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    Sodium carboxymethyl cellulose

    Technical sodium carboxymethyl cellulose (CMC) is a sodium salt of cellulose glycolic acid, obtained from reaction of alkali cellulose and sodium monochloracetate or monochloracetic acid.

    Important
    properties

    Water retention

    Thickening
    of water solutions

    Possibility
    to use as an
    anticrystallizing
    agent

    Modification
    of rheological
    properties

    Ability to
    absorb on
    the surface
    of minerals

    Fields of application

    Used in detergents as a mud resorbent

    Kamcel 300 (Extra)
    Kamcel 500 (Extra)

    Used as a sizing additive to the stock or in surface sizing to improve paper properties

    Kamcel 300 (Standard)

    Technical Properties

    Properties Kamcel
    300
    Kamcel
    400
    Kamcel
    500
    Kamcel
    600
    Kamcel
    700
    Kamcel
    800
    Kamcel
    1000
    Appearance Fine-grained free-flowing material of white to beige color
    Water content, %, max/td>

    10 10 10 10 10 10 10
    Degree of substitution
    in carboxymethyl
    groups, in limits
    60-75 75-90 60-90 75-90 75-90 75-90 75-90
    Active content of
    the dry-weight
    technical product, %:
    for «Standard» grade, min
    for «Extra», min
    50 50 50 55 55 55 55
    65 65 65 65 65 65 65
    Degree of polymerization min 450 350-500 500-600 600-700 700-800 800-950 max 950
    Brookfield viscosity
    of 2,0% solution
    (20 С), mPa*s
    20 – 1500
    Water solubility as
    absolute-dry technical
    product, %, min
    97 97 97 97 97 97 97
    pH-content of 2% aqueous
    CMC solution at t 20 С
    6,5-11 6,5-11 6,5-11 6,5-11 6,5-11 6,5-11 6,5-11

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