Anhydrous Zinc Borate

Aosen New Material is a professional and reliable supplier of Anhydrous zinc borate. Anhydrous zinc borate is an inorganic additive flame retardant. It is characterized by being non-toxic, tasteless, having excellent high-temperature stability, insoluble in water and common organic solvents, as well as having a high thermal decomposition temperature and high thermal conductivity; anhydrous zinc borate has less than 1% weight loss at 400 degrees Celsius; it remains stable at 600 degrees Celsius. As a flame retardant and smoke suppressant, anhydrous zinc borate can be used in polymer systems that require high-temperature processing, such as high-temperature nylons, polyesters, polyether ketones, polysulfones, and fluoropolymers. Aosen provide customers Anhydrous zinc borate with good quality and reasonable price , feel free to contact us for sample!

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Product Description

Product name: Anhydrous Zinc Borate

Other name:Zinc borate;ZINC BORATE OXIDE ANHYDRATE

Cas No.: 1332-07-6

Appearance: White powder

Density:3.64 g/cm3

Melting point: 980℃

Molecular weight: 371.6

Anhydrous zinc borate is an important component of high-efficiency inorganic flame retardants. Due to the special physical and chemical properties of anhydrous zinc borate, it can be widely used in various applications including flame retardation (high-temperature nylons, polyesters, polyether ketones, polysulfones, fluoropolymers, wires and cables, automotive parts, etc.), anti-corrosion and anti-mildew treatment in coatings, the manufacture of white pigments, pharmaceutical auxiliary materials, thermal applications in high-tech fields such as spacecraft, and also plays a significant role in ceramic glazes and fungicidal agents.

Technical specification of Anhydrous Zinc Borate

Item	Specification	Result
Appearance	White powder	White powder
ZnO content (%)	42-44	43.64
B2O3content (%)	52-56	54.80
Surface water %	≤0.05	0.024
Crystalline water (%)	≤1.5	0.34
Lead ppm	≤10	8.5
Cadmium ppm	≤5	3
Average particle size D50 (um)	2-8	2.6

The features for Anhydrous Zinc Borate

(1) High heat resistance and flame retardant properties:

Compared to zinc borate with water, anhydrous zinc borate has a higher thermal decomposition temperature, with less than 1% weight loss at 400°C and remains stable at 600°C. When added to high-temperature processing polymer systems such as high-temperature nylon and polyester, it can effectively function as a flame retardant, inhibit combustion reactions, and enhance the flame retardant level of the material.

(2) Excellent physical and chemical stability:

Anhydrous zinc borate is non-toxic, odorless, insoluble in water and common organic solvents, and has stable physical and chemical properties. When compounded with various materials, it does not alter the original chemical properties of the materials and can also improve the tracking index, enhancing the overall stability of the materials.

(3) Multi-domain applicability:

Anhydrous zinc borate is applicable in various fields, playing a significant role in industries such as plastics, rubber, electronic products, and building materials. It reduces the flammability in plastic and rubber products; in electronic products, it protects the safety of electronic equipment; in building materials, it improves fire resistance; and it can also be used as a flame retardant and smoke suppressant in polymer systems that require high processing temperatures.

(4) Good environmental safety:

As an inorganic flame retardant, anhydrous zinc borate does not produce toxic or harmful gases during combustion, posing no harm to the environment and human health, and meets environmental protection requirements.

Packaging And Transportation Of Anhydrous Zinc Borate

Considering the characteristics of the Anhydrous Zinc Borate, Anhydrous Zinc Borate should be loaded and discharge lightly during transportation to prevent collision, rain, sun exposure, and pollution. Products should be stored in a ventilated, dry, and clean warehouse, and stacking is strictly prohibited.

The Packaging of Anhydrous Zinc Borate is 25kg/bag