Carboxymethyl Cellulose (CMC) is a kind of white grain and fibrous
powder which are nontoxic and easy to absorb water.
good water solubility, stickiness, emulsification, diffusibility, enzyme
resistance and thermal stability.
transparency of its solution gets corresponding improvement with the
increase of substitution degree.
water solubility of CMC presents neutral or light alkalescence. It will
precipitate when meeting the metallic ion with more than bivalence.
Production of CMC is carried out by conversion of alkali cellulose
swollen in aqueous NaOH and a surplus of an organic solvent with
monochloroacetic acid or its sodium salt.
from durian rinds was prepared by etherification of cellulose and
monochloroacetic acid. Cellulose was first recovered by chemical pulping
prepared with different pulps/acid ratio (1:0.75, 1:1.0, 1:1.25, and
1:1.5) in alkaline condition, yielding 45-52% of pure CMC.
CMC is used as a thickening agent, stabilizer, suspending
Products such as toothpaste, laxatives, or diet pills contain either MC
or sod. CMC. Other products include ice cream, water-based paints,
detergents and a variety of paper products.
CMC application sectors include production of detergents, oil industry,
pharmaceuticals, textile industry, food industry, etc
annual demand for CMC in Russia and other CIC countries is about 60-65K
mt, while Russia consumes 6K mt/y. Currently, Russia features 13
facilities manufacturing Na-CMC of various grades.
fastest growth of consumption is demonstrated by the food industry
(diary products, ice-cream). The global consumption growth rate within
this sector is 3.5% a year.
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