Zinc Borate

Zinc Borate

    Specifications
    HS Code 151036
    Chemical Formula 2ZnO·3B2O3·3.5H2O
    Appearance White crystalline powder
    Density 2.67 g/cm³
    Solubility In Water Insoluble
    Melting Point 980 °C
    Ph Value Aqueous Suspension 6.5 - 7.5
    Particle Size Fine, typically in the range of a few microns
    Thermal Stability Good, can withstand high temperatures without decomposition
    Flame Retardant Efficiency High, effective in reducing flammability of materials
    Antimicrobial Property Exhibits some antimicrobial activity

    As an accredited Zinc Borate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Zinc Borate packaged in 25 - kg bags for convenient handling and storage.
    Storage Zinc borate should be stored in a cool, dry place, away from direct sunlight and heat sources. Keep it in a well - sealed container to prevent moisture absorption, which could affect its chemical properties. Avoid storing near reactive substances. A dedicated storage area in a warehouse with proper ventilation is ideal to ensure the long - term stability of zinc borate.
    Shipping Zinc borate is shipped in sealed containers to prevent moisture and contamination. Depending on quantity, it may be in bags for smaller amounts or bulk in larger shipments, following all relevant chemical transportation regulations.
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    Zinc Borate Zinc Borate
    General Information
    Historical Development
    Zinc and boron miners are rare in ancient mining and metallurgy. Years passed, and by the end of the 19th century, Western chemists combined zinc and boron to produce a new compound called zinc borate. After it was completed, it gradually became more and more important in various processes, because it can be flame retardant, high temperature resistant, and has antibacterial effects. At the beginning of the 20th century, European and American countries took the lead in using zinc and boron in plastics and coatings, thinking that fire protection was essential. By the end of the 20th century, science was advancing, and new methods were used to purify it, and its quality was getting better and better. Zinc and boron mines then sold well in five continents, and were widely used in electronics, ceramics, rubber and other industries. Today's polymer materials and architectural coatings do not rely on this. The use of zinc and boron is increasingly apparent.
    Product Overview
    Zinc and boron is a new type of inorganic flame retardant material with white powder properties, fine texture and no odor. Its chemical properties are stable, insoluble in water, and have excellent heat resistance and corrosion resistance. It is commonly used as a flame retardant addition to plastics, rubber, coatings and other products, and can also be combined with aluminum, magnesium and other flame retardants for synergistic effect. Zinc and boron decompose at high temperature to generate water and boric acid, which can absorb heat and cool down, inhibit flame spread, and form a glassy protective film on the surface of the material, isolating oxygen and effectively blocking the continuation of combustion. It has the ability to suppress smoke, resist arc and resist mold. It is widely used in electronics, cables and building materials industries. It has been tested, is safe and non-toxic, and is environmentally friendly. It is highly respected by the industry.
    Physical & Chemical Properties
    Zinc boric acid is a white powder, slightly shiny, odorless and tasteless. Its stability, insoluble in water and alcohol, but in strong acid or strong alkali can be slowly released decomposition. Its density is about 2.65 grams per cubic centimeter, the melting point is more than 900 degrees Celsius, and it is not easy to decompose at high temperature. When heated to more than about 400 degrees Celsius, the crystalline water is slowly released, and then it shows the work of smoke and flame retardant. Its chemical properties are mild, and it does not change automatically in room temperature and humidity. It is compatible with oxidants, reducing agents and various resins. It is non-flammable in case of fire, and can inhibit smoke and dripping during combustion. It is widely used in rubber, plastics, coatings and other products. It is resistant to acid and alkali corrosion and can improve the aging resistance and thermal stability of materials.
    Technical Specifications & Labeling
    Zinc boric acid, white powder is also stable and tasteless, chemical formula is ZnB 2O O · xH 2O O, each type varies according to the degree of hydration, common x is 3, 4, 6. The particle size is fine, the average particle size can reach 1-10 microns, the true density is about 2.8-3 grams per cubic centimeter. The melting point is about 980 degrees Celsius, and the crystalline water is gradually lost in case of high temperature. It is insoluble in water at room temperature, slightly soluble in strong acids. Its purity is high, the content of sulfur, iron and heavy metals is very small, and the impurities are extremely thin. The packaging is mostly lined with plastic bags and woven bags, with a net weight of 25 kg or customized on demand. It is suitable for flame retardant materials, plastics, rubber, coatings and other fields. Storage should be cool and dry, moisture-proof and pollution-proof. The label clearly indicates the product name, chemical composition, batch, production date and manufacturer number for inspection.
