PRODUCT
Description
1. Chemical properties and classification
Antimony(III) Oxide， The chemical formula is Sb ₂ O3, with a molecular weight of 291.52, and it is an inorganic compound belonging to amphoteric oxide. In nature, it exists in two crystal forms: the mineral “antimonite” and “fangantimonite”. As one of the most important antimony compounds, it is the core product of the antimony industry and also the most widely used inorganic flame retardant in the world.
2. Physical characteristics and morphology
At room temperature, Antimony(III) Oxide appears as white cubic crystals or white powder. Its melting point is 656 ° C, boiling point is about 1425 ° C, and density is about 5.2 g/cm ³. This compound is almost insoluble in water, but soluble in hydrochloric acid, tartaric acid, and strong alkaline solutions; Slightly soluble in dilute nitric acid and dilute sulfuric acid. It is worth noting that it has good covering power and has been used as a white pigment in history. When heated, its color changes from white to yellow, and it returns to white after cooling.
3. Industry positioning and security background
Antimony(III) Oxide is an indispensable “synergist” in the flame retardant industry. When used alone, its flame retardant effect is limited, but when combined with halogen flame retardants, it can produce significant synergistic effects, greatly improving flame retardant efficiency.
Antimony(III) Oxide， The chemical formula is Sb ₂ O3, with a molecular weight of 291.52, and it is an inorganic compound belonging to amphoteric oxide. In nature, it exists in two crystal forms: the mineral “antimonite” and “fangantimonite”. As one of the most important antimony compounds, it is the core product of the antimony industry and also the most widely used inorganic flame retardant in the world.
2. Physical characteristics and morphology
At room temperature, Antimony(III) Oxide appears as white cubic crystals or white powder. Its melting point is 656 ° C, boiling point is about 1425 ° C, and density is about 5.2 g/cm ³. This compound is almost insoluble in water, but soluble in hydrochloric acid, tartaric acid, and strong alkaline solutions; Slightly soluble in dilute nitric acid and dilute sulfuric acid. It is worth noting that it has good covering power and has been used as a white pigment in history. When heated, its color changes from white to yellow, and it returns to white after cooling.
3. Industry positioning and security background
Antimony(III) Oxide is an indispensable “synergist” in the flame retardant industry. When used alone, its flame retardant effect is limited, but when combined with halogen flame retardants, it can produce significant synergistic effects, greatly improving flame retardant efficiency.
Product Images & Packaging
Antimony(III) Oxide Parameters
| Magnesium hydroxide Chemical Properties |
| Melting point | 350 °C (lit.) |
| density | 2,36 g/cm3 |
| storage temp. | Room Temperature |
| solubility | 5 M HCl: 0.1 M, clear, yellow |
| form | powder |
| color | White |
| Specific Gravity | 2.36 |
| Odor | Odorless |
| PH Range | 9.5 – 10.5 |
| PH | 10.4(1 mM solution);10.4(10 mM solution);10.4(100 mM solution) |
| Water Solubility | 0.9 mg/100 mL (18 ºC) |
| Sensitive | Air Sensitive |
| λmax | λ: 260 nm Amax: 0.030 λ: 280 nm Amax: 0.025 |
| Merck | 14,5670 |
The application of Antimony(III) Oxide
The main uses of Antimony(III) Oxide
Antimony(III) Oxide plays a core role in the plastic industry, rubber industry, and special functional materials due to its excellent flame retardant synergy and optical properties that change color under specific conditions.
Flame retardant synergist field
This is the application area with the highest usage and value of Antimony(III) Oxide. When used in combination with halogen flame retardants, the two can undergo a chemical reaction at high temperatures, generating high-density antimony trihalide gas. This gas can not only dilute the oxygen concentration in the flame zone, but also cover the material surface to form an isolation layer, playing a dual role in insulation and oxygen isolation.
This synergistic mechanism makes it an indispensable flame retardant component in engineering plastics, polyolefins, PVC and polyurethane foam. Common flame-retardant terminal products include automotive instrument panels, electronic product casings, wire and cable insulation layers, and plastic parts for household appliances. Due to its classification as a Group 2B carcinogen by the International Agency for Research on Cancer, specific warning labels are usually placed on the surface of products containing this substance.
Rubber and Textile Industry
When Antimony(III) Oxide is used in combination with chlorosulfonated polyethylene or chloroprene rubber in rubber products for cables and conveyor belts, it can achieve self extinguishing without adding halogen flame retardants. In addition, it is also used as a glass clarifying agent and decolorizing agent in the enamel and ceramic industries, which can effectively eliminate yellow or green impurities and improve the whiteness and transparency of the glaze surface. In the formulation of flame retardant coatings in the textile industry, it is a key raw material for achieving UL 94 V-0 fire protection standards.
Special functional materials and pigments
As a famous white pigment in history, Antimony(III) Oxide has a certain degree of covering power, but it is less commonly used alone due to its inferior weather resistance compared to titanium dioxide. But due to its unique thermochromic properties, it is used to manufacture reversible color changing inks and thermosensitive materials. In the metallurgical industry, it is an intermediate for further production of fine chemicals such as high-purity metal antimony, sodium antimonate, and potassium pyroantimonate.
The use of Antimony(III) Oxide deeply reflects the modern materials science’s pursuit of a balance between safety and performance. It is not only an “invisible guardian” lurking in the charger shell and wire sheath to prevent the spread of fire in case of fire, but also a “temperature control switch” that manufactures color changing ink and endows materials with intelligent response. At the same time, it is also a “decolorizing magician” that improves the smoothness of enamel products.
