Rogue Chemist Posted August 19, 2006 Posted August 19, 2006 And francium would introduce several more problems. Getting it as it is radioactive with a very short halflife, and when you toss it into water you are going to get a radioactive mess everywhere in the vicinity.
Chris Posted August 20, 2006 Posted August 20, 2006 What's up guys? I've been in the army for the last 6 weeks so my visits here have been very random lately. I see the competitions are still rolling. Any idea for how long? Btw, does anyone know what phenolic resin is in more familiar terms. I did an enviromental report for my display company a few months back, and during the process I was supplied with a list of compositons being used by our chinese manufacturer. Phenolic resin is included in almost every formula, and now I'm trying to find an equivalent for my own needs. Edit: To be more specific, phenolic resin is included only in star and color compositions.
Swany Posted August 20, 2006 Posted August 20, 2006 Longest half-life for any Fr isotopes is around 28 minutes, I do belive. Have fun isolating a sizable amount when it is only produced in nuclear reactors. Also, I thought Li had the highest voltage difference of all metals, with 3.07 or something. I also thought that all of the metals that were heavier than it in the alkali series were more reactive due to less attraction between the nucleus and the outer electron due to atom size. This would explain why you can prepare Na and K with Li, or even prepare K with Na which is less reactive to water. Hell, Na and perhaps even K could be prepared with Mg... Yes or no?
DeAdFX Posted August 21, 2006 Posted August 21, 2006 Longest half-life for any Fr isotopes is around 28 minutes, I do belive. Have fun isolating a sizable amount when it is only produced in nuclear reactors. Also, I thought Li had the highest voltage difference of all metals, with 3.07 or something. I also thought that all of the metals that were heavier than it in the alkali series were more reactive due to less attraction between the nucleus and the outer electron due to atom size. This would explain why you can prepare Na and K with Li, or even prepare K with Na which is less reactive to water. Hell, Na and perhaps even K could be prepared with Mg... Yes or no? Yes it is posible to prepare K or Na metal via Magnesium. There is a thread on science madness discussing a thermite reaction of Magnesium and Sodium Hydroxide.
ltf Posted August 21, 2006 Posted August 21, 2006 Tried this thermite ?I got only Na salts.. maybe you can dissolve Ca/K/Na salts in other solvents like alcohol or aceton and then react with Mg.here is a vid of all alkali metals in water of course except Fr :google video:http://video.google.com/videoplay?docid=-2...q=alkali+metalsyoutube:
Swany Posted August 21, 2006 Posted August 21, 2006 The idea is you react it in a closed enviroment and then heat it to distill the sodium. Reacting it in air, any formed sodium would immedietly ignite and then form the peroxide. Also, alkali metals react violently with alcohols to produce X R-oxide, where X is the metal and R is the carbon chain length (meth, eth, but, etc). Sodium+Ethanol->Hydrogen+Sodium ethoxide. Of course, this is acid-base chemistry as is nearly every organic reaction, even though this one really isn't an organic reaction in the sense of two carbon-based compounds reacting. But I digress.
justanotherpyro Posted August 21, 2006 Posted August 21, 2006 I will be a sofmore Don't plan on taking AP english Just popping in.
BigBang Posted August 21, 2006 Posted August 21, 2006 Heh, it was late, it was summer, sophomore. So far school has just been boring, still doing measurements. I don't think I will take AP english, even if I could spell. It is just too much pointless (to me) work. I am a right, not a left.
DeAdFX Posted August 22, 2006 Posted August 22, 2006 I was dinking around with some Ammonium Nitrate and I believe I stumbled upon a potential waterfall compistion... 1.9grams 40%Ammonium Perchlorate/30% Ammonium Nitrate/20%Glycine/10% Hexamine.1grams Charcoal.1grams Alumium powder 10 micron atomized...No water/binder was added except for the water used to dissolve the 1.9gram stuff. I am kind of surprised that such a small aluminum content could produce so much sparks. The mix didn't self sustain but I think that was partly due to me not allowing the mix to completly dry and because Ammonium Nitrate doesn't burn to easily at one atmosphere. I think I will make some more of this stuff and hopefully I can have the pyrotechnic mix self sustain.
Pretty green flame Posted August 22, 2006 Posted August 22, 2006 Does anyone here have any phone scams, i just got some from my friend and they kick ass, if they do can they send me a couple to my mail or over MSN. Thanks
Ozzy Posted August 22, 2006 Posted August 22, 2006 http://web.archive.org/web/20050208001704/...r.com/shell.htm
Swany Posted August 22, 2006 Posted August 22, 2006 Does anyone here have any phone scams, i just got some from my friend and they kick ass, if they do can they send me a couple to my mail or over MSN. Thanks Well, a friend and me like to call people pretending we are from the American Cancer Society and would like to take a quick survey, they agree, and the first question is 'Have you ever had intercourse with any of the common larger farm animals, such as horses or cows? Usually they dissolve in to swearing at that point, but if we continue or they refuse to awnser, we repeat 'Answer the damn question, please' in the same calm voice. My friend does the voice, and is quite good at it. Think a slightly demented grandmotherish voice. Sooner or later he tells them to go to hell in a demonic voice, then clears his throat and continues in the grandma voice. I'll have to record one sometime, very amusing. We only do it to people we know, thankfully... Is that what you ment? School starts tomorrow. Sad.
