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Nitric Acid??? Answered

If I electrolyze potassium nitrate mixed in water, then would it bubble out potassium and oxygen with an exothermic reaction to make nitric acid? From what I think I know I would be taking the potassium ion away from the nitrate ion so the nitrate would then combine with the water releasing oxygen to form nitric acid.

Question by Nexoid    |  last reply


Fun with sulfuric acid?

I've got some leftover battery fluid I used to try (unsuccessfully) to resurrect an old motorcycle battery. I was just going to neutralize it with water and baking soda and pour it down the drain, but I thought I'd ask for suggestions. What say you?

Question by Ish Kabibble    |  last reply


lead acid Q's? Answered

So me and papa have been working on farm equipment and an electric golf cart (and I had issues with my jeep cranking over, with a presumably bad battery), but my lack of knowledge of these batteries used in the machines is starting to get to me. Differentiating normal behavior from behavior indicating a bad battery or other problems is not really something I can do right now. What I know: Topped off voltage: 15 (ish) volts ( details?) Dead flat voltage: 10 volts Cold cranking amps: indication of maximum current a battery can deliver in the cold (details ?) Reserve minutes: equivalent to "AH" rating times conversion factor lead acids can take a beating and survive without a, less say, "exciting" failure mode What I don't know: How am I supposed to know what I don't know???? ;) What is a typical topped off voltage for a battery? Does the voltage sag from say 16V when charger is removed? What characteristics change as they age? I would guess increased leakage current/resistance, reduced current capability and reduced capacity (?) would you lose a bit of capacity real quick after cycling a deep cycle marine battery a few times? I know lithium ions do, every new phone I ever had has lost at least 10% of it's capacity in a few short months as it got "broken in." What about maximum charging current? Does ripple current matter?

Question by -max-    |  last reply


A dangerous acid is in schools

I would like to start a poll here.Dihydrogen Monoxide is a dangerous acid that can kill in a multitude of simple ways. It is all over schools and I would like to know:Do you think it should be banned?pleases leave your comment in the appropriate area below, and at the end of the week, I'll tell you what it is. (and if you do know what it is, please don't spoil it) I would like to see your respinse before you research.======ANSWER======Ready?..................IT'S WATER!Dihydrogen mononoxide - H2O , water.Some students at ATM University sent around a research study and a poll and around 80% of the student population voted to ban it. This is an interesting effect of how ingnorance can have a significant affect on life. Moral: DO THE RESEARCH!

Topic by gimmelotsarobots    |  last reply


acid that liquidphies matel

Frist you need hydrochloric acid ,{you can find this in bathtroom cleaner's}. then you will need ethylene and glycol. mix these things togather and you get acid {and not the type of acidthat makes you high, the one that melt's metal}.

Topic by zeogeo13    |  last reply


Zinc+hydrochoric acid=?

I put a zinc coated nail into hydrochoric acid and the nail started to bubble.The bubbles came to the surface and when they popped a small cloud of some gas appeared and I was wondering what this gas was.I think to was hydrogen.

Topic by T.A.G.    |  last reply



What kinds of acid, if there is any such substance, changes in acidity with temperature?

I was thinking of creating a battery that could charge with heat. In small gadgets we keep in pockets, these batteries could charge off our body heat. It's just something I'm interested about.

Question by ANDY!    |  last reply


Desulfating Lead Acid Batteries? Answered

Does anyone know what it means to desulfate a lead-acid battery? What does It do? Thanks :)

Question by Yonatan24    |  last reply


Safe transportation of hydrochloric acid?

I have some very old bottles of muriatic/hydrochloric acid that I need to get to the dump. I was planning to pack them in a cardboard box with paper packed around them to keep them from toppling over. Is this a good plan? Is there anything I need to be worried about?

Question by ThisIsMyNameOK    |  last reply


Lead Acid battery repair?

I have a dead  6  volt 4ah   lead acid battery and 12 v 190 amp  liquid  battery some one help me to bring it back to life 12 v battery i used with ups

Question by chnaveed.alam    |  last reply


borax, boric acid, flux

Does anybody know the relationship of borax and boric acid? Are they different forms of the same thing? Are they related at all? What if any do these have in relationships to flux to silver smithing. (I think the flux is Boric Acid but I am not sure.) I have a box of Borax, that I use to make liquid laundry soap. - I also used it to make crystal snow flakes - beautiful. Just curous.