Antimony(III) Oxide 's Procurement Guide
Procurement Guidelines
1. Sample Policy
We can provide a 2-3g free trial package (shipping fee required)
2. Batch procurement
Packaging: 25kg/bag; 220kg/barrel; Special packaging according to your needs
MOQ：1kg
3. Customized services
Concentration customization (90% -99%)
Paeonol’s outsourcing services
FAQ
Our flame retardant finishing solutions are perfect for protecting textiles such as curtains, fabrics and protective fabrics from flame. In addition, they can be used for flameproofing plastic pipes, rubber products, fireproof boards and industrial coatings in an array of applications scenarios.
In ceramic glaze production, it can whiten opalescence, brighten gloss surface gloss levels and make finished products more delicate in texture; In glass production it may serve as a clarifying/decolorizing agent to remove impurities, improve transparency and maximize product quality.
What are the important considerations during the storage and transportation of Antimony (III) Oxide?
Daily storage only needs to take place in a clean, dry and ventilated warehouse that is free from damp, rainy or high temperature environments and heavy pressure stacking; since the product is an industrial raw material it should be easy and compliant for exportation.
Escrow and T/T in advance are highly recommended. We can accept Western Union, Money Gram and Paypal as well.
Related References
Manufacturer of Antimony(III) Oxide
Achievements
Advantage
Service
FAQ
Advice on Shipping
Achievements
Zhishang Bio is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang Bio will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Antimony(III) Oxide manufacturer, Zhi shang Bio has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Advantage
Zhishang Bio is a professional enterprise engaged in the research and development, production, and sales of chemical raw materials. It has a strong supply chain system and strict quality control standards to ensure the provision of high-quality products with high purity and stability to customers.
Zhishang Bio’s core strength is its independent research and design capabilities. It has advanced production equipment, testing laboratories and can customize chemical raw materials to meet the market demands. This includes pharmaceuticals, electronic, coatings and agricultural applications.
Zhishang Bio’s supply chain management is based on long-term relationships with domestic and international suppliers of high quality to guarantee a stable supply, optimize logistic systems, and achieve efficient distribution. This helps reduce the cost of customer purchases.
We adhere to international environmental standards and we also adhere to the concept that environmental protection and safety production are important. All production processes must comply with these standards in order to guarantee that our products will be green and sustainable.
With a professional technical team and comprehensive after-sales service, Zhishang Bio can provide customers with precise technical support, solve application problems, and help customers enhance product competitiveness.
We are always customer-oriented and committed to becoming a trusted chemical raw material partner.
Service
Zhishang Biography is dedicated to using clients extensive and expert service, including chemical raw material. The customers will certainly receive hassle-free, efficient and one-stop options.
1. Custom-made Supply Solutions
Zhishang Bio provides tailored services for clients in the chemical basic material sector, including special bit dimension, solvent residue control, stability optimizations and more. Clients can personalize their services to satisfy details requirements in industries such as drugs, electronic devices, and finishings.
2. Strict quality assurance
Zhishang Bio utilizes advanced screening equipment and stringent quality examination procedures, in addition to various other files, to guarantee that every batch of products is certified with international criteria such ISO GMP, REACH, and so on. Customers are also given with full quality records and conformity documents.
The supply chain is secure
Zhishang Bio has actually established lasting calculated collaborations with worldwide makers of top notch raw materials to make certain a secure supply, maximize the storage facility and logistics system, and assistance both small-scale examinations and large orders. It adjusted to the changing requirements of clients by responding flexibly to these changes.
4. Technical support
Zhishang Bio’s technical group can offer suggestions on product applications, formula optimization and analysis of industry patterns to aid clients fix technological troubles during production and boost item efficiency.
5. Efficient after-sales service
Zhishang Bio provides complete monitoring, reacts to client requests and delivers promptly. This will certainly make certain customer complete satisfaction.
Zhishang Biography intends to help consumers expand their service by providing the very best solutions and chemical resources.
FAQ
DO YOU ACCEPT SAMPLE ORDER?
We will make samples before mass production. After the samples are approved by the department and users, we will start mass production. During the production process, we will carry out 100% inspection, and then carry out random inspection before packaging.
WHAT’S YOUR MOQ?
Our MOQ is 1kg. But usually we can also accept a smaller quantity, such as 100g, if you need it, provided that the sample fee is 100% paid.
IS THERE A DISCOUNT?
Different quantity has different discount.
HOW TO CONFIRM WHETHER THE PRODUCT QUALITY MEETS OUR NEEDS BEFORE PLACING AN ORDER?
You can consult us to get free samples of some products, you only need to pay the freight or arrange express delivery to us and get the samples. You can send us the product specifications and requirements you need, and we will manufacture products according to your requirements.
DO YOU SUPPLY PRODUCT REPORT?
Yes. We’ll give you product analysis report before shipping.
LEARN MORE ABOUT US
Shandong Look Chemical
Advice on Shipping
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
Zhishang Bio company in China that exports chemicals, Cosmetic raw materials, and Intermediates for over 70 countries now.
And a range of 50,000 products with the best quality and competitive price to meet your different purchasing needs.
The company integrates research and development, production, and trade, with a modern production base, advanced testing equipment, and an experienced technical team to ensure that products reach industry-leading levels in purity, stability, and environmental friendliness.
