• Stearic acid
  • Stearic acid
  • Stearic acid
  • Stearic acid
  • Stearic acid
  • Stearic acid
Stearic acid
Stearic acid
Stearic acid
Stearic acid
Stearic acid
Stearic acid
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Stearic acid

Stearates‌ are metal salts derived from stearic acid (octadecanoic acid, C₁₈H₃₆O₂), formed through reactions with metal compounds such as calcium, zinc, magnesium, or aluminum.  They exhibit dual properties of fatty acids and metal salts.

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  • Description
  • Key characteristics


    Physical State‌: Fine white powders or granular solids.
    Key Properties‌: Lubricity, thermal stability, hydrophobicity, and emulsifying capacity.
    Safety‌: Generally non-toxic, compliant with food-grade (e.g., GB 9685-2016) and pharmaceutical standards (USP/EP).

    Main product series and technical parameters‌


    1.  Calcium Stearate‌
    Formula‌: Ca(C₁₇H₃₅COO)₂
    Specs‌: Calcium content 6.4–7.4%, melting point 150–160°C.
    Applications‌:
    Plastics‌: Internal/external lubricant for PVC pipes and films, reducing melt viscosity.
    Food Packaging‌: Anti-blocking agent in PE cling film (0.8–1.2% dosage).
    Pharmaceuticals‌: Tablet lubricant enhancing powder flow.  ‌
    2.  Zinc Stearate‌
    Formula‌: Zn(C₁₇H₃₅COO)₂
    Specs‌: Zinc content 10.3–11.3%, melting point 118–128°C.
    Applications‌:
    Rubber‌: Vulcanization activator for seals and conveyor belts.
    Cosmetics‌: Mattifying agent in foundations and powders.
    Coatings‌: Prevents pigment settling in paints.  ‌
    3.  Magnesium Stearate‌
    Formula‌: Mg(C₁₇H₃₅COO)₂
    Specs‌: Magnesium content 4–5%, insoluble in water.
    Applications‌:
    Pharma‌: Primary tablet/capsule lubricant (e.g., in drug formulations).
    Food‌: Anti-caking agent in powdered products.  ‌

    Core application areas‌


    1.  Plastic and rubber industry‌
    Function‌: Acts as stabilizer, mold-release agent, and flow enhancer.
    Example: Calcium stearate in PVC window profiles reduces die buildup.
    Innovation: Zinc stearate in ABS resin boosts extrusion speed by 15%.  ‌
    2.  Medicine and food‌
    Tableting‌: Magnesium stearate ensures uniform drug dispersion.
    Food Safety‌: Calcium stearate prevents adhesion in baking molds.  ‌
    3.  Cosmetics‌
    Emulsification‌: Stearates stabilize creams (e.g., cold creams) via water-in-oil systems.
    Texture Enhancement‌: Zinc stearate provides silky feel in compact powders.  ‌
    Package: 25kg/bag

Stearic acid

Stearates‌ are metal salts derived from stearic acid (octadecanoic acid, C₁₈H₃₆O₂), formed through reactions with metal compounds such as calcium, zinc, magnesium, or aluminum.  They exhibit dual properties of fatty acids and metal salts.

Products Category

Tag list

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