Applied Chemistry

hey i was wondering if you can create KNO3 with KCl and NaNO3. I was told you can. If so whats the technique? Thankyou Icey

How can I Dilute HCL from any concentrate HCL to any diluted HCL. e.g 38% HCL to 10% HCL. Is there any formula for HCL Dilution...?

I understand that, from a scientific perspective, there is more than one kind of salt. The salt that we typically use as a seasoning on our food is called sodium chloride, aka table salt. My car is currently stuck in ice in a restaurant parking lot. I live within walking distance of this restaurant (and, as a direct result, I'm a regular customer there), but the walk (as opposed to the drive) is still F'ing brutal! I can't go forward, because that giant stone slab is in the way, and I can't back up because there's too much ice. I don't wanna pay out the ass for a towing service. My neighbor just told me that, in the morning, I can just sprinkle some salt on…

I need ferric nitrate in order to etch silver, I was told that I could make it by combining nitric acid and iron filings. Now from what I've read, this appears to be true, but what I don't know, is what proportions and conditions I need to create ferric nitrate.Does anybody know what those are?

Are there any non toxic coloured gases at all? I've been searcing the internet to find one but haven't come across any yet. I've been putting together a short play where one of the actors has to breathe in a small amount of "poison" gas and i was hoping I could have the gas that they breathe in be green but any colour would do really. Any suggestions?

Hi. A silverware cleaning method calls for a hot solution of sodium carbonate plus a 'pinch' of common table salt; or sodium bicarbonate, or sodium hexametaphosphate, and even plain table salt alone, all in an aluminium vessel. The reaction is supposed to be " 2Al(s) + 3Ag2S(s) + 6H2O -> 6Ag(s) + 2Al2(OH)3(s) + 3H2S(aq) " But with so many choices as above, I have to think it is more a product of guessy empirism than a fine tuned fact. Any solid suggestions and optimization please ?

I don't know if this was on a previous post, but I tried to make chlorine by electrolyzing saturated salt solution. I used an inverted test tube full of water over where chlorine is produced and it naturally displaced the water. The air in the test tube wasn't greenish, but I knew it had to do with chlorine because it had a chlorine smell when I pulled the test tube out of the solution. Was I making chlorine or an oxygen/ hydrogen compund with chlorine? If it wasn't pure chlorine, how can I change my setup to make pure chlorine? Thanks

I have read a post somewhere that said that iodine can be extracted from seaweed. How much iodine is present in seaweed and what kinds of seaweed has the highest yield? Living in southern california there is plenty of Kelp and sea grass off the coast and i am very interested in the potential for iodine extraction from these plants. If anybody has any info and even a procedure for the extraction i would greatly appreciate it. ps. if there is another source of cheap iodine that anyone knows of please share. thanks.

I'm hoping this does not come across as woo-woo. I'm well aware of the dangers of spon. com. in coal and some other materials having worked in the coal industry. Couple of years ago I glanced out the window to see a neighbour's "pencil pine" or "Roman pine" tree on fire on one side, the side away from the street as it happened. The flames had only just broken out and there was nobody about. By the time I got out of the front door the neighbour was dragging a garden hose toward the tree. As I recall the weather was cool rather than hot. While mulch can show spon. com, there was no mulch about the area, the tree grew straight out of a well trimmed lawn. I decided…

The chemistry of pyrotechnics? I've always been interested in fire and fireworks as I know a lot of other people are, I think this is what actually sparked (HaHaHa, spark ignites explosives...) my interest in chemistry. I would also like to show through this thread that people are sensible with their knowledge and chemists is a bomb-crazed maniacs! So I was thinking about a thread related to pyrochemistry and let me state before we start this is not a thread related to the making of any explosive / pyrotechnic devices just a discussion on how they came to the recipes (Not actually positing them) and related subjects. I was thinking we could talk about: Wh…

Recently I've been trying out some electrolysis, just to observe the results (and catch the occasional bit of hydrogen ), and I'm hoping to start learning much more about chemistry in general, as at the moment I don't really know much about this. When I decided to first do the experiment, the only power source I had access to (that didn't provide a deadly current, that is) was an old 30v 333mA charger, on which I did some chopping and extracted the two terminals. I've been using this for the past couple of days to try different things, and I've read a couple of threads on here and I noticed mention that 12v is too high to get good results on some processes... Well I g…

I know my wee wee contains ammonia and i'm sure this is a volatile substance when mixed with nitrogen. Would it be possible to boil down to collect the raw material? How plausable is it to make a small incendiary device/firecracker utilising "organic" methods?

