1st, the potassium permanganate and the strong sulfuric acid responded produces the oxidized ability greatly strengthened brown oily liquid heptoxide two manganese.As soon as it bumps into the ethyl alcohol immediately to have the intense oxidation - electronation reaction, emits the quantity of heat enables the ethyl alcohol to achieve the kindling point burns. 2nd, when the blue vitriol powder, the magnesium powder and return to original state the powdered iron falls when the flame, because the blue vitriol cupric ion causes the flame to present the green, the magnesium powder and the powdered iron the volume is very small, is very big with the air contact face, is been easily scalding hot by the flame, therefore can with the air in oxygen chemical combination production magnesia and the loadstone. The response produces the heat causes the loadstone to blush, enables the magnesia to achieve the incandescent condition, therefore then appears the tiny thioindigo red and the dazzling white light.Because the metal powder is not the identical time falls on the flame burns, in addition when oxidation is flushed by the hot air stream, therefore the thioindigo red and the white light four shoot, as soon as dodges resembles the star light to fly
1, concentrated sulphuric acid and potassium permanganate oxidation reactions have strong brown oily liquid seven manganese oxide. It encountered an immediate strong alcohol oxidation - reaction, the heat released by the alcohol to achieve ignition and combustion point.
2, when the biliary alum powder, magnesium powder and reduction iron landed on the flame, Copperas biliary copper ions showed that the flame green, iron and magnesium powder for small size, and the access of the great air, easily flame burning Therefore, in the air and can be combined generating oxygen and magnesium Fe3O4. Heat generated by the reaction to red iron oxide, magnesium oxide to reach incandescent state, and then a small red and bright white. Metal powder is not because the same time landed on the flame burning, together with the thermal oxidation was open-air, red and white in all directions, like flash flash Stars in the flight
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1、高锰酸钾和浓硫酸反应产生氧化能力极强的棕色油状液体七氧化二锰。它一碰到酒精立即发生强烈的氧化-还原反应,放出的热量使酒精达到着火点而燃烧。
Potassium permanganate and concertrated sulphuric acid reacts together to form heptoxide manganese, which is a brown oily liquid with high oxidazing ability. It reacts immediately with ethyl alcohol - oxidation - reduction reaction, the heat released makes the alcohol to reach combustion point and to ignit.
2、 当胆矾粉末、镁粉和还原铁粉落在火焰上时,胆矾的铜离子使火焰呈现绿色,镁粉和铁粉因体积很小,与空气的接触面很大,容易被火焰灼热,所以能和空气中的氧气化合生成氧化镁和四氧化三铁。 反应所产生的热使四氧化三铁发红,使氧化镁达到白炽状态,于是便出现细小的红光和耀眼的白光。因为金属粉末不是同一时间落在火焰上燃烧的,加上在氧化时被热气流冲开,所以红光和白光四射,一闪一闪好象星光在飞
when blue vitriol powder, magnesium powder and reducted iron fall on the flame, the copper ion in blue vitriol powder make the flame appears green, whereas magnisium and iron powder have very small particle size, have big surface area, therefore they could be easily heat by the flame and react with oxygen in the air, and form magnisium oxide and FeSO4. The heat released by reaction makes FeSO4 glow and Magnisium oxide incandescent, which appears tiny red light and bright white light. Because of that the metal powder don't fall on the flame on the same time, adds on the hot air rising in oxidation, red and white light falshes in all directions, just like falshing stars in the sky.
翻好久。。都自己翻的哦~没用机器的~给分吧~