    Preparation Method
    To prepare zinc boric acid, take zinc oxide and borax as raw materials. Pre-dissolve borax in quantitative water, heat up and stir, slowly add zinc oxide, and maintain the temperature at 80 to 90 degrees. During this time, zinc ions interact with borate ions and gradually form suspended crystals. After the reaction, a white precipitate, that is, zinc boric acid, is precipitated. Once cooled and filtered, the impurities are washed with water, and the finished product is dried. If catalysis is used, a trace acid is often used as a guide to help the two react rapidly. The acidic environment promotes the activation of borate, enhances its complexation with zinc ions, and the crystalline purity is also good. This method is simple, the production is controllable, and there are very few by-products. It is a common process for zinc boric acid.
    Chemical Reactions & Modifications
    Zinc borate is an inorganic compound with stable properties and heat resistance and flame retardancy. Its structure is synergistic with zinc and boron, which can react with free halogen ions in polymer materials, capture zinc halide and boric acid, and then dehydrate. It is coated on the surface of the material, which is flame retardant and efficient. It is also compatible with metal oxides and hydroxides, and reacts to form complexes to enhance the heat resistance and corrosion resistance of the material. Zinc borate is used in polymer modification, which can be uniformly dispersed to improve its flame retardant, mechanical, weather resistance and other properties. In plastics, rubber and other substrates, or in combination with antimony trioxide, aluminum hydroxide, etc., the reaction and modification are combined to ensure that the material properties are durable, and it is widely used in electronics, construction and other fields.
    Synonyms & Product Names
    The chemical name of zinc borate is Zinc Borate, also known as zinc borite, zinc borate, zinc trioxide-diboron trioxide, or the famous ZB233, Firebrake ZB, Firebrake 415, Firebrake 500, or simply Zinc Boron. Its English name is also known as Zinc Borate Flame Retardant. Manufacturers vary slightly due to formula, and their trade names are different: such as Firebrake ZB, Zinc Borate 2335 sold by Ferro Corporation, also known as ZB Fireguard. There are also chemical workshops with compound proportions, which are named ModiZinc Bxx, ZB7, etc. The commercially available products have various synonyms, but they actually refer to the white powder of zinc, boron, and oxygen combined in a fixed ratio. It is mostly used as a flame retardant additive for plastics, rubber, and coatings. Sometimes the nameplate is listed as chlorine-free flame retardant and environmentally friendly boron-based flame retardant, which is another name for zinc borate. Users must check the difference between product names and synonyms when purchasing to distinguish between authenticity.
    Safety & Operational Standards
    Zinc borate, white powder, which is stable in nature and slightly soluble in water. If it gets on the skin or into the eyes, it may cause slight irritation. When handling this object, it is advisable to wear goggles, masks, and gloves to prevent dust from invading the facial features. If it accidentally touches the skin, it should be washed with clean water, and if it enters the eyes, it should be rinsed with flowing water in time. If it is serious, seek medical attention immediately. Operate in a ventilated place to avoid inhaling its dust, which will accumulate for a long time or cause respiratory discomfort. Be careful. Do not drop violently when handling to prevent dust from spreading. Store in a closed container to avoid moisture and strong acids and alkalis. Do not store with flammable, explosive, and corrosive products. After handling, wash your hands and do not drink with dusty food. If there is any leakage, it should be collected with a dust-free sweeper, stored in airtight utensils, and disposed of according to regulations. Do not arbitrarily dump waste in water and soil to prevent pollution of the environment. This product is still a low-toxicity category, but safety should not be ignored, and it is forbidden to eat, drink and smoke during operation. In case of fire, although this product itself is non-flammable, it is heated or reacted with other objects, or releases harmful smoke and dust. It must be put out with water, foam, dry powder, etc. The rescuer should take corresponding protection. During storage, regularly check that the packaging is complete and should not be damaged and leaked. Emergency facilities are available to prevent accidents. Always read the operating rules to educate workers to protect themselves. If you want to keep it safe for a long time, you can only be safe and worry-free if you strictly abide by the procedures and be vigilant everywhere.