Topic by gloflyer    |  last reply


Can guncotton be made from other acids besides nitric acid?

I'm just wondering, because there is a mix of sulfuric and nitric in the published process, if it can be done completely without nitric. If so, what other acids can be used?

Question by revelae    |  last reply



Why are sharpie pens acid resistance? Answered

What's the chemical compound of the sharpie to make it acid resistance? Such as for PCB etching.

Question by nfarrow    |  last reply


Overfilled SLA (lead acid) help!

What should i do its just leaking gas (I assume its hydrogen) should i keep chargeing till this stops or what? thanks for helping

Question by Daniel Deacon    |  last reply


Sulphiric(sp?) acid to etch pcbs? Answered

I am just wondering wether it is possible to etch pcbs with sulfiric acid because I heard it can dissolve copper. But i'm wondering if it will just dissolve the copper or if the entire pcb will melt. ~josh1324

Question by josh1324    |  last reply


building a portable lead-acid charger?

I have two lead acid batteries rated 6v 4.5 AH (is AH ampere? or ampere/hour) boast/equalize 7.2-7.5v float 6.75-6.9v max charge current 1.35A both my batteries are identical the question now is.. i want to build a charger for it and something to lower is current so some feature i want is  1) rechargeable by a simple plug in adapter (i have a 12v 4A ac-dc adapter) 2) output of usb voltage and current (optional adjustable current and voltage) 3)led indicates 4)optional: a switch to power usb devices directly from the adapter/bypass battery to extend battery life 5)around 5 usb out puts? i want to build this project cos i have the won batteries which are in good conditions but not being used in anyway.. i hope someone can help me with the technical specs..especially on the circuit diagram   have access to an electrical components shop but it does not sell chips so i need to salvage them

Question by michaelgohjs    |  last reply


12v to 12v lead acid charger? Answered

Is there any way to make or buy a 12v battery charge another 12v battery?

Question by Daniel Deacon    |  last reply


Making a stink bomb with sulphuric acid?

HI there I have been told of a nasty stink bomb by mixing said acid with creosote-is this a viable proposition-if not does anyone have any safer/easier methods that will create a stink for a few hours-it is for the good of the nation. Thanks dudes-much appreciated .

Topic by louisceline    |  last reply


potassium nitrate reaction with hydrochloric acid?

I recently mixed sugar and potassium nitrate to make a rocket. i ignited the mix and after it was done burning it left a molten pool of what i assume is potassium nitrate. i pored hydrochloric acid on the solidified pool and i produced a large amount of heat and was creating a brown-red gas. the gas was heavier than air because it sank to the bottom. can anyone tell me what this gas was?

Question by myakka    |  last reply


PLA (Polylactic acid) Trioboelectric series?

Hello, I am currently trying to figure out if I can make a Vandegraff generator with PLA instead of PVC, but cannot find PLA on the triboelectric series chart. Any ideas?

Question by Cheesey125    |  last reply


lithium vs lead acid for gokarts

For electric go karts, which one is better (for the money)? Lead acid is by far much much cheaper, but it is much much heavier. With a heavier battery you need a stronger frame, which weighs even more. With all of this weight you need an even stronger motor to push it all. With lithium you can build a lighter, cheaper frame, and power it with a weaker and cheaper motor and still obtain the same speeds. Lead Acid batteries take up about 1/3 the weight of a gokart with rider (1/3 being the driver, and the other third being chasis and motor and such). Reducing the weight by about a third (honestly, lithium, batteries weigh like nothing) could have huge performance improvements. So, does spending more money on batteries, and saving money on chasis and motor equal out to spending less on batteries and more on chasis and motor?

Topic by guyfrom7up    |  last reply


where do i buy citric acid? Answered

Where do i buy citric acid?

Question by wenpherd    |  last reply


WHERE DO YOU GET CITRIC ACID?

WHERE WOULD I BUY CITRIC ACID?

