122 I used a negative logarithm of the hydrogen concentration to create a scale from 0-14, where a pH of less than 7 is an acid, 7 is neutral, and higher than 7 is an alkali," reads an 2009 announcement from Carlsberg, on the 100th anniversary of the breakthrough. So water has a pH of 7, lemon juice 2.4, and bleach 12.5. The pH of beer is between 4.1. and 4.6 .... Before the pH scale, the only parameter to measure acid levels were vague terms such as 'good,' 'bad,' or 'slightly more than last time.' The innumerable useful applications of the pH (short for "potential of Hydrogen") scale range from foods and beverages to cosmetics, pharmaceuticals, and medical diagnostics. Just about every liquid has had its pH measured at some time—including those in our bodies—which, it is very important to note, have more than one pH level. Take the stomach, for instance. It has a pH ranging from 1.35 to 3.5, due to production of hydrocloric acid, which aids in digestion. Blood, on the other hand, must always be slightly alkaline, with a pH of 7.35 to 7.45. The body's buffering systems keep it within that precise range, and excess acid is excreted by the lungs and kidneys. That's part of their job, and they are very, very good at it. The body maintains its pH balance over widely differing diets, and even though what you eat can affect the pH level of your urine, it cannot affect the pH level of your blood. Understand? Good. Now back to
. These electrical devices—which generally cost from $1,000 to almost $6,000 and are often sold by multi-level marketing companies—attach to the kitchen faucet or go under the sink. They strip out contaminants, like other filters, and, besides producing alkaline water for drinking, they also produce acidic water, for cleaning. If you've ever washed windows with a water-and-vinegar mixture, you know acidic water is a good cleansing agent. But the notion that alkaline water can fight or prevent disease? Any chemist will tell you that there is still much to learn about water, but hmmm. Many of the online claims are based on the theory that ionized alkaline water has smaller "clusters" of molecules. According to the Kangen Water website, for instance, "These small clusters make alkaline water Kangen Water more soluble and permeable, allowing you to absorb the important vitamins and nutrients your body needs." And The Alkalizer ("A Wetter Water for a Better Body") maintains that, "The smaller mineral clusters, as measured by the use of a Nuclear Magnetic Resonance device is a more hydrating water than normal tap water. Through electrolysis large tap mineral clusters are reduced from their original size. The smaller cluster size gives the water excellent hydrating properties, high solubility and good permeability."
125 How does an ionizer work? A water ionizer is a small kitchen appliance that separates tap water into two separate streams - one alkaline and one acidic - through a process called electrolysis. Ionizers can either be installed on the counter next to the kitchen sink or under the counter with only a special faucet visible above the counter. Ionization breaks the bond between the oxygen and hydrogen atoms of a water molecule [H2O] and produces alkaline water full of hydroxyl ions [OH-] and and acid water full of hydrogen ions [H+]. What are pH and ORP? The pH scale measures how acidic or alkaline a substance is. It ranges from 0 to 14. A pH of 7 is neutral, a pH less than 7 is acidic, and a pH greater than 7 is
(or basic). ORP, or oxidation reduction potential, measures a substance's ability to oxidize or reduce molecules around it, or in other words, it's potential to steal or donate electrons. pH and ORP are key concepts to understand ionization and the important health benefits of alkaline ionized water. Water, the chemistry of life. Water is essential for life. No living being on planet Earth can survive without it. In fact, about 70 to 90 percent of all organic matter is composed of water. Water not only provides the medium to make life sustaining chemical reactions possible, but water itself is often an important reactant or product of these reactions. In short, the chemistry of life is water chemistry. This section provides some basic concepts that help to understand the chemistry of water and the science behind water ionization at the molecular level.