This is just a hypothetical question, I am not planning on actually smelting any metal, at least not at the moment. I have a collection of aluminum cans that I amassed over a period of 6 months on my long walks along the forest preserve trail (along a river) and the surrounding area/neighborhood. A lot of my cans were at some point in the river and have accumulated some river sediment on the inside. Some of them were found by the side of the road and have sand and even small pebbles embedded in them. Other cans contain cigarette butts, gooey substances that resemble thick saliva, ants and other dead bugs and insects, small and assorted pieces of plastic, etc. I have …

I know you can buy it as fertiizer, but i looked and coulnd find any fertilizer with KNO3 in it. Im prolly not looking for the right kind of fertilizer. Can you show me a site where they have fertilizer with a considerable amountof KNO3 in it please? I just want to be able to go to the garden store or hardware store and buy it so coulde you tell me the best way to get it without ordering offline.

Calculate the pH of 0.100 M sodium propanoate (NaC3H5O2)???

I herd about a company that recycles old electronics. First they desolder any valuable components, then they strip the wires to recycle the copper. But where my question comes in. They chop off the tabs( http://cgi.ebay.com/3-pounds-of-gold-computer-connections_W0QQitemZ330078091564QQihZ014QQcategoryZ164QQrdZ1QQcmdZViewItem) and grind less valuable ic’s to extract GOLD. So here’s the question how do you think they separate the gold from the silicone/plastic. Perhaps with the connectors the dissolve the plastic in acetone leaving behind the gold leaf? Maybe the use the hno3/hcl mix stuff? Does anyone know?

I'm a science teacher buying supplies for this year and was wondering how much of a difference 95% ethanol would be from pure. I am planning on primarily using it for flame tests. I am also going to use it as a substitute for liquid nitrogen by putting it in a beaker with dry ice. I suppose it might not be quite as cold as pure ethanol, but that's the only drawback I can think of. I almost feel silly posting a question like this, but I thought it wouldn't hurt to ask- maybe I'd get some insight. If any of you have any suggestions on where to buy ethanol, that would be great too. The best price I've found so far is at carolina.com. Thanks.

So I know that if you provide an oxygen source fire can burn underwater, either by providing enough heat tthat the water breaks down and provides the oxygen or via some other chemical or mechanical means. However my question is more specifically, could one saturate water with enough oxygen that more traditional methods of starting a fire work, such as matches, burning paper or something along those lines? It seems like this would be possible, however the saturation may not be high enough to allow this sort of reaction.

is it possible, in any way, to destroy a diamond.... i know they are the hardest substance on earth, but is it possible.... e.g. put them next to a nuke! or in a black hole ps. dont use another diamond!

anybody knows the chemical equation for this? I know bleach is NaClO and vinegar is CH3COOH. But I have no idea how to write a balanced equation for the two reacting with steel wool. Can anyone help me? Thanks

In rummaging through my shelves, I came across a bottle of pharmaceutical-grade sulphur, the label of which remarks that it was sublimated. That ticked my curiousity, so I went looking to see how you'd sublimate sulphur in commercial quantities. I came up empty on that, although I did learn that the sublimation process in question is from gaseous to solid phase. (I guess I subconsciously associated 'sublimation' with a solid->gaseous transition from the rather more common dry ice.) So.. Just how do they sublimate sulphur in large quantities? I presume its purity would be affected by contaminants on the condensing surface, and any in the sample that had phase…

Could you kindly help me with this paragraph ? it reads: Not all lakes are equally affected by acid rain; the damage depends on the kind of bedrock present. Limestone neutralizes acids and has a buffering effect, but granite, composed of silicates, does not undergo any acid-base reaction. So a lake surrounded by granite rock is likely to suffer more damage from acid rain. But granite's lack of reaction with acid also means that gravestone made of granite are going to last longer than those made of limestone. i don't understand why it says 'but granite, composed of silicates, does not undergo any acid-base reaction, So a lake surrounded by granite rock is lik…

Hi there, I couldn't find anything about ammonium nitrate in the pyrotechnic thread, so decided to make a new thread. I'm trying to make a small rocket engine using ammonium nitrate as fuel (easy to use, stable but powerful), but the problem is that I can only find desensitized ammonium nitrate.. Does somebody know how I could resensitize it? Thanx

Hello. Can we make a list of typical household and over-the-counter chemicals that are obtainable without "prescription' in supermarkets, hardware stores, but not from chemical specialty suppliers ? Like: Sodium bicarbonate Rubbing alcohol Acetic acid (vinegar) Turpentine Acetone Gasoline Kerosene Diesel Naphta Butane Sodium chloride (salt) Paint thinner (whatever it is) Sodium hipochlorite? (the water softener stuff) Epsom salt Borax Graphite (pencil leads) Oils Methylethilketone Cyanoacrylate Please add, rename properly and do corrections... Miguel

Hello all Probably the wrong type of thread, sorry did not know where to put it. I wanted to know if I could clean my remotes safely with Nail polish remover and whether it conducted electricity or not. Being a bit sad, I connected a battery and bulb with a small amount of nail polish remover in the circuit, yet it would not conduct electricity. Does this mean that if some got into the remote, it could ruin it? It is Ethyl Acetate, although it says that Aqua is in it as well. Alan