Can you take a FRP tank lined with PFA that had HCl acid in it and convert it to a sulfuric acid tank?
337659
Contact the tank manufacturing.
624341
A solution that contains an equivalent amount of an acid and its conjugate base.
849149
Sure.  Any element can be purified.\n\nNitrogen is fairly easy.  All you have to do is liquify air and let the oxygen and other gases boil off at higher temperatures.  Just reduce the liquid down to around 75 degrees Kelvin.  Water vapor, CO2, and Nitrogen oxides will form solids, which you can decant the liquid from.  Then raise the temperature to about 78 degrees and the nitrogen will boil off (at 77.K, -196C), leaving oxygen which boils at 13 degrees higher.  Collect the gas, nitrogen, that boils off.  If you need to make it even purer, repeat the separation process with the "pure" nitrogen.
295881
Depends on the manufacturer and the initiators they use. Usually, if its "acid free", it will say so on the box that you bought them in.
166600
The idea is to add the acid to the water and then pass a current through the water.  The water will split into Hydrogen and Oxygen.  The bubbles of these gasses can collected in tubes, the H will produce twice as much gas as the O.\n\nThe rocket can be powered by igniting the hydrogen.\n\nI think the citric acid is more reactive than absorbic acid, but any thing will do including vinegar (acetic acid).
646715
Its available. R-12 & R-22 are restricted by the EPA and being phased out.
106668
The external tank on the space shuttle uses liquid Hydrogen and liquid Oxygen.  I hope that helps.
765881
The liquid should be clear...litmus paper is white usually...turns pink to red when in an unbalanced PH soulution....Yukoneze
638011
Most would settle to the bottom of the tank and join all the rust that's already there. Carbon and Potassium Nitrate aren't soluble enough in gasoline (and neither is the graphite form of carbon used to polish the granules in commercial gunpower).\n\nHowever, the sulfur would partially dissolve and eventually ruin the car's catalytic converter. It might even lead to a bit of a smelly exhaust for a while.\n\nNow, if you didn't mean gunpowder, but mean nitrocellulose (which is a more common propellant in modern guns), then you could give him a nice octane boost. However, it takes several days to a week for nitrocellulose to dissolve in gasoline (depending on temperature and 'shaking'). So, don't expect much very soon.\n\nI think the thing you are missing here is that gasoline isn't burned in the tank. Only a small, filtered amount is burned in the engine at one time. That's why you get miles per gallon and not gallons per mile.
1081869
depends by conditions you can standarization acid with base \nprimary standar must have high relative massa formula and not react with air, must have high purities formula like sodium carbonate and oxalatic acid. if you want more just read  analize chemistry
125657
No, sadly. When you break down the chemical compund water, you would get Hydrogen in a gaseous state. You would have to compress it or cool it to bring it down to the temperature needed for it to condense into a liquid state.\n\nOh yeah, and I'm not sure, but I think the process is called electrolysis.
373023
Ultrasonic cleaners might be the best solution.\n\nHere is an excerpt from the source listed below: \n\nAlthough a range of possible alternative products is available today, experience has shown that substitution of TRI is not easy and even not feasible for a number of specific cases, either for technical or economical reasons. For all cases, substitution of TRI needs a thorough evaluation of all process aspects. For this reason we intend to work with the authorities in order to prevent a blanket implementation of forced substitution, and allow sustainable and continued safe use of TRI. \n\nThe alternatives you will probably consider first are the chlorinated solvents perchloroethylene (PER) and methylene chloride (MC). They match closest the technical features of TRI, such as non-flammability, high solvency power, a wide range of material compatibility and excellent drying and recycling properties.\n\nBeside PER and MC, you have probably also heard about other alternatives such as aqueous (water-based) alkaline systems, flammable solvents (e.g. hydrocarbons or modified alcohol based formulations), supercritical CO2 or hydrofluorocarbons (HFCs), etc.\n\nIt is impossible to say definitively which technology is best. That depends on your specific application, on what you are cleaning, which materials you want to remove, the cleanliness required, the variability of the parts cleaned, the throughput to be achieved, the cycle times, etc. \n\nFor example, for the cleaning of parts between two water-based manufacturing steps (e.g. galvanising), aqueous systems may be better, since parts are put into water phase again later and no energy-intensive drying step to remove the water is required. \n\nIf you need to have very clean and dry surfaces (for coating or surface hardening, for example) and if you have a variety of different metals or blind holes, narrow distances and very fine orifices or a lot of residual oil to clean, hydrocarbons or aqueous systems may not clean and dry well enough. In these cases, chlorinated solvents will offer most often the best solution as they are compatible with most materials, have a high cleaning power, are easy to dry, don't leave residual films and are easy to recycle with high quality by distillation. In addition, chlorinated solvents are today best suited to be used in modern closed systems with minimal losses. Their ecological performance has very much increased and, when used in well-operated metal cleaning systems, they outperform aqueous cleaning as long as drying is required. This has been shown by a Life Cycle Analysis carried out by Ecobilan. \n\nPER comes closest to TRI in technical performance and is often the first choice candidate as an alternative to TRI. However, it shows clear inherent technical differences, which need to be taken into consideration. On one side, PER offers a lower volatility and therefore is advantageous to minimise emissions in closed equipment. On the other side, PER has a lower solvency power and is therefore normally used at a higher cleaning temperature to achieve similar performance. This may raise concerns regarding the compatibility with specific metal working fluids and temperature-sensitive parts. \n\nMethylene chloride (MC) shows excellent cleaning properties already at low temperatures, favouring the cleaning of temperature sensitive parts. However, its high volatility makes emission control more difficult and requires special equipment.\n\nHydrofluorocarbons (HFC) and hydrofluorocarbon ethers (HFCE) are very expensive and show very limited solvency power. A thorough evaluation of the global warming potential is also required to choose the adequate product.
245701
Yeah. That's how they make it industrially.\n\nH2 + Cl2 --> 2HCl\n\nIt's not easy however, because it'll make HCl gas. You have to dissolve that gas in water for it to become hydrochloric acid. It also is highly exothermic, meaning it produces a lot of heat. Oh, by the way, if the gas comes into contact with your skin (you're made of mostly water), it'll form concentrated hydrochloric acid, right on your skin. Not fun. \n\nAn easier way is to making a dissolved table salt solution and add sulfuric acid, although obtaining sulfuric acid isn't easy either.\n\n2NaCl + H2SO4 --> 2HCl + Na2SO4\n\nDon't do it. You don't even know if it's chlorine and hydrogen gas, and you could get hurt very badly.
986564
I'm not 100% sure, but it seems like this procedure would neutralize any acids in the solution.  The Hydroxide would turn acid to water.  Any remaining hydroxide would combine with Calcium to form Calcium Hydroxide, which has a low solubility.  This would then precipitate out of the solution.  If the solution is mostly organic, it would also adsorb most of the water and remove it form the organic phase.
307121
technically yes you can use CO2 but it better be from an anti-siphon tank and through a co2 friendly regulator but even still not even close to ideal. liquid co2 will destroy the solenoid on this gun. much better choice is to go HPA. cheap tanks can go as low as $80. much better than the headaches of co2 for that type of gun
43703
How about the red fountain experiment with acids and litmus solutions? mail me at pr4kane@yahoo.com for furhter details on it. u can try electroplating,bleaching by chlorine/so2,the brown ring test with sulphuric acid etc.
412358
You could skip the Nitrogen Oxide and use Nitrous Oxide.   :o)