Calcium lignosulfonate is a lignin-based binder, dispersant, and formulation aid used in fertilizer granulation, agriculture formulations, soil-related blends, feed binders, and selected industrial processing. China Lignin, the Agriculture Division of Green Agrochem, supplies calcium lignosulfonate grades for buyers who need stable powder handling, binding performance, dispersion support, packaging options, and export documentation.
For agriculture and fertilizer use, calcium lignosulfonate is commonly evaluated as a granulation binder, dust-reduction aid, dispersing support, and lignin-derived organic carbon component in formulation design. Suitability depends on product grade, dosage, fertilizer ingredients, moisture level, local requirements, and buyer-side application testing.
What is calcium lignosulfonate?
Calcium lignosulfonate is the calcium salt form of lignosulfonate, a water-soluble lignin derivative commonly associated with the sulfite pulping or lignin conversion process. It contains lignosulfonate molecules with calcium as the main cation and is valued for binding, dispersing, and processing-support behavior. Buyers comparing grades may also review sodium lignosulfonate, liquid lignosulfonate, and lignin.
Key properties
- Binding performance: supports granule, pellet, briquette, and powder-binding applications when the grade and dosage are selected correctly.
- Dispersing behavior: helps separate and suspend fine particles in selected water-based systems.
- Water solubility: suitable for many aqueous formulations, subject to grade, pH, and mineral compatibility.
- Calcium-containing lignosulfonate: useful where the calcium cation and lignin-derived chemistry fit the formulation target.
- Grade-dependent performance: solubility, lignosulfonate content, reducing sugar, moisture, ash, and calcium/magnesium content should be checked before ordering.
Product specification table
| Product name | Grade One | Grade Two | Grade Three |
| Product code | GAC-CaLS-1 | GAC-CaLS-2 | GAC-CaLS-3 |
| Appearance | Yellow Powder | Yellow Brown Powder | Yellow Brown Powder |
| Solubility | 98.5% min | 98% min | 97.5% min |
| Lignosulphonate | 55% min | 50% min | 50% min |
| Sulphate | 2% min | 2% min | 2% min |
| Water reducing capacity | 12% min | 5% min | 8% min |
| Reducing sugar | Around 7% | Around 7% | Around 7% |
| Calcium and magnesium | 5%-8% | 5%-8% | 5%-6% |
| Moisture | 7% max | 7% max | 7% max |
Exact specifications should be confirmed with the current TDS, COA, SDS, sample test result, and commercial contract. Different applications may require different calcium lignosulfonate grades.
Agriculture and fertilizer applications
| Application area | Potential function | Selection note |
| Fertilizer granulation | Binder for granule strength, dust reduction, and handling support | Test dosage, moisture, drying conditions, and nutrient compatibility |
| Soil-related formulations | Lignin-derived formulation component and organic carbon source in selected blends | Do not assume universal field performance; verify by formulation and local use context |
| Wettable powder and suspension systems | Dispersant or suspension support | Check water hardness, pH, particle size, and active ingredient compatibility |
| Micronutrient and mineral blends | Processing aid for selected mineral or trace-element systems | Evaluate compatibility with calcium, magnesium, trace elements, and other additives |
| Crop input granules or pellets | Binder or dust-control aid | Confirm crop safety, regulatory status, dusting behavior, and storage stability |
For application examples and buyer-oriented use cases, see calcium lignosulfonate uses. For production context, review lignosulfonate production.
Feed and industrial applications
Calcium lignosulfonate also has useful feed-binding and industrial application coverage. These uses are preserved as secondary content because many buyers compare agriculture, feed, construction, and processing requirements before sourcing.
| Use area | Common role | Buyer check |
| Animal feed pellets | Binder to support pellet durability and reduce dusting | Confirm grade, dosage, feed regulatory requirements, and livestock application suitability |
| Concrete and construction materials | Dispersant or water-reducing support in selected systems | Check cement compatibility, setting behavior, dosage, and standards |
| Soil stabilization and dust suppression | Binder or surface treatment aid | Evaluate rainfall exposure, water solubility, application rate, and local environmental requirements |
| Ceramic, pigment, and mineral processing | Dispersant, binder, or plasticizing aid | Check slurry viscosity, particle stability, color sensitivity, and drying behavior |
| Textile, coating, and industrial formulation systems | Dispersant or auxiliary processing ingredient | Confirm pH, water chemistry, dosage, compatibility, and performance testing |
Packaging and loading
Calcium lignosulfonate is commonly supplied as powder in export packaging suitable for container shipment. Packaging, bag weight, palletizing, moisture protection, and loading quantity should be confirmed before order according to grade, destination, and buyer handling requirements.
- Common package direction: 25 kg woven bags with liner inside, or buyer-approved export packaging.
- Documents to request: TDS, SDS, COA, packing list, invoice, and any application-specific test data available.
- Storage note: keep sealed, dry, and protected from moisture during storage and transport.
Related products
Buyers comparing lignosulfonate grades may also review sodium lignosulfonate, liquid lignosulfonate, magnesium lignosulfonate, and lignin.
FAQ
What is calcium lignosulfonate used for?
Calcium lignosulfonate is used as a binder, dispersant, and formulation aid in fertilizer granulation, agricultural formulations, animal feed pellets, concrete admixtures, dust suppression, ceramics, pigments, mineral systems, and selected industrial processing.
Can calcium lignosulfonate be used in fertilizer granulation?
Yes, it may be evaluated as a fertilizer granulation binder. Performance depends on the calcium lignosulfonate grade, dosage, fertilizer ingredients, moisture level, granulation method, drying conditions, and target granule strength.
Is calcium lignosulfonate suitable for soil-related products?
It can be considered as a lignin-derived formulation component in soil-related products, but the final result should be tested by grade, dosage, product design, local requirements, and field context. It should not be treated as a universal soil performance guarantee.
How is calcium lignosulfonate different from sodium lignosulfonate?
The main difference is the cation type. Calcium lignosulfonate contains calcium as the main cation, while sodium lignosulfonate contains sodium. Selection usually depends on solubility, formulation compatibility, application target, handling preference, and test results.
What documents should buyers request?
Buyers should request the current TDS, SDS, COA, sample details, packaging information, and any available application guidance for the intended fertilizer, feed, construction, or industrial formulation.
Inquiry CTA
Contact China Lignin for calcium lignosulfonate grade selection, sample support, SDS/TDS/COA documents, packaging details, and export quotation. Please share the target application, required form, dosage range, destination market, and any formulation compatibility limits.