Colloidal Silica

Introduction

Colloidal silica is a dispersion of nano-sized silica particles in water or other solvents. According to the different particle size and particle dispersion, our products have two kinds of appearance color: transparent light blue or milky white.

In order to meet the needs of customers, the scientists of Alpha Chem continue to upgrade the preparation process of colloidal silica. Mineral silica is often highly contaminated with various metal ions and is not suitable for colloidal silica applications. Therefore, we choose to produce colloidal silica for scientific and commercial use through various chemical synthesis methods.

Figure 1. Different colloidal silica production methods.^[1]

Alfa Chemistry's colloidal silica product portfolio covers conventional, large and small particle size, quick-drying, modified, organic solvent-based and non-spherical types. All products are produced in a manufacturing network that meets international quality certifications.

Research and Development

Colloidal silica can be widely used as reinforcing materials in chemical industry, precision casting, textile, oil field, papermaking, paint, food, electronics, medicine and other fields. For example, colloidal silica nanoparticles can reduce the adsorption of surfactants on sand particles and effectively improve oil recovery efficiency; colloidal silica particles can also be used as an alternative catalyst for green energy carriers in H₂ generation from the methanolysis of NaBH₄.

Fig.2 Adsorption of SDS on the sand particle surface in the presence of CSNs.^[2]

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Alfa Chemistry can screen out the most suitable colloidal silica products for their applications according to the needs of customers. In addition, we can provide customers with tailor-made products to help customers develop new application areas. We hope to bring you the best quality product and service experience.

References

1. Hyde E, et al. Colloidal Silica Particle Synthesis and Future Industrial Manufacturing Pathways: A Review. Industrial & Engineering Chemistry Research. 2016, 55(33):8891-8913.
2. Yuqi Zhao,Xiangming Wang. Current Research and Applications of Silica sol. China Chemical Trade. 2018, 10(012):112-113.
3. H Kesarwani, et al. Application of Novel Colloidal Silica Nanoparticles in the Reduction of Adsorption of Surfactant and Improvement of Oil Recovery Using Surfactant Polymer Flooding. ACS Omega. 2021.

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