Antimony Trioxide Supplier in Malaysia
- Also known as
- Antimony Oxide
- Diantimony Trioxide
- ATO
- Sb2O3
Antimony trioxide supplier for flame-retardant compounders, plastics processors, PET producers and glass manufacturers in Malaysia. Shortened to antimony oxide, ATO or Sb2O3 in trade enquiries, it is supplied as a white powder in standard, fine particle and high-purity grades.
Its largest use is as a flame-retardant synergist alongside halogenated retardants, most often brominated systems already chosen by the formulator. It contributes little on its own, so loading is set as a ratio to the halogen source rather than a fixed dose.
Compounders take it into PVC, polyolefins, engineering plastics, rubber, cable compounds and textile back-coating. A separate catalyst grade serves PET resin, fibre and film polycondensation, and other grades are used for glass fining and opacification and as a white pigment. Grade choice turns on assay, average particle size, whiteness and arsenic and lead limits.
Send the required grade, assay, particle size, purity limits, quantity and delivery location with your enquiry. Availability, packing, documentation and delivery timing are confirmed with the quotation.
- CAS number
- 1309-64-4
- Formula
- Sb2O3
- Grade
- standard, fine particle, high-purity, PET catalyst
- Appearance
- white powder
Antimony Trioxide grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Standard grade antimony trioxide | white powder | — | General flame-retardant synergist duty in PVC compounds, cable compounds and rubber, where standard particle size and whiteness are acceptable. | Confirm the required pack format with the quotation. |
| Fine particle grade antimony trioxide | fine white powder | — | Synergist for polyolefins, engineering plastics and textile back-coating, where finer particle size improves dispersion and retains mechanical properties at a given loading. | Confirm the required pack format with the quotation. |
| High-purity antimony trioxide | white powder | — | Applications needing tighter arsenic and lead limits and higher whiteness, including light-coloured compounds and selected glass and ceramic work. | Confirm the required pack format with the quotation. |
| Polyesterification catalyst grade antimony trioxide | white powder | — | Polycondensation catalyst for PET resin, fibre and film manufacture, where catalytic activity and metal impurity limits govern the specification. | Confirm the required pack format with the quotation. |
How to buy antimony trioxide from ChemTrade
Request a quote for antimony trioxide
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | white powder | — |
| Sb2O3 assay | stated for the selected grade on enquiry | — |
| Average particle size | selected by grade; finer grades are chosen for dispersion in polymer compounds | — |
| Whiteness or brightness | stated for the selected grade, and higher for whiteness-critical work | — |
| Key impurity limits | arsenic, lead and iron as required by the specification | — |
| Solubility | practically insoluble in water | — |
Antimony Trioxide applications
Safety and handling
Keep bags and containers closed in a dry, well-ventilated store and avoid generating airborne dust when handling. Follow the safety information supplied for the quoted grade. Supply is subject to applicable requirements.
Common questions about antimony trioxide
Is antimony oxide the same as antimony trioxide?
Yes. Antimony oxide is the shorthand the trade uses for antimony trioxide, Sb2O3, also written diantimony trioxide or ATO. Confirm the assay and particle size on the enquiry so the correct grade is quoted.
Why is antimony trioxide used with brominated flame retardants?
It acts as a synergist rather than a retardant on its own. In the presence of a halogen source it forms antimony halide species in the flame zone and raises flame-retardant efficiency, which lets the formulator meet a specification at a lower total additive loading.
How much antimony trioxide is used in a compound?
Loading is set by the polymer, the halogen content of the retardant and the flammability target, so it is normally expressed as a ratio to the halogen source rather than a fixed figure. Send the formulation basis and the standard being met and the grade can be matched to it.
Which antimony trioxide grade should be selected?
Standard grades suit general PVC, cable and rubber compounds. Finer particle grades disperse better in polyolefins, engineering plastics and textile back-coating, and high-purity grades are chosen where whiteness or arsenic and lead limits are tight. PET manufacture uses a catalyst grade.
What specifications should a buyer provide for antimony trioxide?
State the Sb2O3 assay, average particle size, whiteness or brightness, arsenic, lead and iron limits, and the intended application. Add the pack format preference, quantity and delivery location so the quotation covers the whole requirement.
How should antimony trioxide be stored and handled?
Store the powder in closed bags or containers in a dry, well-ventilated area, and handle it so airborne dust is not generated. Follow the safety information supplied with the quoted grade. Supply is subject to applicable requirements.