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Diantimony Trioxide CAS 1309-64-4

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  • Appearance: White powder
  • Assay: 99. 0%min
  • Stock: In stock
  • Sample: Available
  • Zhishang Chemical: Diantimony Trioxide Supplement
1309-64-4

Basic Info of Diantimony Trioxide

What is Diantimony Trioxide?

Many polymer products are flammable, and they will certainly generate a large amount of smoke as well as harmful gases throughout the burning procedure, which seriously threatens the safety of human life. Therefore, it is extremely purposeful to carry out fire resistant treatment on them. Antimony trioxide is a high-efficiency additive flame resistant, which can be utilized separately or in mix with other flame retardants and smoke suppressants.

Antimony trioxide is the earliest flame retardant used. It is typically made use of in mix with various other flame resistants and also smoke suppressants, as well as each element can generate a synergistic impact. In the early stage of combustion, antimony trioxide very first thaws, forms a protective movie on the surface of the material to isolate the air, and also lowers the combustion temperature with an inner endothermic response. Antimony trioxide is evaporated at heat, which thins down the oxygen focus airborne, thereby playing a flame resistant result. In fact, antimony trioxide is a frequently used flame retardant synergist.

Antimony trioxide Sb2O3, additionally referred to as antimony white, is commonly made use of as an auxiliary fire retardant for various artificial products because of its excellent synergistic flame resistant collaborating effect when used in combination with halogen-based fire retardants. It is a halogen-containing polymer, that makes the application of antimony trioxide in flame-retardant polyvinyl chloride plastics special, and the application field is much more usual. Antimony trioxide is mainly utilized as a flame retardant part of synthetic materials. Furthermore, it can additionally be made use of as sophisticated glass making clear representative for picture tubes, fluorescent lights, etc, coverings, pigment ingredients (to improve water resistance, shade longevity as well as fire retardancy), heat-resistant colorants as well as glazes for enamel, ceramics, glass, etc. Fundamental dye mordants, catalysts for petrochemical and also artificial fiber sectors, as well as basic materials for the manufacture of antimony salts.

Diantimony Trioxide Uses

  1. Diantimony trioxide is made use of as high-purity reagent, mordant as well as anti-glare representative, as well as likewise utilized in the preparation of pigments as well as antimony potassium tartrate.
  2. Diantimony trioxide is utilized as white pigment, white glass, enamel, medication, concrete, filler, mordant and fire retardant covering, and so on.
  3. The yearly usage of antimony oxide (III) in the United States and also Europe is about 10000 lots and 25000 bunches respectively. It is mostly used as a flame resistant synergist in mix with halogenated materials. The combination of halide as well as antimony is the essential to the fire resistant impact of polymers, which aids to create nonflammable carbon. This type of flame retardant is commonly utilized in plastic, rubber, textile, chemical fiber, pigment, paint, electronics and other sectors. It is likewise used as a stimulant and also production resources in the chemical market.
  4. Diantimony trioxide is utilized in the enamel market to increase the opacity and also surface area gloss of enamel. The glass market is used as a decolorizing agent in place of arsenous acid.
  5. Antimony (III) oxide is a valuable catalyst for the production of polyethylene terephthalate (pet dog plastic) and also rubber vulcanization.

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The Three Generations of Antimony Trioxide

Production of Antimony Oxide (III)

In 2012, the global output of antimony oxide (III) was 130000 tons, an increase from 112600 tons in 2002. China has the largest output, followed by the United States / Mexico, Europe, Japan and South Africa (2%).

As of 2010, antimony oxide (III) was produced at four locations in the 27 EU countries. It is produced through two routes, the re volatilization of crude antimony oxide (III) and the oxidation of metallic antimony. The oxidation of antimony is dominant in Europe. Several processes for producing crude antimony oxide (III) or metallic antimony from raw materials. The choice of process depends on the composition of ore and other factors. Typical steps include mining, crushing, and grinding of ores, sometimes followed by foam flotation and metal separation using pyrometallurgical processes (smelting or roasting) or in a few cases (e.g., when ores are rich in precious metals) by hydrometallurgical processes. These steps are not carried out in the EU, but near the mining site.

  • Re volatilization of crude antimony oxide (III)
    Step1. the furnace of crude stibnite operating at about 500 to 1000 ° C is oxidized to crude antimony (III) oxide. The reaction is as follows:
    2 Sb 2 S 3 + 9 O 2 → 2 Sb 2 O 3 + 6 SO 2
    Step2. purify crude antimony oxide (III) by sublimation.
  • Oxidation of metallic antimony
    Antimony metal is oxidized into antimony oxide (III) in the furnace. The reaction is exothermic. Antimony oxide (III) is formed by sublimation and recycled in bag filters. The size of the particles formed is controlled by the process conditions and air flow in the furnace. This reaction can be described schematically in the following ways:
    4 Sb + 3 O 2 → 2 Sb 2 O 3

Reference

  1. Antimony trioxide – WikiPedia
  2. 1309-64-4 – PubChem

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