Antimony glycolate

Item Standard
G20 G10
Sb(%) 56.0-58.0 56.0-58.0
Se(%) ≤ 0.0050 0.0015
Pb(%)≤ 0.0050 0.0010
Fe(%)≤ 0.0010 0.0010
Loss on drying(%)≤ 1.0 0.6
L ≥ 90.0 90.0
B ≤ 4.0 3
20 mesh sieve rate(%)≥ 98.0 98.0
Transmittance of Solubility(in  in glycol at 20°C) 97.0 97.0
Antimony glycolate is the most novel catalyst used in the polycondensation of polyester. It has the following advantages compared with the catalysts of antimony trioxide and lanthanum acetate.
  1. It has high solubility in ethylene glycol and good dispersibility.
  2. High antimony content, good activity, can increase the production capacity of the device.
  3. The catalyst itself does not bring in new impurities, which can improve the intrinsic quality of the chips and improve the spinnability of the post-processing.
Chemical formula:Sb2(OCH2CH2O)3
Molecular weight:423.66
CAS No.:29736-75-2
Appearance: white powder
Melting point: >100°C
Lightning: >110°C
Chemical properties: non-toxic and tasteless, decomposes in the presence of air.


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