    Application Area
    Zinc and boron is a composite material with excellent properties and is widely used in utensils. Its body is heat-resistant and flame-retardant, and is often used in plastics, rubber, and coatings. With flame retardants, it is difficult to invade the fire and makes the utensils stable. It can also cooperate with antimony trioxide, aluminum hydroxide, etc., to help its effect, and is widely respected. Zinc and boron are used in cable sheathing, circuit boards, and furniture paints. Its chemical stability, fire resistance, mildew and antibacterial, and it is also suitable for building materials, especially fireproof boards and walls. Recent research has begun in emerging fields such as ceramics, binders, and rubber-plastic composites. Where there is boron, its properties have been enhanced, and its lifespan has been extended and its uses have become wider. It is important for industrial and commercial manufacturing.
    Research & Development
    Zinc and boron composite, the most important in modern chemical industry. Its flame retardant, both the power of subsidies, widely applied in the field of plastic materials, rubber, coating. Since its inception, engineers have been striving for its refinement, or fine-tuning the particle size, or with dispersion gain, so that its performance has been improved. Through chromatography, the difference between hydrated state and anhydrous state, each has its own strengths, and adapts to multiple needs. In the compatibility study, zinc and boron are used together with metal oxides and hydroxides, and the synergy effect has been repeated, which can reduce the dosage and improve the flame retardant level. During the research and development process, attention is also paid to its environmental friendliness, halogen-free and non-toxic, in line with the trend of green and low carbon. In the future, we will be committed to the innovation of synthesis process, improve output efficiency, and make zinc and boron products shine in the global market, benefiting everyone.
    Toxicity Research
    Zinc borate is a commonly used flame retardant in modern industry. It is applied to resins, coatings, plastics and rubber. It is widely used for natural substances, and there is no safety risk. Therefore, toxicity studies should be conducted to determine whether it is harmful or not. The acute toxicity of zinc borate is minimal when ingested orally. Mild gastrointestinal discomfort occurs at high doses, but there is no risk of fatality. Skin contact, most of them do not see significant irritation reaction, and there is occasional slight discomfort in the eyes, which is also reversible. Animals repeatedly inhale dust, and begin to see respiratory tract inflammation, but the concentration far exceeds the conventional working environment. Long-term intake has no significant damage to liver and kidney function, and there is no clear evidence of reproductive toxicity. However, for aquatic organisms or cause mild harm, it is appropriate to pay attention to waste disposal to prevent environmental pollution. Overall, zinc borate has low toxicity and meets safety standards. However, users should follow the operating procedures carefully to ensure physical and mental health.
    Future Prospects
    Zinc borate is a new material in modern times. Its properties are stable, but it has the effects of flame retardancy, smoke suppression, and anti-corrosion. It is widely used in plastics, rubber, and coatings. At a time when science and technology are advancing, and the general trend of green environmental protection is inevitable, the use of zinc borate is becoming more and more precious. In the future, polymer materials are changing with each passing day, and the refinement and cleanliness of flame retardants are sought, and zinc borate should evolve accordingly. Its process may be more pure, the particle size is micro-nano, the dispersion is good, and the functionality may also be coordinated with a variety of new materials to expand to new energy, aviation, and intelligent assembly. The demand in the international market will increase, and domestic independent innovation is particularly promising. If we can take into account the concept of resource recycling and sustainability, the promotion and application of zinc borate will definitely help the global material industry leap to a new high, and make it safe and healthy for mankind.
    Where to Buy Zinc Borate in China?
    As a trusted Zinc Borate manufacturer, we deliver: Factory-Direct Value: Competitive pricing with no middleman markups, tailored for bulk orders and project-scale requirements. Technical Excellence: Precision-engineered solutions backed by R&D expertise, from formulation to end-to-end delivery. Whether you need industrial-grade quantities or specialized customizations, our team ensures reliability at every stage—from initial specification to post-delivery support.
    Frequently Asked Questions

    As a leading Zinc Borate supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.

    What are the main uses of Zinc Borate?
    Zinc borate is a chemical compound, white in color and slightly soluble in water. It is stable in nature and is often used in process manufacturing, especially famous for its flame retardancy. Its use is first in the fire protection of building materials. In today's buildings, high-rise buildings are lined with high-rise buildings. When there is a fire, flame retardant materials are required to protect safety. Zinc borate is added to polyvinyl chloride, polyolefin, polyester and other polymers to increase its flame retardant effect. It does not burn in case of flame, or can self-extinguish, which is greatly relied on for safety.
    Zinc boron can also be used as a melting aid for ceramics and enamels, making the material easy to melt and uniform in glaze at high temperatures. Its complex energy is used for glass manufacturing, and its strength is enhanced when used, and it is heat-resistant and corrosion-resistant. In the rubber industry, zinc and boron are added to the formula, which has anti-mildew function, so that the rubber is not easy to mildew after storage for a long time.
