Antimony Trioxide

Antimony trioxide is a white, odorless crystalline powder primarily used as a flame retardant synergist and opacifying agent. It is obtained either by oxidation of antimony metal or as a by-product from smelting operations. The compound exhibits excellent stability, high refractive index, and strong opacity in glass, ceramics, and plastics. Due to its versatile chemical nature, it is widely applied in polymer formulations, pigments, and fire protection systems..btn-wrap-1{ background-color: #0A8919; color:white !important; font-family: “Inter”, Sans-serif; font-size: 16px; font-weight: 500; line-height: 19px; border-radius: 50px 50px 50px 50px; padding:14px 30px; text-align:center; } .btn-wrap-2{ background-color: #F46C10; color:white !important; font-family: “Inter”, Sans-serif; font-size: 16px; font-weight: 500; line-height: 19px; border-radius: 50px 50px 50px 50px; padding:14px 30px; text-align:center; } a.btn-wrap-1::before, a.btn-wrap-2::before { content: “\f1c1”; font-family: “Font Awesome 5 Free”; font-weight: 900; margin-right: 6px; color: white; } @media(max-width:600px){ .btn-wrap{ display: flex; gap: 20px; flex-direction: column; } } jQuery(document).ready(function($){ $(‘.btn-wrap-1’).on(‘click’, function(e){ e.preventDefault(); elementorProFrontend.modules.popup.showPopup({id: 46374}); }); }); jQuery(document).ready(function($){ $(‘.btn-wrap-2’).on(‘click’, function(e){ e.preventDefault(); elementorProFrontend.modules.popup.showPopup({id: 46380}); }); });

CAS:

1309-64-4

Formula:

Sb₂O₃

Molar Weight

291.52 g/mol

Melting Point

656 °C

Boiling Point

1425 °C

Density

5.2 g/cm³

Forms

Fine white crystalline powder

Odor

Odorless

Key applications

  • Acts as flame retardant synergist in plastics.
  • Used as opacifying agent in ceramics.
  • Applied as fining agent in glass manufacturing.
  • Functions as pigment in paints and coatings.
  • Improves polymer stability under heat stress.

Industries

  • Plastics & Polymers
  • Ceramics & Glass
  • Paints & Coatings
  • Electronics
  • Construction Materials

antimony(III) oxide, diantimony trioxide, antimonous oxide, antimony white
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Antimony Trioxide 99.5%

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Antimony Trioxide 99.8%

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