Antimony Trioxide

Antimony trioxide (Sb2O3, ATO) is a fine white inorganic powder used above all as a flame-retardant synergist. Combined with halogenated (brominated or chlorinated) flame retardants, it dramatically boosts their effectiveness, making it essential to fire-safe plastics, textiles, rubber, paints and electronics. It is also a key polycondensation catalyst in PET (polyester) manufacture, and a fining agent and opacifier in glass and ceramics. Its dominant role is the halogen-antimony synergy: on its own ATO is a weak flame retardant, but with a halogen source it forms antimony halides in the flame that interrupt combustion, allowing much lower total additive loadings. Grade selection centres on particle size (finer grades disperse better and are more effective) and purity. Industrial buyers sourcing Antimony Trioxide in bulk also track antimony trioxide pricing closely, since it feeds directly into their downstream costs - which is why working with an established antimony trioxide supplier and distributor like Elchemy matters.

Manufacturing Process of Antimony Trioxide

Antimony trioxide is produced either by re-volatilising antimony metal - melting and oxidising it in a controlled-air furnace so it sublimes as Sb2O3 vapour that is condensed and collected - or directly by roasting stibnite (antimony sulphide) ore. The condensed oxide is milled and classified to the target particle size. Particle size and purity, controlled at the furnace and milling stages, define the grade. As a quality-focused antimony trioxide manufacturer and sourcing partner, Elchemy tests every shipment for Sb2O3 assay, particle size, arsenic and lead content before dispatch, with a Certificate of Analysis travelling alongside each order.

Antimony Trioxide Price & Antimony trioxide manufacturers: Bulk Pricing Guide

If you are comparing antimony trioxide manufacturers for bulk procurement, Elchemy provides quotes based on your exact requirements. Share your volume, grade, destination and packaging on the quote form and our team reverts with a detailed offer within 24 to 48 hours. Pricing is quoted rather than published because the cost is driven by the price of antimony metal/ore, a supply-constrained minor metal, so ATO price is volatile and supply-driven, not a fixed list. This is why a live quote from an antimony trioxide supplier is always more accurate than any headline figure. Beyond that, several factors shape the final antimony trioxide price: grade, committed volume, origin country, packaging format, freight, Incoterm (FOB, CIF or DDP) and import duty (HTS 2825.80 for US-bound shipments). For an approximate read on where the market sits, procurement teams often reference antimony metal price benchmarks. Trade publications also report the antimony trioxide price per kg as a unit-level benchmark, useful for spotting short-term regional shifts. At bulk procurement scale, the antimony trioxide price per ton (or per MT) is the most relevant commercial unit, since contracts are negotiated at that level. For an exact rate, none of these replaces a direct quote. Your final price depends on contract structure, destination, volume and timing - so a quote from our team is always the most accurate number for your procurement.

Packaging & Logistics for Bulk Antimony Trioxide

Antimony Trioxide ships in standard export packaging - bags, drums, IBCs or bulk as the material requires - with both metric and imperial weights, supplied to your specification. A typical 20' container holds a full commercial load depending on packaging. For US, UK and UAE buyers, Elchemy arranges compliant freight and customs documentation, offering EXW, FOB, CIF and DDP terms. Transit times and stock position are confirmed at quotation, and samples are dispatched within 24 to 48 hours. Store per the conditions on the TDS. As a global antimony trioxide distributor, Elchemy ships to 40+ countries with the documentation each destination market requires.

Why Choose Elchemy as a Trusted Antimony Trioxide Supplier

Elchemy makes sourcing Antimony Trioxide straightforward for industrial buyers. Every order ships with a Certificate of Analysis, TDS and GHS-aligned SDS as standard, across the grades listed above. Because we source across multiple origins, we quote the best landed cost for your destination rather than a single antimony trioxide manufacturer's list price. Partner plants operate to recognised quality standards (ISO 9001, plus food/pharma certifications where relevant), with Halal and Kosher documentation on request. From the USA and UK to the UAE and beyond, Elchemy serves as a single antimony trioxide supplier, manufacturer and distributor relationship - with samples before bulk and pricing tailored to your volume and contract terms.

Safety & Handling

EU classification: Carcinogen Category 2 (H351) by inhalation; EU SVHC. Not generally DOT-restricted as a solid; manage occupational dust per the SDS. Antimony trioxide requires careful handling. It is classified in the EU as a suspected carcinogen (Category 2) by inhalation and is an EU REACH Substance of Very High Concern; inhalation of the fine dust over time is the principal occupational hazard, so effective dust control, local exhaust ventilation and respiratory protection are essential. It can also irritate the eyes and skin. It is not acutely highly toxic by ingestion at handling levels, and is used (with migration limits) as a PET catalyst in food-contact plastic. Manage dust exposure, and confirm SVHC/authorisation status for the destination market. The full 16-section GHS-aligned SDS is available alongside every Antimony Trioxide order.