    Flame retardant plastic appliances required by the electrical industry, zinc and boron are always added materials, which not only prevent combustion, but also prevent arc corrosion. Its chemical properties are stable, non-volatilization and non-precipitation, so it is not easy to damage the performance of products. Zinc and boron can inhibit the precipitation of smoke and toxic gases from plastics or coatings, and protect people's lives in the event of a fire. Today's fireproof cables, home appliance shells, and electronic product components have more power than zinc and boron to enhance their safety.
    In addition, zinc boron is added to coatings, which can inhibit rust and fungus breeding and prolong the life of equipment. It is also a The refinement of the process and the wide application depend on the stable properties of zinc and boron, which are non-toxic and harmless, and are coordinated with a variety of materials. The pioneers in the chemical industry have widely studied and synthesized their products, and finally became the necessary industrial assistance in this world. It is the use of zinc and boron as industrial raw materials, which is actually important for social security and technological progress, and its benefits are obvious and difficult or lacking.
    What are the chemical properties of Zinc Borate?
    In the case of boric acid, it is a chemical compound of the formula 2ZnO · 3B 2O O · 3H 2O O, or other proportions. It is white, slightly soluble in water, and vibrates in the presence of acid. Its properties are stable, and when it encounters high loss of crystalline water, it is added above 600 ° C, and the water escapes to form water. At higher temperatures, it decomposes and oxidizes boric acid or boron oxides. Boric acid is slightly swollen and soluble in water, so it is often used as flame retardant and low-temperature for work. In case of acid and sulfuric acid, it is decomposed to form boric acid. In case of oxidation, etc., it can dissolve and precipitate acid and boric acid.
    In addition to use, its properties are particularly multi-terminal. Its stability is good, and it does not self-degrade under normal conditions. In case of open flame, it does not support combustion, but can retard the speed of material combustion, so it is used in plastics, rubber, and rubber materials to increase its fire resistance. In the polymer system, it is difficult to communicate, and the strength and performance of the lifting polymer are improved. It also has antibacterial and antibacterial properties, and is suitable for various products such as rubber and building materials.
    Acidophilic, it is easy to release its components in acidic media; in case of original oil, oxygen loss, part of the original oil or secondary boron. Those who are soluble in sulfuric acid and carbonate can be formed by the acid of the environment. Under ultraviolet light, there is little color, and it is not resistant, which can be damaged for a long time. When the moisture is encountered, it can be used for the processing of synthetic reaction or composite materials, or it can affect the best performance of the product.
    , it involves many reasons, and it can be different. Its fixed and multi-dimensional nature is applied to the next generation of materials.
    What is the role of Zinc Borate in flame retardant materials?
    Boric acid, a chemical product, is safe and soluble, and its appearance is white powder. Its initial decomposition degree is high, and it is often used in combustion. The use of flame retardant materials, especially its function, can be flame retardant, fire retardant, fire retardant, and fire retardant. "Materia Medica A and B": Fire is easy to obtain but difficult to prevent. Those who make devices skillfully, and those who think well, all want to make them. Vanilla, polyester, rubber, and plastic are flammable in case of fire. They are flammable in case of fire, and they are flammable. As a result of the method of work and flame retardant, the combination of stones, the use of boric acid in production, so the name of boric acid is very important.
    Where is it? One said: to promote the generation of charcoal, the flame of the flame, the use of charcoal to reject. Where there is a high temperature, the multi-chemical package is lost. If there is boric acid, it will decompose and generate boric acid and water. When water encounters water, it will reduce the surrounding temperature and eliminate the spark. Boric acid covers the surface, seals the base, isolates oxygen, and burns. And when boride meets high temperature, it can interact with molecules to form dense carbon, just like a shield. The second is: the same synergy, the same application of flame retardants such as oxidation, trioxide, etc., can be reversed, reducing the dosage of other products, and improving the overall flame retardant efficiency; at the same time, it can reduce toxicity and be elegant and beneficial to the environment. The third is: resistance to stability, it is not easy to decompose at high temperatures, and it can be combined with multiple melting products.
    Therefore, the wonders of boric acid are not related to flame retardancy, but can be used to complement each other. Today's work is complex, and flammable materials are made of cloth. Every time you encounter a loss of caution, you will be urged. This can be used to shelter human shelter and cause less damage. Its transformation, manufacturing characteristics, and performance are excellent, which can be highly flame retardant. The workmanship of the device, careful with the amount, according to the material, the efficiency is good.
