Calcium lignosulphonate is named calcium ligno(organoso ignin, short for MG-2).HS code:3804000090; CAS: 8061-52-7. Extracted for wood pulp, it is a natural polymer, and has strong dispersion. As a surface-active substance, it can adsorb on the surfaces of various solid particle. Molecular weight generally between 800-10000, with strong dispersion, bonding, chelate. At present, calcium lignosulphonate widely promoted and applied in resins, rubber, dyes, pesticides, ceramics, cement, asphalt, feed, water treatment, water coal slurry, concrete, refractories, oil drilling, compound fertilizer, smelting, casting, adhesive, chelating agent/anti-scale chemical etc.