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This topic was originally posted in this forum: Explosives |
| Author | Topic: sulfuric acid |
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mosaz Frequent Poster |
I knew this is very similar to an other topic we had. It's because you all get your sulfuric acid from drain openers, but I'm not. So I looked for an synthesis. I will try to explain it to you and you'll say me if it's wrong or not. 1. I take some sulphur and burn it. 2. now I lead the gas through an catalyst . which is here glowing copper wire( I really don't know how to do this!! but I will so) the gas must be cooled now and it must be introduced in water. Now you got con. sulfuric acid. I hope please any comments: is it right or not or whatever!!!!! |
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Washuu X A New Voice |
I don't know if it'll work with copper wire but I've seen this process with iron oxide as catalyst. It's pretty simple, you burn the sulfur (I suppose you can just put the sulfur in a tin and put a blowtorch or something below, but don't quote me on that) to get SO2, sulfur dioxide and lead it over the heated catalyst (a stuffed glas tube heated with a bunsen burner or something from below) where it's oxidised with oxygen from the air to become SO3, sulfur trioxide. And if you introduce this into water, you'll get H2SO4. SO3 is better soluable in acids than in water, so once you got some acid, you might use this in further runs. A crappy ASCII drawing follows. ________________ / __catalyst___ \ | | /\ | | / \ | | | | / \ \/ |__| |__| ^ | | | | |sulf| flame |water | |_ur_| |_______| /\ \/ another flame WARNING! This will definitly stink your house up, SO2 and SO3 are nasty stuff. Only do this outside. |
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Washuu X A New Voice |
F**K, it's messed up. Well, try to figur it out. |
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mosaz Frequent Poster |
hmm which concentration would the sulfuric acid have ?????? Can every acid be used for the synthesis?? would the acid turn then to H2SO4 after the SO3 is introduced into it? It would be nice if you could mail me a just a little drawing to Torph2@gmx.net just a little, hm??! ![]() ------------>sorry for all the questions, but it's because until yet i can't get my hands on H2SO4 |
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megalomania Administrator |
This is basically a recreation of the contact process and one I had better get working on soon (I just found a source of sulfur, lets hope its a good one). In the beginning there ws a pan of sulfur being burned by a torch, it keeps on burning and may need scorched every now and again. The fumes travel up, up, up, and away into a metal funnel just above the burning sulfur. This in turn leads into a jar of calcium chloride (dry rite from hardware store) which removes nasty water that will affect later reactions. Now our dry sulfur dioxide travels through the tunnel o'catalyist. This is a metal pipe stuffed with rusty steel wool (near as I can figure just keep it in a hot damp place for awhile and burn some more to make yet more rust) which is very gently heated by flame, not too hot, not too cold, but just right... Now the nasty sulfur trioxide gas travels into some water where it... does nothing. In reality the SO3 reacts with sulfuric acid (that you have to add yourself) and forms super sulfuric as I call it, H2S2O7, which reacts readily with water to form 2 parts of sulfuric acid. Eventually you will end up with super fuming 120% sulfuric acid that you can add to water and make whatever concentration you want. I do hate those synths that need what you are making to make what you need. The sulfur trioxide does eventually react with water to make a little acid, then with that acid to make more acid, but it will waste a bunch. The only thing I have yet to puzzle out is how to create a net vacuum to suck up the gas from burning sulfur (it won't just waft into the funnel). ------------------ |
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nbk2000 Moderator |
To suck the SO3 into your acid use a water aspirator bottle. That's a large (several gallons at least) bottle with a 2 hole stopper in it with 1 hole connected to the 2 hole stopper in your acid collection flask and the other hole connected to a tube that goes from the bottom of the aspirator bottle, out through the stopper, and into a sink below the level of the bottle. |
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ezekiel Frequent Poster |
couldn't you use H2SO4 to dry the SO3? ------------------ |
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*Igenx* Frequent Poster |
Doesn't the burning of black powder make SO2? Couldn't this be useed for this? |
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dlwdaw Frequent Poster |
I know where to get sulfur. it is sold at hardware stores as a defungicide. this isnt some outdated advice from a cookbook. i saw this when I got my sodium nitrate(nitrate of soda). I get mine at Rx pharmacy the medicinne shoppe, this is sulfur sublimed ------------------ |
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mosaz Frequent Poster |
do you mean sulfur or sulfuric acid because in my opinion it isn't difficult to get sulfur. just buy some fertilizer for example. |
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dlwdaw Frequent Poster |
sulfur, it is a defungicide for plants, not a fertiliser ------------------ |
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megalomania Administrator |
Sulfur is both a fungicide and a fertilizer, its use as a fertilizer is limited to a few kinds of crops in certain areas. You would be suprised at how hard it is to find bulk sulfur. I went on a mission to all the ag stores in the area, plus some gardin shops and no dice. I have bought some at the drug store, but the price for vast quantities is not good. I know cheap bulk sulfur is out there, I worked at a place that bought a pallet of 50 lb sacks. Burning gunpowder to get sulfur dioxide would be quite wasteful as well as possibly adding certain contaminents in the finished product. ------------------ |
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Feticidal Fantasy Frequent Poster |
I found a cheap source of bulk sulfer. At my local gardeing/nursery store I bought a 5 pound bag of 93% sulfer for $2.99. It may be rare, since that is the only store I have ever seen that sold it. Should I check the brand name and report it back when i get home? ------------------ |
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