_DB_ Posted August 22, 2006 Posted August 22, 2006 Me and my friends are pretty good at pranks calls. We're famous at my school for them. We have a MySpace for pranks calls but I'd rather not post the link because it gives out way too much personal information. A good one is to call people and demand that they get their dog out of your yard and just go from there. I've had one call last for ten minutes with that one during which many F-bombs were dropped by the person on the other end.
Pyrohawk Posted August 23, 2006 Posted August 23, 2006 Hhaahaha thats actually pretty good Swany! The only time I've ever prank called was when I went on a school trip for TAG and we stayed in this hotel. So we dialed hotel room numbers all night and pranked them. We just pretended to be the hotel lobby and told them that like their two large pizza's were waiting in the lobby, or the 6 Big Macs and large fries they had ordered arrived. Then demand that they come down and pay for them. Made people very mad....they finally complained enough that the hotel staff told our advisor and he got on us.
h0lx Posted August 23, 2006 Posted August 23, 2006 If any of your friends is a girls or can make a female voice, let her/him call some other friend and demand meeting somewhere. the guy will go there 90%! and then lwt him wait and wait.... We made one guy go to city central and miss the last bus:)
d4j0n Posted August 23, 2006 Posted August 23, 2006 Can someone tell me what the difference between these stars would be? Blesser | Lancaster70 | 70 potassium perchlorate10 | 9 red gum15 | 15 Strontium carbonate1 | 2 Charcoal4 | 4 dextrin I'm guessing one is brighter than the other
Mephistos Minion Posted August 23, 2006 Posted August 23, 2006 ....they finally complained enough that the hotel staff told our advisor and he got on us... I thought the position of power laws regarding sex would have made him doing that illigal...
Pyrohawk Posted August 23, 2006 Posted August 23, 2006 Minion.....I wondered if anyone would make that joke. I doubt there is any difference d4jon. Just two different peoples compositions. My guess would be that there is no substantial difference in the two of them.
d4j0n Posted August 23, 2006 Posted August 23, 2006 So I added 5% dark aluminum to my bp prime. Should I worry about spontaneous ignition? The stars themselves also have aluminum in them, they are 50/50 potassium perchlorate/aluminum (30 micron spheroidical). Also, I find that stars containing lots of 325 flake Al are nearly impossible to wet. The water/alcohol seems to be completely repelled. Is this just because my flake Al is coated?
Swany Posted August 23, 2006 Posted August 23, 2006 I wouldn't think spontaneous ignition would be a problem, but you may want a touch of boric acid to inhibit the nitrate/Al reaction. Water and alch should form a system with very little surface tension, reletive to water at least. I would suggest beating/stirring the hell out of it, perhaps using as little water as possible to force it to make a clay consistancy. Would adding a 'tiny' amount of a detergent affect the chemistry of the stars much? I find this makes short work of any surface tensions in place... To see what I mean, fill a shallow dish with a shallow layer of water, and put a drop of oil of sorts on top, dip a toothpick in some dishsoap, and touch it in the oil. Bye bye, surface tension! School started today. I have pre-AP chemistry first block for a whole semester, and only 13 people in the class and a teacher I genuinely like. Oh, joy!
justanotherpyro Posted August 24, 2006 Posted August 24, 2006 Classes start tomorow for me. I start out with my Chemistry lab of all things. Chemistry, physics, calc, and Arabic all in one fucking semester. Joy.
ActionTekJackson Posted August 24, 2006 Posted August 24, 2006 Classes start tomorow for me. I start out with my Chemistry lab of all things. Chemistry, physics, calc, and Arabic all in one fucking semester. Joy. Ass raped by the college man... Take some breaks on weekends and go do something crazy man, or you're just gonna go insane.
Mephistos Minion Posted August 24, 2006 Posted August 24, 2006 JAP, be careful when you talk about chemistry in Arabic My press is nearly done, I have been workign on it for ages, trying to find springs for the return system. I will get pics when I whore it up with some paint (it is ugly as sin at the moment). I cant wait till it is done, I have made a powder die already for it Also a teacher at my school has about 8 willow trees he said I can come down and cut up for charcoal
Rogue Chemist Posted August 24, 2006 Posted August 24, 2006 Brainiac faked the videos of cesium and rubidium blowing a bathtub.http://www.guardian.co.uk/life/badscience/...1826518,00.html
Pretty green flame Posted August 24, 2006 Posted August 24, 2006 I dug up some phone pranks and this one is pretty funny, made me laugh.http://www.ebaumsworld.com/scootersroofin.html OK another one, also very funny.http://www.ebaumsworld.com/audio/dirtyturban.html
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