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Nitrogen Dixoide?

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Author	Topic: Nitrogen Dixoide?
poison Frequent Poster	posted July 20, 1999 04:29 PM Does any one know how to make Nitrogen Dixoide? Im not sure if i spelled it right its used to concentrate nitric acid. Thanks -pois
poison Frequent Poster	posted July 20, 1999 05:02 PM I also need sodium nitrite NaNO2 does any body know how to make it? Or at least some where to buy it?
megalomania Administrator	posted July 20, 1999 08:40 PM There are a few ways to go about concentrating nitric acid. These do not involve what you want, but they do the same thing. Adding sodium nitrate to concentrated sulfuric acid and heating to distill it will break down the nitrate into highly concentrated nitric acid. This requires an all glass setup as the nitric acid is quite destructive towards rubber and cork. You can also concentrate existing nitric acid by adding it to concentrated sulfuric acid and distilling. Getting nitrogen dioxide gas is about the best way to concentrate nitric acid because it converts any water in the acid to nitric acid on contact, and it can create fuming acid which can not be purchased without including your soul in the deal. Heating nitric acid will cause it to decompose into nitrogen dioxide, the higher the concentration of the acid, the easier it is to decompose. Making nitroglycerine by adding glycerine to mixed acids of nitric and sulfuric will decompose, not explode, into a whole lot of nitrogen dioxide gas if allowed to go over 30 °C. A simple method of preparing nitrogen dioxide in the lab is as followes: Prepare an acidic ferrous sulfate solution by adding 13.5 g of ferrous sulfate^.7H₂O (this a hydrated form, it only affects the weight) to 36 mL of water and add 4 mL of concentrated sulfuric acid. Adding 2.5 g of sodium sulfite (thats NaNO₂ not nitrate NaNO₃) and shaking vigorously will produce nitrogen monoxide, NO, gas. Upon contact with air, nitrogen dioxide will be formed. Making this in a flask, say, you would have to have some king of air pump, even blowing on the end of tube, flow into the flask, then lead that gas into the acid. This volume will make about 600 mL of NO gas. I would not make too much at once as it may not react fully with the air. There are probably other ways that I am forgetting. You can make your own ferrous sulfate by reacting iron metal with concentrated sulfuric acid. And sodium nitrate can be made by decomposing sodium nitrate by heating it to between 380-400 °C. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
poison Frequent Poster	posted July 21, 1999 04:02 PM Can i use ammonium nitrate instead of sodium nitrate in the distalation method?
sharky unregistered	posted July 21, 1999 06:31 PM While on the subject of acids, I went to the local hardware store in search of Sulfuric acid... I asked an attendant for a very strong cleaner that contained Sulfuric acid.... He brought me MURAITIC acid. I didn't even look at any lables and bought a gallon of it and went home. Then i read on the back that it was hydrochloric acid.... What is the brand name of the product that contains SULFURIC acid and what is it used for? Next time mabe I can just ask him for the brandname.... thanks
megalomania Administrator	posted July 22, 1999 02:00 AM Hydrochloric acid is sold in hardware stores for a cleaner of grout from newly made brick or to clean swimming pools. He probably heard "cleaner" and got that acid. Sulfuric is sold as a drain unclogger. Both the HCl and the sulfuric acid are generic products, very rarely do they have a "brand" name so to speak. I have here a gallon of Zip Strip brand hydrochloric acid, they make a lot of solvents and cleaners mostly for painting. And according to my little red book from my great chemical survey (damn I still gotta finish that...) there are 3 brands, 2 of which are Knockout and Rooto Drain Opener. I didn't write down the 3rd because they were alot more expensive. I have here $3.99 a quart for Knockout, $6.29 a quart for Rooto, and $9.99 for 2 quarts for Rooto. Thats 93% stuff and all in US dollars. Tell me, what are the prices in your neck of the woods? Oh, and don't let that fool monkey at the hardware store sell you drain opener that is liquid sodium hydroxide because those companies make that as well. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
megalomania Administrator	posted July 22, 1999 02:03 AM For poison...probably just missed ya Yes, you can use ammonium nitrate, the "nitrate" is the important part. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
ezekiel Frequent Poster	posted July 22, 1999 05:16 PM I buy 35% hydrochloric for Ł1.50 a litre , and 100% sulphuric for Ł1.20 a litre (sorry , don't know what that is in dollars)
sharky unregistered	posted July 22, 1999 05:18 PM In answer to your question about prices, I got the MURAITIC acid for $2.50 something for a gallon jug of it. As for the SULFURIC i am going back tonight to try to find it. sharky
poison Frequent Poster	posted July 22, 1999 07:35 PM The band name for the sulferic i got is called "Drain Kleen" i hope this helps PS:I found it at ace hardware.
sharky unregistered	posted July 22, 1999 10:45 PM i went to ace and bought some sulfuric acid.... It said on the side that it contained "concentrated and inhibited sulfuric acid" and then it said it contained sulfuric acid and water. It was called H-T Drain cleaner.... I got it and took it home, when i opened it, the liqiud was a dark brownish black like motor oil..... What is wrong with it?? thanks
poison Frequent Poster	posted July 25, 1999 07:52 PM You can try and filter it i know it works when you drain a car battery it looks greyish but once it is filtered it turnes clear try using a shop cloth to filter it. You can also try and boiling it but im not sure how it is gonna work i have never had that problem. I hope this helps -pois PS: Do you or any body else have icq that don't have added?
sharky Frequent Poster	posted July 26, 1999 05:35 PM I have icq, my number is 1314599. sharky
megalomania Administrator	posted July 28, 1999 12:05 PM Don't be a filtering nothing with a shop cloth, you will merly destroy the cloth and contaminate the acid further. The stuff for drain cleaner is 90-95%, strong enough to eat through fabric fast. The brownish color is most likly a minor iron impurity from the manufacturing process, harmless for drains, and not much of a problem in the lab. Unless your work requires ACS grade acid, it is fine. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
Ho ju Moderator	posted August 02, 1999 09:10 PM I do not know if it is just me but i thought you could go into a hardware store and ask for pure sulferic acid to refill your car battery. Is this not true. Cause i know someone that has a jar of pure shit that his dad uses to refill there batery.
ezekiel Frequent Poster	posted August 03, 1999 08:38 AM I get a drain cleaner type , it is tinted red , possibly brown if you look through a large volume of it. It is 99% pure , and works fine for me - as mega says it is probably a little contamination.
megalomania Administrator	posted August 03, 1999 05:20 PM The sulfuric acid that is sold for car batteries is typically 50% concentration and a lot more expensive for what they give you. It is pure though, needlesly maybe. Another source of that discoloration in high concentration acid is excess sulfur dioxide/trioxide from a little bit of decomposition, nothing to worry about for most applications. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
Nitrochem A New Voice	posted August 04, 1999 12:01 PM It may indeed be an iron impurity, but many drain cleaners add a coloring agent to make it easier to detect spills. The stuff I have is black. It should be even less of a problem than an iron contaminant.
mosaz Frequent Poster	posted August 25, 1999 06:51 PM ugh! I didn't search for a long. But I've found none drain opener with sulfuric acid. Perhaps I must take a look at bigger shops. I've only found drain opener with crystals of sodium hydroxide. Is it possible that most companies only sell this shit because of the dangers from sulfuric acid for the Nature?? OR it's just da law in my country What about a synthesis for sulfuric acid??

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