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Sodium hydroxide has been widely used in drinking water as a pH adjusting agent and is also used in food processing. The sodium hydroxide in our products is food-grade and designated as safe for general use in food by the FDA 1. There are other weaker compounds that can buffer pH in formulas, but sodium hydroxide can be used at a very low concentration and be significantly effective.
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The hydroxide ion bonds with the sodium to form sodium hydroxide (NaOH). During this process the water (H 20) is reduced to hydrogen gas (H) and hydroxide ion (OH). It is most commonly manufactured by the electrolysis of brine, a salt (NaCl) solution. Sodium hydroxide is derived from salt water (brine). Sodium hydroxide is derived from salt water (brine). Our Stewardship Model guides us to select ingredients which have been processed in a manner that supports our philosophy of human and environmental health. Hominy is the preparation of dried corn kernels reconstituted by soaking them in a lye solution and pretzels owe their unique crust to being dipped in a lye solution before baking. The traditional Nordic dish of lutefisk literally translates to “lye fish” as it is prepared with dried whitefish and lye (a common name for sodium hydroxide). It is also a key ingredient to preparing many special food items. The pH is adjusted (becomes more basic) as some of the acid is eliminated. When dissolved the hydroxide portion of the compound reacts with acids to form water. In Tom’s products, dilute levels of sodium hydroxide are used to adjust the pH level in some of our oral care products, which is done to improve the overall efficacy of the product. At its highest levels it is very caustic and can be used as a drain cleaner, but at dilute levels it is safe for handling and food preparation. It is a highly versatile ingredient available in a wide range of grades and concentrations. It is also known as lye or caustic soda and used in many industries, for pH adjustment, to purify drinking water, in household cleaners, and in soap-making. Sodium hydroxide (NaOH) is a white, waxy, opaque, odorless crystal consisting of sodium ions and hydroxide ions.