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70% nitric acid

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Author	Topic: 70% nitric acid
sharky Frequent Poster	posted September 23, 1999 07:23 PM Has anyone found a cheap source for 70% nitric acid? Pyrotek has it for 17.00 a qt. but you have to pay a 18.00 shipping fee. Are there anyplaces with it cheaper than this? thanks
megalomania Administrator	posted September 24, 1999 02:50 PM I found a 35 gallon supply of appx. 60% nitric acid for $100 plus a refundable $250 drum deposit. A good deal in the long run. The acid is sold by a janitorial supply company. Strangely enough they told me they don't carry ammonia solutions, too dangerous ha ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
*Igenx* Frequent Poster	posted September 24, 1999 08:38 PM What's the address?
Ho ju Moderator	posted September 26, 1999 07:37 PM is there any way you can turn 70% nitric acis into red fuming 100% nitric acid? ------------------ Knowledge is power, power leads to corruption, corruption is a crime, crime doesn't pay. So if you know to much you will go broke!!
dlwdaw Frequent Poster	posted September 26, 1999 08:37 PM dont quote me, dont try this, and correct me if I'am wrong. if NO2 evaporates before water. then couldnt you just use the method of making HNO3 to conc. it? you know heat condense... etc.?? ------------------ HookD iN FoNikzzz WeRkd feR Me.
AlShoot Frequent Poster	posted September 27, 1999 01:05 PM I don't think that to let the water evaporate will concentrate the acid because the acid is in solution under ions form.A method is maybe to make the water react and so disappear from the solution
megalomania Administrator	posted September 27, 1999 04:44 PM You have to distill the nitric acid with highly concentrated sulfuric acid, which traps the water, or add nitrogen dioxide to the dilute nitric acid, whics reacts with the water forming more nitric acid. In industry they use a system of sulfuric acid distillation equipment to concentrate nitric acid. The nitric acid is mixed in equal portions with sulfuric acid. The 99-100% sulfuric acid holds on to some of the water of the nitric acid (65-70% is how it is made to start). The nitric acid is somewhat more concentrated, 80-90% by now. The sulfuric acid is purged and distilled itself to remove the water it has accumlated. It is then remixed with the nitric acid of higher concentration and the process is repeated several times, each time the nitric acid approaches 100%. To get fuming nitric acid, you must bubble in excess nitrogen dioxide gas. ------------------ Visit Megalomania's Explosives and Stuff at http://surf.to/megalomania
Nick A New Voice	posted October 04, 1999 07:39 PM Pyrotec?? how do i order from them?? they have no customer order form??
Ho ju Moderator	posted October 05, 1999 05:03 PM send for a catalog. they have an order form in the catalog and they explain there VERY complicated shipping instructions. ------------------ Knowledge is power, power leads to corruption, corruption is a crime, crime doesn't pay. So if you know to much you will go broke!!

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