Products

The Right Chemicals for Your Applications

Zinc borate CAS#1332-07-6

Zinc borate CAS#1332-07-6

Basic Information

Zinc borate
w; h; i; t; e; ; n; o; n; -; f; l; a; m; m; a; b; l; e; ; a; m; o; r; p; h; o; u; s; ; p; o; w; d; e; r

Zinc borate is a white amorphous powder with limited water solubility and compatibility with polymer formulations. It promotes char and protective glassy layers and, in hydrated forms, releases water during heating. Applications include flame-retardant plastics, rubber, textiles, coatings and adhesives, often alongside other retardants, with additional roles in afterglow suppression and electrical tracking resistance.

Can't Find The Product You Need?

Tell Us Your Product Requirements, Specifications And Target Industry, Our Professional Team Will Reply You Within 24 Hours.

Chat Now
Chat Now
product description

High-Performance Flame Retardancy: Provides effective flame retardant action in both solid and gas phases, enhancing fire safety across various polymer systems.


Excellent Smoke Suppression: Promotes the formation of a protective glassy and char layer, significantly reducing toxic and irritating smoke during combustion.


Strong Synergistic Effects: Works efficiently with halogenated flame retardants, antimony trioxide, and alumina trihydrate (ATH), allowing lower additive loadings while maintaining performance.

Enhanced Thermal and Electrical Protection: Releases water of hydration above 290 °C to cool flames, suppress afterglow, and improve resistance to electrical degradation, including high anti-arcing and anti-tracking properties.


Product Description of ‌Zinc borate CAS#1332-07-6

Zinc borate is a white non-flammable amorphous powder, soluble in dilute acids and slightly in water.

A boron-series flame retardant with good polymer compatibility, it acts in both condensed and gas phases and has excellent smoke suppression. It forms protective glassy and dense carbon layers to reduce toxic smoke, and releases crystal water above 290°C to cool flames.
It synergizes with halogenated flame retardants (especially antimony trioxide, further enhanced by aluminum hydroxide). It also improves electrical degradation resistance (arc/tracking resistance) and serves as an efficient afterglow inhibitor.


Product Application of Zinc borate CAS#1332-07-6

Zinc borate is primarily a flame retardant for plastics, fibers, paper, rubber, textiles, coatings, adhesives and pigments.
It acts as a synergist to partially/fully replace antimony trioxide in both halogenated and halogen-free systems, also serving as anti-dripping, char-promoting and afterglow-inhibiting agent, and reducing arc/tracking in electrical plastics.
In halogenated systems, it is compounded with antimony trioxide and alumina trihydrate, accelerating char formation and facilitating halogen release via zinc halides/oxyhalides. In halogen-free systems, it combines with alumina trihydrate, magnesium hydroxide, etc., forming a porous borate ceramic layer; with silica, it generates borosilicate glass to boost flame retardancy.
EPA-approved as a halogenated flame retardant alternative, it is widely used in PVC, PE, PP, polyamides, epoxy resins, rubbers and other polymers. It also enhances fire resistance of paper, fabrics, panels, flooring, wallpaper, carpets, ceramic glazes, fungicides and coatings.


Product Specifications

Parameters


Melting point980 °C
density3.64 g/cm3
Cosmetics Ingredients FunctionsSKIN CONDITIONING - HUMECTANT
LogP-0.292 (est)
CAS DataBase Reference1332-07-6(CAS DataBase Reference)
EPA Substance Registry SystemZinc borate (1332-07-6)
Hazardous Substances Data1332-07-6(Hazardous Substances Data)
ToxicityZinc borate 2ZnO3B2O3·3.5H2O has an acute oral toxicity in rats LD50 >10000 mg/kg body weight and acute dermal toxicity in rabbits LD50>10000 mg/kg body weight. It is not a skin irritant and gives a negative response in the Ames mutagenicity test (Kirk-Othmer, 1994).


Factory Showcase
拼图_美图设计室-(1)
Shipping And Transportation

Delivery Time

Inventory 2-3 working days New manufacturing 7-10 working days

Mode of Transportation
1. By Air, fast but expensive.
2. By Sea, usual and economy.
3. By Train, suit for middle Asia countries.
4. By Express, suit for small package.
We only provide highest quality goods available, accompanied by after support!

拼图_美图设计室
FAQ

1. What products does Shandong Junzheng Chemical supply?
We supply inorganic chemicals, organic solvents, water treatment chemicals, and surfactants, including calcium chloride, soda ash, sodium bicarbonate, caustic soda, citric acid, ethyl acetate, and SLES. Please contact us to confirm specific product availability.


2. Which industries do your products serve?
Our products serve pharmaceutical, agrochemical, dye, rubber, construction, coal processing, and other chemical industries. Product suitability depends on the required grade, specifications, and application.


3. How can I get a quotation?
Please provide the product name, CAS number, required specifications, quantity, packaging requirements, and destination port. These details help us prepare an accurate quotation.


4. How do you control product quality?
We follow strict quality testing procedures supported by technical personnel, research equipment, and an established management system. Specific quality requirements can be confirmed before placing an order.


5. Can you help me select a suitable chemical?
Yes. Our technical team can assist with product selection based on your application and required specifications. Please share your intended use and key technical requirements.

Contact Us
Submit
Recommendation