Buy good quality Wollastonite mineral powder thin section high aspect ratio needle fibrous at low price Wedge India. Wollastonite is a naturally occurring mineral composed of calcium silicate (CaSiO3). It is typically white, but it can also be found in shades of gray, yellow, or brown. Wollastonite has a unique combination of properties that make it valuable in various industrial applications.
 
Properties Wollastonite
High Temperature Stability:
Wollastonite can withstand high temperatures, making it suitable for applications requiring thermal resistance.
Chemical Inertness:
It is chemically inert, meaning it does not react with many chemicals, which is beneficial for use in chemically aggressive environments.
Acicular (Needle-like) Structure:
The acicular structure of wollastonite improves mechanical properties in composites and coatings.
Low Water Absorption:
Low water absorption makes it ideal for use in paints, coatings, and sealants.
High Brightness:
Its high brightness and whiteness make it useful in applications where color and appearance are important.
Non-Toxic:
Wollastonite is non-toxic and environmentally friendly, making it safe for various applications.
 
Applications of Wollastonite
Ceramics: Used as a flux to reduce the firing temperature and improve the mechanical properties of ceramics.
Plastics and Rubber: Acts as a reinforcing filler to enhance strength, dimensional stability, and thermal resistance.
Paints and Coatings: Improves durability, adhesion, and resistance to weathering and chemicals.
Construction Materials: Used in cement and concrete to improve strength, reduce shrinkage, and enhance durability.
Metallurgy: Serves as a fluxing agent in steel and iron production, helping to remove impurities and improve the quality of the final product.
Friction Products: Used in brake pads and clutches to enhance friction and wear resistance.
Filtration: Employed in filtration systems due to its chemical inertness and stability.
Adhesives and Sealants: Enhances mechanical properties and reduces shrinkage and cracking.
 
Technical Specifications
Chemical Composition: Typically contains 48-52% calcium oxide (CaO) and 48-52% silicon dioxide (SiO2).
Physical Properties:
- Density: Approximately 2.9 g/cm³
- Hardness: 4.5-5 on the Mohs scale
- Refractive Index: 1.62-1.63
- Melting Point: About 1540°C
 
Features and Benefits of Wollastonite
Wollastonite is a tritenal crystal, a thin plate-shaped crystal, and the collection body is radial or fiber. The color is white, sometimes light grey and light red. The glass lustre, the explanation surface is pearl lustre. Completely dissolved in concentrated hydrochloric acid. Under normal circumstances, acid resistance, alkali resistance, and chemical corrosion. Humidity is less than 4%. Low oil absorption, low conductivity, and good insulation. Wollastonite is a typical deterioration mineral, which is mainly produced in the contact zone of acid rocks and limestone, which is symbiotic with runes and garnet. It is also found in deep -deteriorating calcium chip rocks, volcanic spraying objects and certain alkaline rocks.
 
Wollastonite is a kind of inorganic needle -shaped mineral. Its characteristics are non-toxic, chemical resistance, thermal stability and stable size, with glass and pearl lustre, low water absorption and oil absorption value, excellent mechanical performance and electrical performance, and have certain certainty, reinforcement effect. Wollastonite products, long and easy to separate fibers, low iron content, and high whiteness. This product is mainly used as a enhanced filler for high polymer composite materials such as plastic, rubber, ceramics, coatings, building materials and other industries.
 
Environmental and Health Aspects
Wollastonite is considered safe and non-toxic, with no significant health hazards associated with its use. It is environmentally friendly and can be used in green building materials and sustainable products.
 
Wollastonite is a versatile mineral with a wide range of industrial applications due to its unique combination of properties. From ceramics and plastics to construction materials and paints, wollastonite enhances the performance and durability of products. Its high temperature stability, chemical inertness, and environmentally friendly nature make it an invaluable resource in various industries.
 
It occurs as aggregates of bladed or needle-like crystals with hardness of 4.5 to 5 on Mohs' scale. The uses of wollastonite in applications other than as filler include marine wallboard, paint, plastic, in refractory liners in steel mills and as a partial replacement for short-fibre asbestos in certain applications.