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Product category

Agricultural Bentonite

Bentonite is used as a component of chemical and organic fertilizers and has an established place in fertilizer production.

Illustrative image

Main applications

  • Chemical fertilizers
  • Organic fertilizers
  • Granulation binder

Product forms

  • Powder
  • Granular

Packaging options

  • 25 kg bags
  • Big bags (jumbo bags)
  • Bulk supply on request

Technical data & laboratory analysis

Technical specifications

In agriculture and fertilizers, bentonite can be used as a binder, carrier and granule-supporting mineral additive in granular fertilizer production. Its physical and chemical properties are set according to the fertilizer formulation and production process.

ParameterControl criterion
Bentonite typeSodium or calcium depending on application
MoisturePer production process
Grain sizePowder or granule
pHTo be determined by analysis
Swelling capacityTo be determined by analysis
Cation exchange capacity (CEC)To be determined by analysis
MontmorilloniteBy XRD analysis
Bulk densityTo be determined by analysis
Granule binding performanceTo be tested in fertilizer formulation

Typical target values – subject to laboratory confirmation.

No single bentonite type suits every application. Sodium or calcium bentonite is selected according to the binding, swelling and granule strength the customer requires. If marketed as a fertilizer or soil conditioner, relevant regulations and product analyses must be checked separately.

Key features & applications

  • NPK fertilizer production
  • Organomineral fertilizer
  • Granular fertilizer production
  • Binder in fertilizer granules
  • Agricultural mineral additives
  • Soil conditioner formulations

Recommended laboratory tests

Moisture, pH, CEC, montmorillonite, particle size distribution, swelling capacity, bulk density and granule strength.

Laboratory analysis scope

Physical analysis

Moisture, grain size, bulk density

Mineralogical analysis

Montmorillonite and other clay minerals

Chemical analysis

SiO₂, Al₂O₃, Fe₂O₃, CaO, MgO, Na₂O, K₂O

Performance analysis

Product-specific absorption, swelling, filtration, binding or strength

Test standards

ASTM, API, ISO and customer specification

Quality documents

COA, TDS and SDS

Quality documents

Technical Data Sheet

Available on request

Safety Data Sheet

Available on request

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