: evansp12
Video duration: 105 seconds Radioactivity of cobalt 60 isotope in sealed source tested with Russian made Kvarts DRGB-90 Geiger counter. Aluminium foil, glass pane and 2 layered thin lead sheet tested for shielding effects. Radiation measurement in x10 setting were up to 20 úSv per hour. Related: 60, cobalt |
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Electric spark Posted by: evansp12
Video duration: 27 seconds Electric sparks from a small high voltage device, formally used in disposible camera flash. Related: electric, sparks |
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Potassium and Water Posted by: evansp12
Video duration: 5 seconds A reaction of small piece of potassium metal with water. The flame you see is actually burning hydrogen given off but is colored pink due to potassium vapor. Related: alkali, and, chemistry, fire, metal, potassium, water |
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Aluminium and chlorine Posted by: evansp12
Video duration: 13 seconds Strongly heated aluminium foil burns in chlorine to form aluminium chloride. Related: aluminium, aluminum, chlorine |
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Potassium chlorate, sulfur & cuprous chloride Posted by: evansp12
Video duration: 15 seconds A reaction of potassium chlorate, sulfur and cuprous (copper I) chloride, ignited with a match. Cuprous (copper I) chloride is responsible for the blue flame color and appears to catalyze the reaction. Related: and, blue, chemistry, chlorate, fire, flash, potassium, powder, sulfur |
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Calcium and air Posted by: evansp12
Video duration: 12 seconds Calcium metal burns in air, forming a mixture of calcium oxide and nitride. Related: alkaline-earth, burning, calcium, combustion, metal |
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Lithium and water Posted by: evansp12
Video duration: 37 seconds 2 videos of a reaction of lithium metal dust with water. Includes 2 slow motion clips. Related: alkali, and, chemistry, fire, lithium, metal, water |
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Silver oxide and hydrogen peroxide Posted by: evansp12
Video duration: 19 seconds Silver oxide is a strong oxidizing agent, and oxidizes hydrogen peroxide to oxygen, which rekindles a glowing taper. Silver oxide is reduced to silver metal as black powder, which will catalytically decompose any remaining hydrogen peroxide Related: glowing, hydrogen, oxide, oxygen, peroxide, silver, taper |
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Sodium Posted by: evansp12
Video duration: 23 seconds Sodium burning in air on steel spatula forming a mixture of sodium monoxide and peroxide, some of the latter combining with the steel to form sodium ferrate. Related: sodium |
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Potassium chlorate and Starch Posted by: evansp12
Video duration: 10 seconds A reaction of potassium chlorate with starch. It was initiated by a drop of concentrated sulfuric acid onto the mixture. Chlorine dioxide, first formed from the acid and the chlorate, caused the ignition of starch at the point it was added, which then ignited the rest of the mixture. Related: and, chemical, chemistry, chlorate, chlorine, dioxide, fire, fireworks, instant, potassium, reaction, starch |