Question by BROKEN-DOLL    |  last reply


What can I do with all this sulfuric acid?

I have a half gallon sitting around. Anything neat I can do with it?

Question by iPodGuy    |  last reply


Can I make sulphuric acid in the following way?

I have read most instructables but I was not able to find sodium bisulphate, sodium metabisulphate etc. I check the web and find that Iron(ii)Sulphate -->(Heat) Iron(iii) oxide + sulphur dioxide + sulphur trioxide Can I dissolbe the sulphur dioxide and trioxide into water and form sulphuric acid? I have make a diagram, have a look!

Question by cyberpig    |  last reply


What dissolves plant matter? Answered

Hi, Thanks for stopping by. I do a lot of demo's for my family's kids to show how stuff works - it seems to work as they remember a lot, and they ask for more. I want to show how tough plant life is, and I have a range of acids to show how plants do not dissolve easily (to do with the cellulose) - does anyone know what would dissolve plant matter, please? Many thanks.

Question by kevinhannan    |  last reply


does hydorchloric acid eat through wax? Answered

I am trying to make naruto style headbands out of stainless steel and i want to know if hydrochloric acid will melt through wax so i can apply the hydrochloric acid specifically to where i want it. i am planning to use about 1/16 inch thick stainless and have the acid eat through about half of it. if it does eat through wax is there any substance that it wont eat through? thank you for all of your help!

Question by Thor007    |  last reply


What can I do with hydrochloric acid? Answered

I have about two gallons of 12 M Hydrochloric acid. What can I do with it? And I don't want to dissolve metal or put magnesium strips in it or dump baking soda in it. I'm looking for something creative, something interesting that I can do with it.

Question by cdubnbird    |  last reply


Refining Gold Using Vinegar (Acetic Acid)?

Though I've never refined gold, I've heard of gold refining using different acids. I've seen people use vinegar and salt to etch pcb boards. I'm wondering if anyone knows how to refine gold using vinegar so that I can remove it from ram sticks etc.

Question by mykiscool    |  last reply


Why is blk water basic instead of acidic?

Recently I came across a brand of water called blk, named for the black appearance of the water caused by the addition of fulvic acid. The manufacterer's website states that it is "exceptionally pure artesian spring water" with the addition of the company's blend of fulvic and humic acid. Now, we all know that the PH of pure water is 7, but if we add acid, wouldn't that make it more acidic? Apparently not, seeing as the manufacturer's website also states that the PH of blk water is 9, making blk water more basic than regular water. I would think the fulvic/humic acid's addition would make the PH acidic, not basic. Can anyone explain this?

Question by ALogan97    |  last reply


Converting a 12V Lead acid to a hydrogen generator? Answered

Is it possible to take a 12V lead acid battery, remove the acid from all 6 cells and replace with water and connect to a 12V power source, and get H2 and O2 gasses bubbling out the top? The reasoning behind this question is that the 12 volt lead acid batteries are made of 6 cells, each producing about 2 volts, connected in series.  If instead of producing 12V we could (by removing the acid and replacing with salt water) feed it 12V, wouldn't we have 6 hydrolysis cells running at 2V each?   6 cells of 2V hydrolysis cells is nothing new, but has anyone of you ever tried to convert a lead acid battery before? Is the lead going to be any good as electrodes? Will the lead oxidize too fast? Will the there be any chemical reaction that would change the produced gasses? Should I be worried about lead poisoning for even typing these words? Should I be asking anything else I haven't thought about? Thanks!

Question by Morgantao    |  last reply


how to charge 4v lead-acid battery?

Question by pj2012    |  last reply


What's the best procedure for making salicylic acid? Answered

Is it possible to make salicylic acid from aspirin using pretty common household gear?  If not, what would be the procedure for deriving it from willow? and what kind of willow to use?  Would it be more cost effective to buy crystalline salicylic acid?  Bonus Question:  What ppm would be good for using it as a facial cleanser and an anti-dandruff shampoo? or rather, what ppm would be bad? If it matters, I've done a year of chemistry and a year of organic chemistry with labs.  I sucked at the classes but rocked the labs like KISS at an assisted-living activity day.  

