Silicon dioxide, commonly known as silica
Product Introduction：
Silicon dioxide is a versatile ingredient widely used in toothpaste formulations for its gentle yet effective cleaning properties. As a mild abrasive, it helps remove plaque, stains, and debris from teeth without damaging enamel, promoting a brighter, healthier smile. Its fine particle structure ensures a smooth polishing action, enhancing toothpaste’s whitening effect while maintaining oral safety. In addition, silicon dioxide contributes to the consistency and stability of toothpaste, ensuring a smooth texture and easy application. Biocompatible, tasteless, and safe for daily use, it is a trusted additive that supports both oral hygiene and product performance in modern dental care.
Characteristics：
Silicon dioxide is widely used in toothpaste for its gentle cleaning and polishing abilities. Its fine particles remove plaque, stains, and food debris effectively while protecting tooth enamel. As a safe, inert, and biocompatible compound, it is tasteless and non-reactive, making it suitable for daily oral care. In addition to cleaning, silicon dioxide improves toothpaste texture and consistency, ensuring smooth application.
Key Functions:
- Gentle cleaning abrasive
- Safe and biocompatible
- Smooth texture enhancer
Specifications：
| Product series | Low-friction | Medium-friction | High-friction | Thickening | Comprehensive |
| Characteristics | Standard | ||||
| Appearance | White power without granulation or impurity in visual detection | ||||
| Water Absorption | 18-24ml/20g | 15-18ml/20g | 8-15ml/20g | ≥40ml/20g | 30-36ml/20g |
| PH (5% Slurry) |
6.0-8.5 |
5.5-8.5 | 6.5-8.5 | ||
| Purity as SiO₂ |
≥96% |
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| Loss on Drying (105℃) | ≤10% | ||||
| Loss on Ignition(1000℃) | ≤8.5% | ||||
| Particle Size, Pass on Sieve 325 |
≥98% |
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| Total Salts(as Na₂SO₄+NaCI) | ≤2.0% | ||||
| Sulfide content | No color streak | ||||
| Fe content | ≤350mg/Kg | ||||
Applications：
Silicon dioxide is widely used in oral care formulations as a multifunctional ingredient. Its primary role is as a mild abrasive and polishing agent, helping to effectively remove plaque and surface stains without damaging enamel. It also functions as a thickener and rheology modifier, giving toothpaste the desired consistency and stability, while supporting the uniform distribution of active ingredients.
Packaging and transport：
The standard packaging is a 25KG/10KG bag. Both packaging and transport meet the international regulations. For the availability of other packed quantities, please contact us.
Silicon Dioxide is not classified as a dangerous good according to national and international transport regulations.