Precipitated silica is a highly versatile and fine white powder produced through a precise precipitation process involving silicate salts. Renowned for its amorphous structure, this form of silicon dioxide (SiO2) is created by inducing a chemical reaction between an alkaline silicate solution and a mineral acid like sulfuric acid. The controlled parameters during production—including agitation, reaction duration, addition rates, temperature, concentration, and pH—allow manufacturers to tailor the physical properties and performance characteristics of the precipitated silica to meet diverse industrial needs. Key benefits of precipitated silica include its high surface area, excellent absorbent capabilities, and unique reinforcing properties, making it an essential ingredient across multiple sectors such as rubber, coatings, and pharmaceuticals. Contrary to gel forms, the manufacturing process prevents the formation of undesirable gel stages, ensuring the final product is a high-quality, dry powder suitable for a broad range of applications.
Key Features
| Features | Description |
|---|---|
| Chemical Composition | Silicon Dioxide (SiO2) |
| Physical Form | Amorphous white powder |
| Production Method | Precipitation from silicate solutions |
| Key Property | High surface area with excellent absorption |
| Safety | Non-toxic and safe for industrial use |
| Applications | Uses in rubber, coatings, pharmaceuticals, and food industries |
| Customization | Adjustable through manipulation of production parameters |
| Attributes | Description |
|---|---|
| Primary Base Material | Silicate Salts |
| End Product Morphology | Fine Powder |
| Typical Particle Size | 10-50 microns (depending on processing) |
| pH Value | Often controlled within a range of 7-10 during production |
| Appearance | White Powder |
| Solubility | Insoluble in water, but highly dispersible |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
Precipitated silica is widely used in rubber manufacturing, coatings, pharmaceuticals, and food production due to its reinforcing, thickening, and absorbent properties.
Quality is maintained through precise control of production parameters such as temperature, pH, agitation, and reaction timings, which prevents the formation of gel states.
Precipitated silica offers a higher surface area, increased absorbency, and the ability to customize its properties for specific applications, unlike pyrogenic silica and silica gels.
Yes, the production process is flexible, allowing for modifications in particle size, surface area, and chemical treatment to suit various industrial applications.
Yes, precipitated silica is non-toxic and is often used in food and pharmaceutical products, adhering to safety regulations.
Brand: rmsil - 200
Country Of Origin: India
Precipitated silica is a silica (SiO2) produced by precipitation from a solution containing silicate salts. The production of precipitated silica starts with the reaction of an alkaline silicate solution with a mineral acid. Sulfuric acid and sodium silicate solutions are added simultaneously with agitation to water. Precipitation is carried out under alkaline conditions. The choice of agitation, duration of precipitation, the addition rate of reactants, their temperature and concentration, and pH can vary the properties of the silica. The formation of a gel stage is avoided by stirring at elevated temperatures. The resulting white precipitate is filtered, washed and dried in the manufacturing process.
Precipitated silica is an amorphous form of silica (silicon dioxide, SiO2); it is a white, powdery material. Precipitated silica is produced by precipitation from a solution containing silicate salts. The three main classes of amorphous silica are pyrogenic silica, precipitated silica and silica gel.
