tell me about how to reduce pH of water sample during waste water treatment without any chemical?
552552
The only way I would suggest is just give some bribe to the person who is analyzing your water sample. If you can't manage that then email to me on ammyjhon@yahoo.com since there are hundreds of other loopholes to get out of it from Govt Agency like (Pollution Control Board).
684804
use bicarbonate of soda,its short term though
203892
Distill the water. The WATER comes out of the tubes, not the salt.\n    As for testing, just drink a little of it. Do you *LIKE* it?\nNo? Well you better make sure that you don't put it back in the same cup you used for collection.\nOK the water will still pass an electric current through it if it has any impurities. Completely pure water will not.\nUnless you use more than around one volt, in which case the bubbles you see escaping will be hydrogen and oxygen. That means you've gone too far with the testing part.
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.
549401
Purifying water is far more expensive than that... You should get rid of organic compounds (floating and in solution), kill microbiological creatures... And assure that it won't be harmful for your health after all that, besides taking care of pH, smell, etc.
788768
Just the usual stuff.  Use an electrolyte (H2SO4/HNO3), a couple of electrodes, a reduction table of half cell potentials, and some electricity.
382713
The best method is pH meter (other than color indicator). \nTo measur the exact end point, what you have to is:\n\nStart the titration\nInsert a pH probe inside the solution\nNow start adding base to the acid and swirl the solution properly\nKeep track of your pH readings..\nYou will see a sudden jump (some thing like from 5.6 to 9.0 even with one drop addition)\nthats end point.
836404
No, plain water is not adequate.  It has no buffering potential.  A buffer is a acid or base dissolved with a sufficient quantity of its salt to accept significant additions of acid or base while resisting drastic pH change.\n\nThere are lots of tables you can find in most inorganic chemistry textbooks, technician's handbooks, the Handbook of Chemistry and Physics, the Merck Index, etc that tell you what solutions to make and how to mix them to achieve a buffer with good activity at any given pH.  I don't have a library in my room and I can't really find a good websource so you'll have to do the legwork.  Prepare the solutions and combine them as stated.\n\nThen, based on the components, you will have to determine if the molarity (of what?) matches the ionic strength you have.  I have provided a link to a webpage that describes the ionic strength calculation.\n\nGood luck.
954456
Well use a series of steps.\n\n1st step add Calcium Carbonate. This will fizz in the case of the vinegar, as acid plus carbonate gives salt, water and carbon dioxide. U can even test the gas to be CO2, as it turns lime water milky. U will eliminate the vinegar from further tests.\n\n2nd is separate the alcohol from the salt and fresh water. Do this by testing with Cobalt chloride paper. The paper changes from blue to pink if any water is present. The sample which doesn't change the paper would be the alcohol.\n\n3rd is to separate the salt water from the fresh water. Do this by adding silver nitrate followed by aqueous ammonia. Salt contains sodium chloride, so the presence of the Cl- ion will cause the formation of a white precipitate that dissolves in excess alkali.\nSo, the one that produces no ppt is therefore pure water.
1086630
Do you mean demineralized water?\n\nReverse osmosis is the most economical way.\n\nCheck out millipore, look up their RO products.
79660
Boric Acid\nYou can mix it with sugar for best results.\n\nMake sure no kids or pets contact it.\n\nIt has nothing to do with food/water, explaine aunt hills.  I have seen them with no food or water in sight.  Maby you are thinking of roaches.
7198
You may wish to try abe.com.  I am a librarian and I occasionally source texts from abe.com, alas with the title you provided there is nothing available.  I also checked alibris.com but they had no copies. \n\nI also checked WorldCat, a union catalog for thousands of libraries worldwide and I found no holdings with that exact title.  There was one called <<Standards of drinking water quality and methods of examination applicable to European countries; report on a study.>>\nAlso available in WorldCat was <<Standard Methods for the Examination of Water Sewage and Industrial Wastes>>. \n\nYou may wish to make certain the title is correct, also providing an author would help.  \n\nWorldCat is a fee based database which your librian can access for you or help you access on your own. \n\nGood luck.
508304
slightly acidic... that's why the add lime when disinfecting the water.  the addition of lime raises the pH a bit which buffers the natural acidity of the water to help prevent lead and copper leaching from residential plumbing.  the lime helps minimize corrosivity, and if it does that and since acids are corrosive, when they disinfect the water they are making it nuetral by adding a weak base.
814606
pH samples need to be analyzed immeditely for regulatory purposes.  There is no holding time.  They must be test ASAP.
980576
Clean water has the same ph as human blood and milk.  Depends on the acid/alkaline balance of the contaminant. water is the best solvent and carries traces of everything it comes into contact with.
1095569
check this link-- http://www.orgsyn.org/orgsyn/prep.asp?prep=cv6p0468.\n\ninstead of Me use Ph
985052
Tap water.\nSoap breaks down the surface tension.