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Hard water is water that has high mineral content (in contrast with soft water). Hard water minerals primarily consist of calcium (Ca), and magnesium (Mg) metal cations, and sometimes other dissolved compounds such as bicarbonates and sulfates. Calcium usually enters the water as either calcium carbonate (CaCO3), in the form of limestone and chalk, or calcium sulfate (CaSO4), in the form of other mineral deposits. The predominant source of magnesium is dolomite (CaMg(CO3)2). Hard water is generally not harmful to one's health. The simplest way to determine the hardness of water is the lather/froth test: soap or toothpaste, when agitated, lathers easily in soft water but not in hard water. More exact measurements of hardness can be obtained through a wet titration. The total water 'hardness' (including both Ca and Mg ions) is read as parts per million (ppm) or weight/volume (mg/L) of calcium carbonate (CaCO3) in the water. Although water hardness usually measures only the total concentrations of calcium and magnesium (the two most prevalent, divalent metal ions), iron, aluminium, and manganese may also be present at elevated levels in some geographical locations. Iron in this case is important for, if present, it will be in its tervalent form, causing the calcification to be brownish (the color of rust) instead of white (the color of most of the other compounds). From Wikipedia under the
GNU Free Documentation License  greenfeet.com 400px x 400px | 18.20kB [source page] Click for larger image Close X Shower Kleener 22oz  wyomingoutdoorsradio.com 481px x 640px | 73.20kB [source page] Jerry Wesselius writes We did make it to Ocean for a couple days We had a time finding them but we managed to catch quite a few the last day Doesn t it always work like that From Yahoo Image Search: "Hard water"  grizzlycentral.com hardwater Sun, 25 Jul 2010 17:27:58 GM hardwater. . Summer Sucks. . hardwater's. Avatar. Join Date: Feb 2010. Age: 29. Posts: 511. Thanks: 88. Thanked 85 Times in 71 Posts. Rep Power: 6. . hardwater. is a splendid one to behold. Location: Great Falls, MT ...  abundancecreationnation.com Hamish Hayward Fri, 23 Jul 2010 16:21:19 GM The majority of homes are fed with a domestic water supply which provides . hard water. . . Hard water. is simply a designation which is applied to water which has a relatively high level of dissolved minerals in it. ...  tjstanningandhair.com admin Sun, 11 Jul 2010 18:46:30 GM Ask anyone with well water and they will tell you, especially if they do not have a water softener. And even then, water can also wreak havoc with your hair. The symptoms of the disease hair by . hard water. or well water may include dry ... From Google Blog Search: "Hard water"  news.google.com Journal Gazette and Times-Courier In the northern states where the hard water stays longer, ice fishing houses are common with all of the amenities of home. Well, most of them at least. ... news.google.com Washington Post In the heat of the moment it's hard to recall what happened. So we do believe there is a chance there is more bad news to come. Arlington, Va. ... and more » news.google.com Jacksonville Daily News It's hard to comprehend with Western eyes what's really going on, he said. He said villagers have to walk anywhere from a mile to five miles each morning ... and more » From Google News Search: "Hard water" Does hard water effect how I can start cuttings to root? Q. I have tried to root several cuttings from several plants with very little luck. Could it be that we have very hard water? Should I use bottled water? We can't afford to buy a water softener. Asked by Elly - Wed Jul 5 17:02:57 2006 - - 2 Answers - 0 Comments A. i dont think so i have hard water and have gotten roots from cuttings it might depend on the plant you are trying, you also might need to use a hormone treatment Answered by san_ann68 - Wed Jul 5 17:09:39 2006 How can I keep hard water stains off of my dishes and glassware? Q. We have hard water in our house (not well water), and my dishes, glasses and silverware have white, filmy stains on them from being in the dishwasher. Is there something I can put in the dishwasher to get rid of them and keep them away once and for all? I've tried using a rinsing agent, but it doesn't work. Any solutions you can offer will be greatly appreciated. Thanks for answering. Asked by No Shortage - Fri Feb 19 22:32:16 2010 - - 6 Answers - 0 Comments How best do you clean hard water stains from the inside of a crock pot?
Q. This pot was used to heat babies' bottles, and has accumulated quite a ring of hard water stains. What commercial or homemade remedies will work best? Asked by tootlebugsmom - Sat Jun 27 19:36:20 2009 - - 3 Answers - 0 Comments A. Try baking soda. Don't ever use anything like a soap pad, because the steel wool can scratch the inside. Answered by Alex - Mon Jun 29 01:00:22 2009 From Yahoo Answer Search: "Hard water" |
