Water Pick
Posted on | February 18, 2010 | 8 Comments
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Water Pick
Why acids tend to pick up negative charges while dissolving in water?
I know why acids will always pick up negative charges, but I don't know why they only do this in water?
Because the definition of acids is that they increase the concentration of H+ ions in solution. Therefore if they lose the positive hydrogen they are negative.
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Waterpik® Dental Water Jet Professional Video
Hard Water - Is Yours Temporary or Permanent?
Although it may not be common knowledge, there can actually be a difference between the type of hard water that is supplied to homes throughout the world - water can have a 'temporary' or 'permanent' hardness. There are also common types of hard water depending on the ion (eg. magnesium or calcium) found in the water, which can cause different types of hard water stains and limescale formation.
Temporary Hardness
Temporary hardness is hardness that can be removed by boiling or by the addition of lime (calcium hydroxide). It is caused by a combination of calcium ions and bicarbonate ions in the water. By boiling the water, it promotes the formation of carbonate from the bicarbonate and will precipitate calcium carbonate (the limescale) out of solution, leaving water that is less hard after it has cooled.
When it has been heated, less carbon dioxide is able to dissolve into the water. Since there is not enough carbon dioxide around, the reaction cannot take place, and therefore the calcium carbonate will not "dissolve" as readily. Instead, the reaction is forced to re-establish equilibrium, and the solid calcium carbonate is formed. Heating water will remove hardness as long as the limescale that precipitates out is removed. After cooling, if enough time passes the water will pick up carbon dioxide from the air and the reaction will again proceed, allowing the calcium carbonate to "redissolve" in the water.
Permanent Hardness
Permanent hardness is hardness (mineral content) that cannot be removed by boiling. When this is the case, it is usually caused by the presence of calcium and magnesium sulphates and/or chlorides in the water, which become more soluble as the temperature rises. Despite the name, the hardness of the water can be easily removed using a water softener, or ion exchange column.
Hard Water Testing
If you are on a municipal water system, and would like to find out the hardness of the water to your home, the water supplier can tell you the hardness level of the water they deliver. If you have a private water supply, you can have the water tested for hardness. There are several different scales used to describe the hardness of water in different contexts.
The precise mixture of minerals dissolved in the water, together with the water's acidity or alkalinity (pH) and temperature will determine the behaviour of the hardness, so single number on a scale does not give a full description. Descriptions of hardness correspond roughly with ranges of mineral concentrations:
Soft: 0 - 20 mg/L as calcium
Moderately soft: 20 - 40 mg/L as calcium
Slightly hard: 40 - 60 mg/L as calcium
Moderately hard: 60 - 80 mg/L as calcium
Hard: 80 - 120 mg/L as calcium
Very Hard: >120 mg/L as calcium
As a guide, 60% of the UK and 85% of the US population live in a hard water area, which can cause stubborn hard water stains on fixtures and fittings. Most water softener companies will be able to supply you with a free water testing kit. Once you've tested your water supply, the hardness of your water will be reported in grains per gallon, milligrams per liter (mg/l) or parts per million (ppm). One grain of hardness equals 17.1 mg/l or ppm of hardness.
About the Author
Patrick Henry BEng (Hons), is a recognised industry expert in removing hard water stains. With an honours degree in Chemical Engineering, he teaches people how to remove stubborn hard water stains and limescale using a step by step guide. He is author of the ebook "Hard Water Stain Removal Secrets Revealed". Complete information on his popular ebook is available from his web site. And while your there, don't forget to subscribe to his FREE report at http://www.hardwaterstainstips.com.
Tags: blog > environment > investing > pick > water > water pick > water pick for teeth > water pick reviews > water pick shower heads > water pick vs floss > water picks
Comments
8 Responses to “Water Pick”
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October 13th, 2010 @ 11:52 am
i like it
November 13th, 2010 @ 5:33 pm
My dentist has this ceiling light cover that makes the light look like a skylight and its beautiful out, and there are three hot air balloons gently floating without a care in the world. The serenity gets me through that damn water pick.
December 4th, 2010 @ 9:09 am
That reminds me of the story of Lloyd Braun (You’re not giving away that water pick!) who was the president of ABC and was essentially fired for greenlighting the pilot episode of LOST before it even aired which at the time was the most expensive pilot ever shot. This was back when ABC was lagging behind all of the other networks and it was LOST and Desperate Housewives that really saved the network and the execs at Disney had him fired for approving such a risky project. You can bet they certainly took credit when it became an instant hit. Another fun fact – the creators of LOST felt so bad for getting Lloyd fired that they let him record the line “Previously on Lost” which plays at the beginning of every episode to stick it to the Disney execs
December 4th, 2010 @ 2:34 pm
good one.
January 10th, 2011 @ 4:25 pm
Lloyd should have known he was faking when he said “hello mr vandalay..” lol
June 15th, 2011 @ 10:57 am
Does anyone know of a nice delicate rose-scented perfume that they can recommend? Trying to find something like that for my cousin and I have no clue where to start.
October 12th, 2011 @ 8:39 am
Read it. It's and intriguing story but I hope you proofread when you're done because you have a lot of grammar mistakes.
December 31st, 2011 @ 8:03 am
FUNN!!!
1. Swat – Gunk
)
2. Horseshoe – OWWY! (Luna stepped on me the other day..with her big stinkin shoes)
3. When you say saddle pad I say where the heck is my package I ordered almost TWO WEEKS AGO! ARGGG! lol, I'm dying for it to come!
4. Show Sheen – AMAZING.
5. Polo Wraps – Annoying
6. Stirrups – dirty
7. Palomino – Gypsy (If I ever get a palomino I'm naming it Gypsy.)
8. Kopertox – Oh No!
9. Ariat – MONEYYYY!
10. Snaffle – yucky. (I have to clean bits today