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This series features high-efficiency antimony glycolate for polyesters, an organo-antimony catalyst specially developed for PET polycondensation reactions. Compared with conventional antimony trioxide or antimony acetate, antimony glycolate for polyesters delivers the following procurement-relevant advantages: - High activity: Superior catalytic efficiency shortens polycondensation cycles and improves production-line capacity utilisation. - Favourable solubility: Homogeneous dispersion within ethylene glycol reduces filter clogging and side-reaction formation. - Low residual impurities: Tight metallic-impurity control improves colour and optical performance (b-value) of polyester chips. -Batch consistency: Rigorous synthetic-process control guarantees uniform catalytic activity across production lots. Key parameters for qualification include antimony content (wt%), dissolution rate, maximum allowable metallic-impurity levels and hermetic packaging for moisture protection. Drawing on customer polymerization-process parameters (temperature, pressure, formulation), we provide technical-parameter comparisons and practical application references. This facilitates rapid evaluation and validation during supplier transitions or formulation adjustments.
  • Ethylene Glycol Antimony

    Ethylene Glycol Antimony

    Ethylene glycol antimony is a new, high‑efficiency catalyst for polyester polycondensation. Compared with traditional catalysts (antimony trioxide, antimony acetate), it offers distinct core advantages:
    Superior solubility and dispersibility
    It exhibits significantly higher solubility in ethylene glycol and disperses uniformly. This effectively prevents catalyst agglomeration, ensures a stable reaction system, and minimizes dead zones.
    Higher catalytic activity
    With a high antimony content and strong catalytic activity, it notably accelerates polyester polycondensation, shortens reaction cycles, increases plant capacity and productivity, and reduces production costs.
    Enhanced product quality
    High purity prevents introduction of additional impurities into the reaction system. It improves the intrinsic quality of polyester chips, enhances spinnability, streamlines downstream spinning processes, and delivers fibers with superior strength and toughness.
    Developed and customized by UrbanMines, ethylene glycol antimony features stable physicochemical properties, high catalytic efficiency, and significant quality improvement. It has become the preferred catalyst for polyester process upgrades and is suitable for all polyester polycondensation applications.

  • Cobalt(II) Hydroxide or Cobaltous Hydroxide 99.9% (metals basis)

    Cobalt(II) Hydroxide or Cobaltous Hydroxide 99.9% (metals basis)

    Cobalt(II) Hydroxide or Cobaltous Hydroxide is a highly water insoluble crystalline Cobalt source. It is a inorganic compound with the formula Co(OH)2, consisting of divalent cobalt cations Co2+and hydroxide anions HO−. Cobaltous hydroxide appears as rose-red powder, is soluble in acids and ammonium salt solutions, insoluble in water and alkalies.

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