Company/Brand Reference: Green Agrochem
Product Name: Magnesium Lignosulfonate (Magnesium Lignosulphonate)
CAS Number: 8061-54-9
Chemical Nature: Anionic surfactant, water-soluble polymer derived from the sulfite pulping process of wood.
1. General Description
Magnesium Lignosulfonate is a highly soluble, yellow-brown powder that acts as a natural, eco-friendly biopolymer. It contains a high concentration of lignosulfonate groups and naturally occurring magnesium. Because it is highly reactive and completely soluble in water, it is widely used as a chelating agent in agriculture, a binder for animal feed, and a dust suppressant in industrial applications.
2. Technical Specifications (Powder Form)
Below are the standard technical parameters for commercial-grade Magnesium Lignosulfonate:
| Specification | Typical Value / Limit |
| Appearance | Yellow Brown powder |
| Dry Matter (Solid Content) | ≥ 95.0% |
| Lignosulfonate Content | ≥ 50.0% – 55.0% |
| pH Value (10% aqueous solution) | 4.0 – 7.0 |
| Magnesium Content (Mg) | ≥ 6.0% – 8.0% |
| Water-Insoluble Matter | ≤ 1.5% |
| Reducing Sugar | ≤ 7.0% – 12.0% |
| Moisture Content | ≤ 7.0% |
| Solubility | 100% completely soluble in water |
3. Primary Applications
Magnesium Lignosulfonate’s unique combination of binding properties and rich magnesium content makes it highly valuable across several industries:
- Agriculture (Plant Nutrition): Functions as a highly effective, natural chelating agent for micronutrients. It provides a readily available source of magnesium (an essential component of chlorophyll) to plants, correcting magnesium deficiencies and improving overall crop yield.
- Animal Feed Binder: Used as a non-toxic, natural adhesive in the pelleting process of poultry and livestock feed. It improves pellet durability, reduces fines and dust, and acts as a mild lubricant during the extrusion process, saving energy in the feed mill.
- Dust Control & Soil Stabilization: When dissolved in water and sprayed onto unpaved roads, construction sites, and mining stockpiles, it binds fine dust particles together, creating a hard, sun-baked crust that prevents wind erosion.
- Construction & Concrete: Acts as a water-reducing agent (plasticizer) and retarder in concrete formulations, improving the workability of the mix without compromising final compressive strength.
- Industrial Binders: Used as a binder in the manufacturing of refractory bricks, ceramics, and coal briquettes due to its excellent adhesive properties when mixed with water and dried.
4. Packaging and Storage
- Packaging: Standardly supplied in 25 kg woven PP bags with PE inner liners to prevent moisture ingress. Bulk jumbo bags (500 kg / 600 kg) are available upon request.
- Storage Conditions: Store in a cool, dry, and well-ventilated warehouse. Keep containers tightly closed when not in use.
- Hygroscopicity: The powder is hygroscopic and will absorb moisture from the air if left exposed, leading to caking or lumping.
5. Safety and Handling
- Toxicity: Biologically derived, completely biodegradable, and non-toxic to humans, animals, and aquatic life.
- Handling Precautions: While non-toxic, fine dust may cause mild mechanical irritation to the eyes or respiratory tract. It is recommended to wear standard personal protective equipment (PPE) such as a dust mask, safety goggles, and gloves during handling.
- First Aid: In case of eye contact, flush with plenty of water. Wash skin with soap and water after handling.