BENTONITE (ICSC)

BENTONITE	ICSC: 0384

Date of Peer Review: May 2010

Wilkinite
Montmorillonit

CAS #	1302-78-9
RTECS #	CT9450000
UN #
EC/EINECS #	215-108-5

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Not combustible.		In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

EXPOSURE		PREVENT DISPERSION OF DUST!
Inhalation	Cough.	Avoid inhalation of dust. Local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Safety goggles or eye protection in combination with breathing protection.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion		Do not eat, drink, or smoke during work.

SPILLAGE DISPOSAL

PACKAGING & LABELLING

Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Wash away remainder with plenty of water.

GHS Classification
Danger
Causes damage to lungs through prolonged or repeated exposure if inhaled

EMERGENCY RESPONSE

STORAGE

Dry.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities © IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK

BENTONITE

ICSC: 0384

IMPORTANT DATA

PHYSICAL STATE; APPEARANCE:
GREY TO WHITE POWDER OR LUMPS.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established. MAK not established.

ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is mildly irritating to the eyes and the skin.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the lungs , resulting in fibrosis (see ICSC 0808).

PHYSICAL PROPERTIES

Melting point: > 1200°C
Relative density (water = 1): 2.5
Solubility in water: none

ENVIRONMENTAL DATA

NOTES

Bentonite is aluminium silicate and contains crystalline silica. The content varies widely from less than 1 % to about 60 %. Bentonite is a rock formed of highly colloidal and plastic clays composed mainly of montmorillonite.

ADDITIONAL INFORMATION

LEGAL NOTICE

Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information

    See Also:
       Toxicological Abbreviations
       BENTONITE (JECFA Evaluation)