Caustic Soda
Sodium hydroxide (NaOH), commonly known as caustic soda, is usually manufactured by the electrolysis of salt brine with diaphragm, membrane or mercury cell technology. Chlorine and hydrogen are co-produced with the caustic soda in all three cell designs.
Sodium hydroxide is a white crystalline substance that readily absorbs carbon dioxide and moisture from the air. It is very soluble in water, alcohol and glycerin. Also known as lye or sodium hydrate, it is available commercially as aqueous solutions of various concentrations and in various solid forms. Both liquid and solid forms can vary in purity.
Caustic soda has a wide variety of applications in many industries, including pulp and paper, aluminum, soaps and detergents, textiles, petrochemicals and chemical processing.
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Caustic Potash
Potassium hydroxide (KOH), commonly known as caustic potash, is the largest-volume potassium chemical for non-fertilizer use. OxyChem produces it by the electrolysis of potassium chloride with membrane cell technology. Co-products are chlorine and hydrogen.
A strong alkali, caustic potash is available in both liquid and dry forms. It has applications in fertilizers, batteries, soaps and detergents, specialty glasses and other industrial operations. It also serves as a chemical intermediate for dyes, pharmaceuticals and photographic chemicals.
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Silicates
OxyChem produces a variety of sodium silicate products. Sodium silicate is the generic name for a series of compounds derived from soluble sodium silicate glasses. They are aqueous liquids containing sodium oxide (Na2O) and silicon dioxide (SiO2) in various ratios. By varying the proportion of SiO2 to Na2O and the solids content, one can obtain solutions with differing properties that have many diversified industrial applications. In addition to its wide range of commercial liquid sodium silicate products, OxyChem also produces sodium metasilicates in both granular anhydrous and pentahydrate forms.
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