CMC Carboxymethylcellulose-Natriumsalz (LV-CMC)

Water treatmentCMC Carboxymethyl cellulose sodiumdissolved in water solution viscosity increased significantly, with thickening, dispersion, emulsification, suspension, such as protective colloid effect, and physical harm, in food, pharmaceuticals, daily chemicals, petroleum, paper, textiles, construction and other areas of production been widely used.CMC is a cellulose ether. Pure strains of white or light yellow fibrous powder or granules, odorless, tasteless, non-toxic, but because of the general industrial products containing sodium hydroxide, sodium oxide and sodium glycolate and other impurities, so yellow, salty taste, often used in CMC insoluble in acid and methanol, ether, acetone, chloroform, stupid and other organic solvents, soluble in water to form a colloidal solution, instead of its degree of water solubility is an important factor, the viscosity is also a great influence on the water-soluble, usually viscosity 250-500 cps at about 0.3 degrees instead of about gradually was alkali soluble, instead of greater than 0.4 shall be water-soluble, with the place of the increased rate of solution corresponding improvement in transparencyCMC has a moisture absorption, CMC's balance of water with increasing humidity, the temperature rise is reducedThe important feature of CMC can form high viscosity colloid solution. Can affect the viscosity of the main factors: concentration, PH, temperature, instead of degrees, and salts.Aluminum sulfate, lead acetate, chloride, iron, ferrous sulfate, copper sulfate, potassium dichromate, metal salts such as tin dichloride, CMC solution can precipitate, in addition to other things can lead acetate dissolved in hydrogen chloride re- , ammonium hydroxide solution.CMC's stability is good, high place of the more stable. However, when the viscosity of CMC solution to save the drop down rate changes with the product, so dubbed after the solution is not appropriate long-term preservation.CMC uses a very broad, non-toxic, non-corrosive, harmless to human body, does not pollute the environment, strong adhesive, no mildew, no protozoa could be used as emulsifier, thickener, stabilizer, sizing agents, as film former, binder and so on.