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Everything posted by budullewraagh
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"my dad/mom could get me the stuff for free. Is there any way i could use NaCl to generate some Cl? possible this: HCL + NaCl? xcpet i dont know wat that would yield me if it would react t all." you wouldnt get NaH+Cl2, that's for sure. last time i made a chlorine generator it worked well. i distilled the bleach and crystallized it. that works best. see below.
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makes sense, although the idea of the peroxide group being formed by substitution of O for C is a bit odd to think of. i dont think much peroxide is formed in the first place
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tincture is 5% I2 and 5% KI. if you want to make I2, this is the best way to do it. do it outdoors. you wont need much to force the oxidation of I- to I2, but you want to do it, just because you will not get iodine until you oxidize all the iodide. make sure that the tube with the Cl2 stays submerged under the solution. when you finish with the Cl2, you'll have precipitated iodine. i suggest you let it settle at the bottom, then boil off the liquid to a point, but still leave some so the iodine doesnt sublime. you want to resublime your iodine to make sure it is pure and dry. use dessicants.
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it's somewhat sensitive to light
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it's pretty easy to make. electrolytic oxidation works best for synthesis of KMnO4. ideas: MnO2+KOH+KClO3 MnO2+K2O2+KNO3 pretty much you need the K donor that also works as an oxidizing agent and another oxidizer.
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so, working on organic peroxides, are we? dont die or anything
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delayed oxidation. fun stuff. you could try oxidizing manganese dioxide but i'd suggest you just buy from unitednuclear
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while it is explosively flammable, it wont blow you up. at worst it will scorch you a little unless you actually pour it onto your skin. important point: diethyl ether is fun
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yeah, i didnt read everything. while the monohydrate is almost completely insoluble uin ethanol, the pentahydrite is soluble in methanol, glycerol and somewhat soluble in ethanol. but since it is a state exam, i understand. nonetheless, i reiterate: for all intents and purposes, the K, Na and Ca react with the CuSO4. the hydroxides are only present for a fraction of a second (unless the cupric sulfate is really dilute) before you get the MSO4 or M2SO4 and Cu(OH)2
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well the Ca, Na and K would react with the CuSO4, just indirectly. plus, who says we're doing this reaction wet or in water? we could be thermiting. we could be doing this in pyridine, etc.
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oxidizing things. mods, do i have permission to talk about the synth?
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jdurg, you're forgetting that the alkali/alkaline earth hydroxides would react with cupric sulfate, forming cupric hydroxide and the alkali/alkaline earth sulfate
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^acs grade, possibly the best price out there. there are some pyro sites as well such as skylighter.
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GeO and AlCl do not exist
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"silver nitrate soln is used to test for chlorine in water." well yes, silver nitrate precipitates halides, but it also precipitates most things, and there generally isnt much aqueous chloride in tap water...
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are you sure of that? i know pHydrion paper has that, but i thought blue litmus turned red in acids.
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nitrates, yes. sulfates, no. "What would some chemicals that I can check for things like Nitrates, Cl, Iron, Lead, or anything else that you guys can think of that could be in our fountains." your problem is that there wont be high concs in anything, so you wont really be able to precipitate any noticeable amount of anything. have you ever boiled water to the point where they water is all gone? at least around here, i can't see much of a residue... i guess you could use titration, but it would be with such incredibly dilute reagents that it would be difficult and frustrating. get a kit.
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pandora's box has been reopened
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do chemical stores stock Methylene chloride
budullewraagh replied to jutntog1's topic in Organic Chemistry
i've seen anhydrous caffeine for $35/lb, but anyway, it's pretty soluble in chloroform and hot water. freely soluble in pyrrole, THF, EtAc. save the pyrrole and THF, these are easier to make/obtain -
congrats
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i can see nucleophilic substitution... CH3CH2OH+3NaOCl-->CHCl3+NaAc+H2O
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well, same with tcap and a number of other scarier products
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organic is all about the carbon. there is an infinite number of organic molecules. there are many breakthroughs in organic involving biochem and such that can explain why organisms work the way they do. with organic, you see things in such a different light. everything is subtle. organic requires patience and is really an art. you need to be very precise and accurate in a lab situation. the way chemicals work in organic is so much more interesting than the way they interact in inorganic chem. hard to explain. there is so much more to do with organic and a million ways to do it. plus it's the most difficult science. i dunno, it's hard to explain my fascination with orgo
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take a class. get a book. it will be helpful when you go to college (unless youve already been there/you are there now). i'll be using g.m. loudon's organic chemistry book this summer, so there's a start