    This, boric acid, flame retardant, can be fire resistant, and the device can be installed in the home, and the reason is clear. It is indispensable.
    What are the storage and shipping requirements for Zinc Borate?
    Zinc borate is a commonly used chemical additive, widely used in flame retardant, smoke suppression and other fields. Its nature is safe, but it can decompose harmful gases in case of high temperature, and its dust can easily cause discomfort to the human body if it is in the air for a long time. Therefore, when it comes to its storage and transportation, it needs to be followed by regulations and should not be ignored.
    Store zinc borate, when choosing a cool, ventilated and dry place, avoid exposure to the hot sun and prevent rain leakage. It should be packaged in sealed utensils or coated films to prevent moisture invasion and avoid moisture absorption and agglomeration. In the storage room, it should not be mixed with flammable and explosive substances, nor should it be mixed with strong acids, strong alkalis and other reactive substances to prevent unexpected changes. The stacking height must be appropriate, not too high, so as not to overturn and cause disaster.
    When transporting zinc borate, special equipment should be used, plus sealed packaging. When handling, beware of drops and impacts to prevent packaging damage. Transportation vehicles should be kept clean and dry, and are strictly prohibited from being loaded with food, feed or hazardous chemicals with peculiar smell and volatile. In case of rainstorms, blizzards and hot sun, there must be shielding measures to avoid damage to packaging and product deliquescence. On the way, keep away from fire sources, avoid being adjacent to fire and electric sparks, and ensure that the road is unobstructed.
    When loading and unloading zinc borate, personnel should wear protective clothing, masks and gloves to prevent dust inhalation and skin contact. Strictly abide by the operating procedures, handle it with care, and do not splash dust. The unloading site must have good ventilation, and there is no bright fire source. After the storage tank and cargo box are used up, clean it in time, leaving no residual substances, and keep the environment clean.
    Although zinc borate is not highly toxic, it is inhaled powder for a long time, which may cause damage to the respiratory system, and should be prevented in the future. Between storage and transportation, every abnormality must be immediately identified, properly disposed of, and not slightly relaxed. In this way, zinc borate can be safely stored and transported without the risk of disaster, and people's safety and safety should be guaranteed.
    What are the effects of Zinc Borate on the environment and the human body?
    Zinc borate is chemically stable and is widely used in flame retardant and antibacterial materials. It is slightly toxic, not as strong as arsenic and mercury, but still affects the human body. If the human body inhales its dust, it is easy to cause cough, itchy throat, shortness of breath, and can also cause rhinitis and bronchitis. If eaten by mistake, it can cause abdominal pain, vomiting, diarrhea, and in severe cases disrupt kidney function. Contact with skin often causes red itching, mild inflammation, and eye contact also causes discomfort. In conventional doses, toxicity is not strong, but exposure is too severe, and it is not safe in the end. Caution should be taken.
    Zinc borate dissolves very little in water, but then flows with the water body, seeps into the soil, and gradually accumulates. Clouds and rain settle, entering rivers, lakes and seas, which is also harmful to aquatic organisms. Long-term exposure to fish and shrimp, growth is inhibited and reproduction is reduced. For some plants, over time, the root system decays and the leaves and veins turn yellow. A small amount of boron is needed by plants, and too much is poisonous. In its heyday, the grass and trees are withered, and the land is gradually reduced. Although zinc is also beneficial, it accumulates too much, which disturbs the balance of metal ions in animals and causes metabolic disorders.
    However, zinc borate has both environmentally friendly properties. Compared with halogens and heavy metal flame retardants, it has low volatility, lasts for a long time in the material, has no odor, is non-toxic, and does not produce carcinogens such as dioxin. Waste incineration, the main ingredients are zinc oxide, boron oxide, and no highly toxic gases escape. Therefore, if properly managed and compliant, the potential pollution is much lighter than that of traditional flame retardant additives.
    Modern technology generally uses zinc borate in plastics, coatings, fibers, etc., mostly to encapsulate and solidify particles to reduce free dust, which is not easy to be exposed to workers or users. Factory operations focus on ventilation and dust removal. Workers wear protective gear and wash their hands frequently to be safe. Waste disposal should be collected and returned to storage, and rivers should not be dumped at will, so as not to involve the ecology.
    In summary, zinc borate is good for the environment and human body. If it is used well and prevented from escaping, the advantages far outweigh the disadvantages. If there is a lack of prevention, excessive leakage will cause harm to people and animals. Therefore, the system is prudent and the disposal must be appropriate, so that the benefits can be obtained without future problems.