Question by AngryRedhead    |  last reply


Charging mobile with a 6V lead acid battery?

Hello, I want to make something like power bank. i want to charge my mobile with a 6V 4.7Ah battery. My mobile charger is rated 5v 500mA. How to make this circuit?

Question by Rahul Mitra    |  last reply


How do you concentrate citric acid? Answered

I'm making this thing, and I was wondering if concentrating the citric acid (from calamansi (Philippine lemon)) would increase output. My friend suggested boiling it, but is there any other easy way of concentrating it? If not, then let boil.... For the meantime I'll boil it to check if it works. If results come back positive, I'll delete this question. If results come back negative, I'll let this question float around instructables for a while. (Please do help me in putting this in the right category)

Question by nutsandbolts_64    |  last reply


Charging a valve regulated lead acid battery?

A while ago (a few months maybe?) I bought a cheap robot vacuum cleaner from a car boot sale. I decided to take it apart as it was pretty useless as a vacuum cleaner. When I took it apart I kept the battery and the charging plug (wall wart) together. Now I want to use the battery but I am not sure how to connect it to the charger. (I tested the battery and it still works.) The battery is a 6V 2.8Ah valve regulated sealed lead acid battery. On the front of the battery it says it needs a constant voltage charge of 7.25-7.45V and less that 0.84A.  The plug that came with it is a 7.5V 600mA wall wart.  I have a vague recollection of how it was connected up. I remember that there was a diode in the mix. The positive terminal was connected to a switch and then the main control board. The negative terminal connects to the main control board and there is also a small wire that was connected to something else. I would like to know how to connect this up in such a way that is safe for charging the battery?

Question by dracorabbid    |  last reply


Please suggest me a charging circuit for 12V 7.2 Ah lead acid battery without application of transformer

                                     I am using 12V 7.2Ah Amaron Quanta lead acid battery for an Emergency Lamp. I am using the following charging circuit which is attached with this post. In this charging circuit, 230 ac voltage is given as input to the 16-0-16 transformer. The output of transformer is filtered through rectifier diodes and then given as input to the LM317 of charging circuit. As of now transformer is needed to step down the ac input voltage. I need a charging circuit without a transformer. So kindly suggest me a circuit which consists of input rectification without a transformer. Please suggest it with a moderate cost. And also I need one more clarification. I am using "Constant Voltage" - trickle charging method to charge the battery. I am using a load of 2 lamps of total 110 W lamps which stand for around 50 minutes of full charged battery. The lamps will cut-off at 9.5-9.8 V. Then it takes around 16 hours to make the battery full charge. Could you please confirm me if I can charge the battery soon (min 6 hours). Is so at what rate I should use the load. Please help me in this situation.                                      I mention the website link which I am currently using for charger circuit.                                     http://www.circuitstoday.com/lead-acid-battery-charger In this circuit, I am using a 16-0-16 transformer to convert the line voltage of 230V ac and bridge rectifier diodes to convert it into dc. Please suggest me a circuit without the application of transformer to convert 230V ac to dc.                                         My mail id is tvibakar@gmail.com. Thanks, Thomas.

Question by tvibakar    |  last reply


I have a question about acid blockers ( prevacid ect...) interacting with acid absorbers ( tums , ect...)? Answered

Is there any problem caused by taking an acid absorber when you are on a prescription for acid blockers ( IE taking tums while on prevacid )

Question by gearhead1951    |  last reply


What dissolves plant matter? Answered

Hi, Thanks for stopping by. I do a lot of demo's for my family's kids to show how stuff works - it seems to work as they remember a lot, and they ask for more. I want to show how tough plant life is, and I have a range of acids to show how plants do not dissolve easily (to do with the cellulose) - does anyone know what would dissolve plant matter, please? Many thanks.

