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Carbomer 940

  • Appearance: loose white powder, slightly acidic
  • Water content: maximum 2.0%
  • PH value (0.5% aqueous solution): 2.7-3.5
  • Apparent density: 0.21g/cm3
  • Specific gravity: 1.41
  • Ash content (average value): 0.009ppm

    Feature

    Carbomer 940 is a white fluffy powder that is soluble in water, ethanol, and glycerin. It has a characteristic slight odor and is highly hygroscopic, often existing in water in an acidic form.
    It is an important rheology modifier. The neutralized carbomer resin is an excellent gel matrix with important functions such as thickening and suspension.

    Advantages

    Good stability.
    Advanced technology.
    More stringent screening and fine purification process.
    Higher purity.

    Specification-COA

    Test ItemSpecification Result
    AppearanceFluffy white powderFlufly, white powder
    viscosity (2 0r/min,25 °C ,mPa ・ s)0.2% aqueous solution19,000〜35,00023,000
     0.5%NaC10.5%aqueous solution+0.5%NaCl n4,0000〜70,00055,275
    solution clarity (420nm, %)0.2% aqueous solution>8595.2
     0.5% aqueous solution>8596
    Carboxylic acid Content %56.0-68.059
    PH Value2.5 〜3.53.2
    Residual Benzene (%)<0.500.39
    Residual Acrylic Acid (%) <0.25 0.20
    Loss on drying]%) <2.0 PASS
    Packing density(g/100ml) 21.0-27.0 PASS
    Pb+As+Hg+Sb /ppm <10 PASS

    Function and Application

    1. For external gels: such as eye gels, skin gels, etc. in transdermal drug delivery preparations. The common concentration of carbomer 940 is 0.1% to 3.0%, and it is widely used in lotions, creams, and gels.
    2. For oral protein peptide drugs.
    3. For sustained and controlled release preparations.
    4. For other preparations.

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