It is a light or cream colored impalpable powder. There are two varieties: Sodium Bentonite; that it has great capacity of sponging in water and Calcium Bentonite; with negligible fluffing property.

It is a natural clay that contains a high portion of Montmorrillonite, a hydrated colloidal aluminum silicate of natural origin, in which some aluminum and silicon atoms may have been replaced by other atoms, such as magnesium, calcium and iron.


Chemical nameSodium bentonite
Chemical formulaSiO3*H2O

and uses

  • Oil well drilling muds
  • Binding agent in foundry sands
  • Channel Wall Cement
  • Cements for oil pipeline casings
  • Fat thickener
  • Cosmetics
  • Coloring agents
  • Food additive.


SubstancesQuantity (%) 
Silica (SiO2)56.05
Alumina (Al2O3)22.27
Iron (Fe2O33.81
Phosphorus (P2O50.17
Calcium (CaO) 2.40
Potassium (K2O)  1.12
Sodium (Na2O) 6.20
Losses at  100°C  7.94


Skin contact: Wash the affected area with soap and water.

Skin contact: Wash the affected area with soap and water.

Eye contact: Wash with plenty of water for 10 minutes. Consult a doctor.

Inhalation: Ventilate area. Evacuate the affected person to a well ventilated area. If symptoms persist check with your doctor.

In case of ingestion: Rinse mouth. (Large quantities: consult a doctor if discomfort persists.

Skin contact: Wash the affected area with soap and water.

Extinguishing media: Water, CO2, powder extinguishers (depending on fire). Non-flammable product.

Collection and cleaning procedures: Pick up mechanically. Clean the affected area with water.

Individual and collective precautions: Ensure good ventilation. Beware of the risk of slipping if the product comes into contact with water.

Cleaning method: Mechanically recover the maximum of the product in drums. Rinse the residue with plenty of water until it is completely removed (significant risk of slipping).

Precautions for environmental protection: Dilute with plenty of water before discharging into the sewer.

Handling: Ensure adequate ventilation at the handling site. Avoid dust formation. Do not drink or eat during handling.

Storage: Store in unopened, original container in a dry, well-ventilated place.

Respiratory protection: Wear mask with P3 filter.

Protection of hands: Wear gloves.

Eye protection: Wear safety glasses.

Exposure limits: TLV –TWA: 0.4 mg / m3 (crystalline silica, fraction <10 μm.

Other precautions: Provide an appropriate extraction system if necessary. Wash hands after work is done.

Acute toxicity: Non-toxic

Non-dangerous product according to Directive 67/548 / EEC.
Product without inconvenience for ecology.