Carboxymethyl cellulose
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Description
Carboxymethylcellulose (KMTs, tsellyulozoglikolevy acid, [C6H7O2(OH) 3-x(ОСН2СООН) x] n, where x = 0,08-1,5) - a derivative of cellulose in which the karboksilmetilny group (-CH2-COOH) connects hydroxyl groups of glucosic monomers. Is weak acid, it is colourless. It is for the first time synthesized and patented by [1] German chemist Jansen in 1918. Appearance: light-beige crystal powder. rn (1% solution in water): 7,7. In the chemical, food and medical industry it is most often used as sodium salt - sodium-carboxymethyl cellulose (Na-carboxymethylcellulose) which water solutions are viscous, possess pseudo-plasticity, and at some grades - a tiksotropiya. Na-carboxymethylcellulose is applied as softener, a thickener, a resorbent. As the zagushchayushchy agent is a part of toothpaste, foodstuff, cosmetics. It is applied in production of glue (for example, glue bustilat). Clay Na-carboxymethylcellulose suspensions are used when drilling. Is a part of detergents and fillers for cold accumulators. High-quality definition: IK-spektrofotometriya.
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Carboxymethyl cellulose
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