OBTAINING OF PURIFIED CARBOXYMETHYL CELLULOSE SODIUM BY USING MINERAL ACIDS
Goyibnazarov Ilkhom Shukhrat ogliInstitute of polymer chemistry and physics of Uzbekistan Academy of SciencesKarabaeva Barno SabirovnaInstitute of polymer chemistry and physics of Uzbekistan Academy of SciencesNazarova Zilola MadjitovnaInstitute of polymer chemistry and physics of Uzbekistan Academy of SciencesNishanova Saodat Ravshan kiziInstitute of polymer chemistry and physics of Uzbekistan Academy of SciencesYuldoshov Sherzod AbdullaevichInstitute of polymer chemistry and physics of Uzbekistan Academy of Sciences, PhD, senoir researcherSarimsokov Abdushkur AbdukhalilovichInstitute of polymer chemistry and physics of Uzbekistan Academy of Sciences, Professor
ABI
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This article describes the conditions and advantages of purifying technical Na-CMC using sulfuric acid. In the sulfuric acid purification method, technical Na-CMC is converted to a water-insoluble H-CMC form and the concentration is achieved by washing in water to remove an organic and inorganic salts mixture. H-CMC, which is insoluble in purified water, is converted to Na-CMC water-soluble form using an alcoholic sodium hydroxide solution. By using this method, it was possible to obtain a high-purity product and reduce energy and material consumption
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