Lignin derivatives, particularly lignosulfonates, offer a versatile range of functionalities across numerous industries. Among these, Calcium Lignosulfonate and Sodium Lignosulfonate are widely used. However, understanding their distinct properties and optimal applications is crucial for making informed purchasing decisions. As a chemical supplier, we aim to clarify these differences to assist our clients.

The primary distinction lies in their cation: Calcium Lignosulfonate uses calcium ions (Ca2+), while Sodium Lignosulfonate uses sodium ions (Na+). This difference impacts their solubility and pH. Sodium Lignosulfonate generally exhibits higher water solubility and a more neutral pH (4-7), making it favored for applications requiring better fluidity and dispersion, such as concrete admixtures and drilling fluids. Conversely, Calcium Lignosulfonate is typically less soluble and more acidic (pH 3-5), yet its higher calcium content can be beneficial in applications like fertilizers or soil amendments. It also offers strong binding and dispersing properties suitable for animal feed, refractories, and dust control.

When deciding which lignosulfonate to buy, consider your specific application requirements. If optimal dispersion and fluidity are key, sodium might be preferred. If binding strength and calcium content are beneficial, calcium could be the better choice. For both types, sourcing from a reliable manufacturer and supplier in China is essential for ensuring quality and competitive pricing. We recommend consulting with our experts to determine the most suitable lignosulfonate for your needs, whether you are looking to buy Calcium Lignosulfonate or Sodium Lignosulfonate.