- Sodium montmorillonite
- Hydrated sodium calcium aluminum silicate
- Sodium bentonite
Odorless, multi-colored powder.
Used to slow the progress of water through soil or rocks; Used in drilling muds to give the water greater viscosity; Used to produce nanocomposites: Used as an absorbent to purify and decolor liquids; Used as a filler in paper and rubber; and used as a base for cosmetics and medicines
Registry Numbers and Inventories.
S 24/25 28A 37 45
Japan ENCS (MITI)
Solubility in water
Hazards and Protection.
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
Wear general duty work gloves. If high dust conditions exist, tight fitting goggles are recommended.
If the exposure limit is exceeded, a half-face dust/mist respirator may be worn for up to ten times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. A full-face piece dust/mist respirator may be worn up to 50 times the exposure limit, or the maximum use concentration specified by the appropriate regulatory agency, or respirator supplier, whichever is lowest. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-pressure, air-supplied respirator. WARNING: Air-purifying respirators do not protect workers in oxygen-deficient atmospheres.
If uncontaminated, sweep up or collect, and reuse product. Product becomes slippery when wet.
Use any means suitable for extinguishing surrounding fire. Use protective clothing and breathing equipment appropriate for the surrounding fire.
NIOSH PEL 0.05 mg/m3
Extremely large oral dosages may produce gastrointestinal disturbances including nausea, vomiting and diarrhea.
Breathing prolonged and excessive amounts of Bentonite dust may not cause noticeable injury or illness even though permanent lung damage may be occurring. Causes irritation to the lungs.
If swallowed, DO NOT INDUCE VOMITING. Give large quantities of water. Never give anything by mouth to an unconscious person. SEEK MEDICAL ATTENTION.
Move to fresh air. If not breathing, administer artificial respiration. If breathing is difficult, give oxygen. SEEK MEDICAL ATTENTION.
Immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Immediately flush eyes with copious amounts of water. If irritation develops, SEEK MEDICAL ATTENTION.