Lignin
Lignin Manufacturer | Sustainable Biopolymer & Binder (CAS: 8068-05-1 / 8068-3-9) Source: Coniferous Wood (Kraft Process/Alkali) | Type: Alkali Lignin / Sodium Lignosulfonate | Certifications: ISO9001, FAMI-QS (Feed) USP: High Binding Power | Natural Dispersant | Eco-Friendly & Biodegradable
Introduction
Lignin (CAS: 8068-05-1 / 8068-3-9) is the second most abundant natural polymer on Earth, acting as the structural "glue" in plants. Industrially, it is extracted primarily via the Kraft process (Alkali Lignin) or sulfite process (Lignosulfonate).
It is a complex, amorphous 3D biopolymer rich in aromatic rings, methoxyl groups, and hydroxyl groups. This unique chemical structure endows it with exceptional properties as a binder, dispersant, chelating agent, and antioxidant, making it a versatile green material for animal feed, agrochemicals, and industrial formulations.
Category：
Keywords：
lignosulfonate
dispersant
biodegradable
Functions
1. Superior Binding Agent
Lignin exhibits strong adhesive properties. In animal feed pelleting, it acts as a natural binder, improving pellet durability (PDI) and reducing fines, which minimizes waste and dust.
2. Dispersing & Emulsifying
Due to its amphiphilic nature (containing both hydrophilic and hydrophobic groups), Lignin effectively reduces surface tension. It prevents particle agglomeration in suspension concentrates (SC) for pesticides and improves the flowability of concrete admixtures.
3. Antioxidant & UV Protection
The phenolic hydroxyl groups in Lignin scavenge free radicals. This antioxidant capacity stabilizes sensitive active ingredients (e.g., vitamins in feed) and provides natural UV shielding in agricultural films or coatings.
Applications
Animal Feed Additive: Used as a pellet binder (1-2% inclusion) to improve pellet quality and feed efficiency. Also acts as a prebiotic fiber source.
Agrochemicals: A premium dispersant for pesticides, herbicides, and fungicides, ensuring uniform application and suspension stability.
Construction & Ceramics: A water-reducing agent (plasticizer) for concrete and a green binder for ceramic bodies, increasing green strength.
Dust Control: Used on unpaved roads and mining piles to suppress dust and stabilize soil.
Flow Chart
Our production transforms sustainable forestry by-products into high-value biopolymers:
1.Raw Material: Wood chips (Pine/Spruce).
2.Pulping (Cooking): Treatment with NaOH/Na$_2$S to dissolve lignin from cellulose.
3.Filtration: Separating the "Black Liquor" (Lignin-rich liquid).
4.Acidification: Lowering pH with CO$_2$ or H$_2$SO$_4$ to precipitate crude lignin.
5.Purification: Washing to remove residual salts and ash.
6.Modification (Optional): Sulfonation or oxidation for specific functional grades.
7.Drying: Spray drying into a free-flowing brown powder.
Quality Standard of Lactoferrin
Product: Alkali Lignin (Industrial/Feed Grade)
CAS No.: 8068-05-1 (Ref 8068-3-9)
| Item | Specification | Result |
| Appearance | Brown to dark brown powder | Conforms |
| Lignin Content | $\ge$ 95.0% (Dry basis) | 96.2% |
| pH (1% Solution) | 9.0 – 11.0 | 10.1 |
| Moisture | $\le$ 7.0% | 5.2% |
| Ash Content | $\le$ 5.0% | 3.8% |
| Insolubles (in water) | Depends on grade (Alkali Lignin has varying solubility based on pH) | -- |
| Reducing Sugars | $\le$ 3.0% | 1.5% |
| Heavy Metals (Pb) | $\le$ 20 ppm | < 10 ppm |
Method of Analysis of Lactoferrin
• Lignin Content: Measured via UV Spectroscopy (absorbance at 280nm vs. standard) or Gravimetric analysis (Klason Lignin method) for total purity.
• pH & Moisture: Standard AOAC methods to ensure compatibility with formulation processes.
Reference Chromatogram of Lactoferrin Reference Substance
(Note: Lignin is a complex polymer, so standard HPLC is rarely used for identification. Instead, GPC (Gel Permeation Chromatography) is used to determine molecular weight distribution.)
The GPC profile of our Lignin shows a consistent molecular weight average (Mw ~3,000-5,000 Da) with a polydispersity index optimized for binding efficiency.
Stability and Safety
Stability Studies
• Shelf Life: 24 months.
• Conditions: Stable chemically. Hygroscopic; must be kept dry.
• Data: Long-term storage at ambient temperature shows no loss of binding capacity or chemical degradation.
Safety & Handling (MSDS Summary)
• Classification: Non-hazardous.
• Dust: As with any organic powder, minimize dust generation to prevent potential explosion hazards in confined spaces.
• Storage: Store in a cool, dry, well-ventilated area. Keep bags sealed to prevent moisture absorption (caking).
Customer Comments
Plant Manager, Feed Mill, Australia
2026.02.05
★★★★☆
Formulation Chemist, Agrochemical Co., Brazil
2026.02.05
★★★★☆
Our Certificates
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Our Clients
Exhibitions
Meet Managers Shao Ting & Zhou Xueyan and our team at:
• VIV Asia (Bangkok)
• CAC (China International Agrochemical & Crop Protection Exhibition)
• EuroTier (Hanover)
CPHI & PMEC China 2025
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SupplySide West (Las Vegas)
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FAQ
What is the distinction between Lignosulfonate and Antacid Lignin?
Lignosulfonate is water-soluble at all pH levels and contains sulfur. Soluble base Lignin (our center item) is solvent primarily in soluble pH and has a higher carbon substance and lower sulfur, making it purer for particular chemical modifications.
Is this Lignin reasonable for human consumption?
Standard grades are for Bolster and Mechanical utilize. For food-grade applications (e.g., as a fiber source or antioxidant), it would be ideal if you ask almost our specialized "Nourishment Review Hydrolyzed Lignin" which experiences extra purification.
Can it be utilized in natural farming?
Yes, Lignin is a normal plant extricate. Depending on the particular directions of your nation (e.g., OMRI in the US), it is by and large allowed as a detailing help in natural agrarian inputs.
References
1.Lora, J.H., et al. (2002). "Mechanical and commercial applications of Lignin." Macromolecular Symposia.
2.Calvo-Flores, F.G., et al. (2015). "Lignin: Chemistry and Applications." Reference book of Polymeric Nanomaterials.
3.Arapakos, N., et al. (2002). "Lignin as a pellet folio in creature nourish." Creature Nourish Science and Technology.
4.Gargulak, J.D., et al. (2000). "Commercial utilize of Lignin-based materials." ACS Symposium Series.
5.Uptcher, S. (2009). "Toxicology and security of Lignin-derived items." Administrative Toxicology and Pharmacology.
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