Antimony trioxide Sb2O3 99.5％

Antimony trioxide is an inorganic compound with the chemical formula Sb2O3. The natural product is called antimony white, commonly known as antimony white. It is a white crystalline powder with a melting point of 655°C and a boiling point of 1550°C. It is soluble in concentrated hydrochloric acid, sulfuric acid, alkaline solution and hot tartaric acid solution, slightly soluble in water, dilute nitric acid and dilute sulfuric acid. It is mainly used as a pigment, flame retardant, mordant, catalyst, and can also be used to synthesize antimony salts.

Antimony trioxide

Chinese name: Antimony trioxide

English name: Antimony (III) oxide

Alias: Antimony white, antimony flower, antimony oxide, antimony anhydride

Chemical formula: Sb2O3

Molecular weight: 291.50

CAS number: 1309-64-4

Appearance: White or gray powder, turns yellow after heating, and turns white or gray again after cooling

Melting point: 656℃

Density: 5.2

Boiling point: 1456℃

Solubility: Soluble in hydrochloric acid, potassium hydroxide, sodium sulfide, tartaric acid, concentrated sulfuric acid, concentrated nitric acid, insoluble in water, alcohol, dilute sulfuric acid

Product use:

1. As the earliest flame retardant, it is suitable for epoxy resin, polyurethane, polystyrene, polyvinyl chloride, polyester, etc. When used alone, the flame retardant effect is low, and it often has a good synergistic effect when used with other flame retardants and smoke suppressants, and the flame retardant effect is significantly improved.

2. Used as a catalyst in petrochemical and synthetic fiber industries.

3. Used as a decolorizing agent to replace arsenous acid in the glass industry.

4. As a good covering agent, used as a white paint pigment.

5. Used to make mordants and opacifiers, and is also a raw material for synthesizing antimony salts.

6. Used as an additive in the enamel industry to increase the opacity and surface gloss of enamel.

Bag-packed
Plastic woven bags: Generally, plastic woven bags with plastic inside and woven outside are used for packaging. This type of packaging has good strength and moisture resistance. The plastic film inside can effectively prevent antimony trioxide from getting wet, and the woven bag outside provides sufficient wear resistance and tear resistance, which is convenient for handling and storage. The weight of each bag is usually 25 kg or 50 kg, which is convenient for loading and unloading and use.
Paper bags: Some antimony trioxide products are packaged in multi-layer paper bags, and there will also be a moisture-proof layer inside the paper bags, such as plastic coating or lining with plastic film, to ensure the dryness of the product. Paper bag packaging is relatively environmentally friendly and is suitable for some occasions that require environmentally friendly packaging. The weight specifications are mostly 25 kg or 50 kg.

Barrel-packed
Plastic barrels: Plastic barrel packaging has good sealing performance and can effectively prevent product leakage and moisture. For some antimony trioxide products that require more stringent moisture-proof and sealing requirements, especially small batches and high-purity products, plastic barrels are often used for packaging. Common plastic barrels have capacities of 25 liters, 50 liters, etc., which can be selected according to actual needs.
Iron barrels: Iron barrel packaging has high strength and stability, and is suitable for packaging large amounts of antimony trioxide or for storage and transportation in harsh environments. The inside of the iron barrel is usually treated with anti-corrosion to prevent antimony trioxide from reacting with the iron barrel. There are generally different capacity specifications such as 180 liters and 200 liters.

Container bags
For large-scale transportation and storage of antimony trioxide, container bags are used for packaging. Container bags are large flexible packaging containers, usually made of high-strength polypropylene or polyethylene fibers, with large capacity and easy loading and unloading. The capacity of container bags is generally between 1 ton and 3 tons, and can be directly loaded and unloaded by forklifts or cranes, which greatly improves logistics efficiency and is suitable for large-scale industrial applications and long-distance transportation.