Question by kevinhannan    |  last reply


Alkaline

After dipping paper in vinegar which I needed to do for an art project, I would now like to prevent it from deteriorating. How can I neutralize the paper so it lasts,

Topic by Yankazoo    |  last reply


GIBBERELLIC ACID MIX? When using gibberellic acid for miracle fruit tree,what is the concentration mix ? Answered

I recieved my gibberellic acid kit from united nuclear and the bottle say's 1 part acid and 1 part water to make 50% stock solution.the mixture sheet say's how to mix for 250 ppm and 500 ppm, which is the right mix? the spray bottle is marked for the 2 different concentrations of 250 ppm and 500 ppm.Which is the right mixture of these 2 or is the 1part acid and 1 part water the right mix? i am not good with numbers or measurements, so please be spcific! thankt you !!!! As requested here are the instructions for the mix.The mix is to be used on seeds from the miracle fruit tree!

Question by GROWFAST    |  last reply


How do I charge lead-acid batteries? Answered

I have two 6-volt ~4.5 AH batteries, and I'm not sure how to charge them. I know that overcharging and voltage regulation can be an issue. They have markings on the outside that say "standby voltage ( voltage)", "intermettent use voltage (voltage)", and I was wondering what voltage I use to charge them, how I know when they're fully charged, etc. Advice is welcome. Thanks!

Question by mad magoo    |  last reply


What lead-acid battery to use (12v, 5-10A, min. 1h) ? Answered

I want a battery that is capable of delivering 12V for a minimum period of an hour. My circuit will take 5-10A. And what loader should I use with it?

Question by Coding Kid    |  last reply


How could I charge two Sealed Lead-Acid batteries at the same time and power 2 differnet devices? Answered

Could somebody please help me? I cant find a way too charge 2 SLA's at the same time and run 2 seperate devices and make it so I can power one device one one battery and another device powered by the other battery. There some some writing on the battery casing  But I don't really understand but it reads: ______Constant Voltage Charge_______ I        Voltage Regulation                                I I           Cycle Use           14.4 - 14.7V            I I        Standby use           13 .15 - 13.8V        I I    Max charging current                  1.2A       I _________________________________ Any help would be appreciated. Thanks in advance.

Question by CyclonicNinja    |  last reply


if you have ever had acid reflux then open this!

I woke up really early one morning with an awful feeling in my mouth and throat. Acid Reflux. Evil. I did some research and i found a site reccomending apples. I walked over to the fridge and grabbed a cup of applesauce. GONE instantly! none of the medicenes worked, but the applesauce worked! So if that ever happens to you EAT APPLES!  I remember lots of people on here complained about it so I figured i'd post! tell me how it works for you!

Topic by Zaphod Beeblebrox    |  last reply


If I have the pH and volume of 2 solutions, and the target pH of a combination of them, how do I calculate how much... Answered

 If I have the pH and volume of 2 solutions, and the target pH of a combination of them, how do I calculate how much I need?

Question by BretMattingly    |  last reply


Which Lead Acid Battery Is Better For My Needs?

Hello, Which battery do you think I should buy. I need reliability good performance and long service life. I will be useing them in series with a 250 watt 36 7 amps constant 10+ amp spikes 36 volt electric scooter. I was wondering which is higher capacity at 7 amps discharge and which would last the longest please can someone help me decide :)   http://www.component-shop.co.uk/html/sla12v7ah.html        - 7.5ah kinetec http://www.component-shop.co.uk/html/sla12v9ah.html        - 9 ah  outdo http://www.componentshop.co.uk if the links dont work

Question by Daniel Deacon    |  last reply


Chemistry Questions: What do you get from combining salt, white vinegar and cupric oxide? And what can be done with it? Answered

In my enameling work, I sometimes use a mild homemade pickling solution to remove firescale (cupric oxide) from copper. The pickle is a saturated solution of white vinegar and kosher salt, kept hot in a Crock Pot. After heating the copper pieces in a kiln, a layer of cupric oxide forms on the surface, which is then dissolved in the salt/vinegar solution. After a while, the solution turns a lovely blue color from the dissolved copper. If I forget to put the lid on the pot, eventually the solution evaporates, leaving pretty blue crystals that look a bit like copper sulfate. So, what have I got here? I don't want to just dump it due to the copper content. I'd like to figure out something to do with it, but first I need to know what it is. I'm thinking it might make a good electroplating solution, but that's just a guess.

Question by RavingMadStudios    |  last reply