字幕列表 影片播放 列印英文字幕 Hi there, everyone. This is some extra footage from an nitrogen tri iodide video again showing as we often dough that things don't always go according to plan in the chemistry lab. Now, in the original video, you probably saw this. We have, ah, Lego professor touching some dried out nitrogen. Tri iodide. It's a contact explosive. So the result is obvious. Oh, very nice. Filmed very carefully now. Often, we decided to film these experiments a second time, mainly so I could get better footage because I don't do a very good job the first time. So here we are in the lab. We're going to do it a second time. We've got some wet nitrogen tri iodide on the hot plate, but it's getting near the end of the day. We have to go home. And when we first give it a try, as you can say, uh, no reaction. The chemicals are still too wet. They haven't dried out. Now we've got them on a hot plate to help them dry, and you can see here we're trying to increase the temperature. I think it was originally it's something like 50 degrees Celsius. We go for 100 then decide. No, that's too much. Go back down to 75 because we don't want the heat itself to cause the reaction to happen. Now, here we are, just waiting around for things to dry out. And by, I think, more luck than anything. I have got the high speed camera still running, ready to trigger on. All the lights are still on. And that's a good thing, because mid conversation suddenly we get this. Oh, that's all right. And I guess just reflexively. When the reaction went off, I did press the trigger and captured the slow motion. Here it is nothing setting it off except just the hate. But if we look at that again, here's where we see a small problem. We have some still wet nitrogen tri iodide off to the side here, being blown to the side of the fume hood. That means we have small specks of wet night. She didn't try higher, died in Neil's Fume Hood. If you've watched every two years before, you know this is not the first time we've made a mess of the fume hood. But the problem here is it's still wet, and when it draws, it's ready to go again. So Neil got his little Lego man and started setting off the bits of nitrogen trial. I died As they drive. It'll snap, crackle and pop slight rice bubbles. We also noticed a few little specks on the floor around the fume hood. They were mainly being set off by my shoes. And, of course, the equipment that's in the fume hood may have had small specks on it as well said you had to get all of that out and give it a good seeing T. You go. No. Everything goes to plan in the chemistry lab, but it's always good that you see that as well.
B1 中級 三碘化氮(額外鏡頭) - 視頻週期表。 (Nitrogen Triiodide (extra footage) - Periodic Table of Videos) 8 0 林宜悉 發佈於 2021 年 01 月 14 日 更多分享 分享 收藏 回報 影片單字