Material Safety Data Sheet
Ashland Chemical Co. Date Prepared: 04/20/98
Date Printed: 06/28/99
MSDS No: 301.0323391-002.002I
BENTONITE (MONTMORILLONITE)
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1. CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
Material Identity
Product Name: BENTONITE (MONTMORILLONITE)
General or Generic ID: MONTMORILLONITE
Company Emergency Telephone Number:
Ashland Chemical Co. 1-800-ASHLAND (1-800-274-5263)
P.O. Box 2219 24 hours everyday
Columbus, OH 43216
614-790-3333 Regulatory Information Number:
1-800-325-3751
__________________________________________________________________________
2. COMPOSITION/INFORMATION ON INGREDIENTS
Ingredient(s) CAS Number % (by weight)
-------------------------------------------- ------------- -------------
BENTONITE 95.0- 98.0
CRYSTALLINE SILICA 14464-46-1 3.0- 5.0
__________________________________________________________________________
3. HAZARDS IDENTIFICATION
Potential Health Effects
Eye
Dust can cause eye irritation. Symptoms include stinging,
tearing, redness, and swelling of eyes.
Skin
May cause skin irritation. Symptoms may include redness, burning,
and swelling of skin.
Swallowing
Swallowing this material is not likely to be harmful.
Inhalation
This material is a dust or may produce dust. Breathing small
amounts of this material during normal handling is not likely to
cause harmful effects. Breathing large amounts may be harmful.
Symptoms of Exposure
Signs and symptoms of exposure to this material through breathing,
swallowing, and/or passage of the material through the skin may
include: mouth and throat irritation (soreness, dry or scratchy
feeling, cough).
Target Organ Effects
Overexposure to this material (or its components) has been
suggested as a cause of the following effects in humans: lung
damage.
Developmental Information
There are no data available for assessing risk to the fetus from
maternal exposure to this material.
Cancer Information
There is no information available. The chance of this material
causing cancer is unknown. This material is not listed as a
carcinogen by the International Agency for Research on Cancer, the
National Toxicology Program, or the Occupational Safety and Health
Administration.
Other Health Effects
This material can form dust which may cause skin or mucous
membrane irritation. Symptoms may include redness, burning, and
swelling. Although they may cause respiratory tract irritation,
nuisance dusts do not form scar tissue or affect the structure of
air spaces in the lungs. Their effects on the tissues are
potentially reversible. There is some evidence that breathing
respirable crystalline silica or the disease silicosis is
associated with an increased incidence of significant disease
endpoints such as scleroderma (an immune system disorder
manifested by fibrosis of the lungs, skin and other internal
organs) and kidney disease.
Primary Route(s) of Entry
Inhalation, Skin contact, Eye contact.
__________________________________________________________________________
4. FIRST AID MEASURES
Eyes
If symptoms develop, immediately move individual away from
exposure and into fresh air. Flush eyes gently with water for at
least 15 minutes while holding eyelids apart; seek immediate
medical attention.
Skin
Remove contaminated clothing. Wash exposed area with soap and
water. If symptoms persist, seek medical attention. Launder
clothing before reuse.
Swallowing
First aid is not normally required. If symptoms develop, seek
medical attention.
Inhalation
If symptoms develop, move individual away from exposure and into
fresh air. If symptoms persist, seek medical attention. If
breathing is difficult, administer oxygen. Keep person warm and
quiet; seek immediate medical attention.
Note to Physicians
Preexisting disorders of the following organs (or organ systems)
may be aggravated by exposure to this material: lung (for
example, asthma-like conditions), Silicosis predisposes the
individual to the development of tuberculosis. This is most
likely to occur after the age of 50 and in association with
moderate to severe silicosis.
__________________________________________________________________________
5. FIRE FIGHTING MEASURES
Flash Point
Not applicable
Explosive Limit
Not applicable
Autoignition Temperature
No data
Hazardous Products of Combustion
May form: carbon dioxide and carbon monoxide.
Fire and Explosion Hazards
Organic dusts can form explosive mixtures in air.
Extinguishing Media
regular foam, water fog, carbon dioxide, sand.
Fire Fighting Instructions
Wear a self-contained breathing apparatus with a full facepiece
operated in the positive pressure demand mode with appropriate
turn-out gear and chemical resistant personal protective
equipment. Refer to the personal protective equipment section of
this MSDS.
NFPA Rating
Health - 1, Flammability - 0, Reactivity - 0
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6. ACCIDENTAL RELEASE MEASURES
Small Spill
Sweep up material for disposal or recovery.
Large Spill
Shovel material into containers. Thoroughly sweep area of spill
to clean up any residual material.
__________________________________________________________________________
7. HANDLING AND STORAGE
Handling
Containers of this material may be hazardous when emptied. Since
emptied containers retain product residues (vapor, liquid, and/or
solid), all hazard precautions given in the data sheet must be
observed. Use good personal hygiene practices. Wash hands before
eating, drinking, smoking, or using toilet facilities. Promptly
remove soiled clothing and wash before reuse. Shower after work
using plenty of soap and water.
Storage
Store in a cool, dry place at 75 degrees F or lower.
__________________________________________________________________________
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Eye Protection
Wear safety glasses in compliance with OSHA regulations. (Consult
your safety representative.)
Skin Protection
Wear resistant gloves such as: latex.
Respiratory Protections
3M Dust respirator No. 8710 or 9900 is recommended or a NIOSH/MSHA
jointly approved dust respirator. (See your safety equipment
supplier.)
Engineering Controls
Provide sufficient mechanical (general and/or local exhaust)
ventilation to maintain exposure below level of overexposure (from
known, suspected or apparent adverse effects).
Exposure Guidelines
Component
----------
BENTONITE
No exposure limits established
CRYSTALLINE SILICA (14464-46-1)
OSHA VPEL 0.050 mg/m3 - TWA respirable dust
ACGIH TLV 0.050 mg/m3 - TWA
__________________________________________________________________________
9. PHYSICAL AND CHEMICAL PROPERTIES
Boiling Point
No data
Vapor Pressure
No data
Specific Vapor Density
No data
Specific Gravity
2.600 @ 77.00 F
Liquid Density
No data
Percent Volatiles
No data
Evaporation Rate
No data
Appearance
No data
State
SOLID
Physical Form
POWDER
Color
WHITE
Odor
ODORLESS
pH
9.5
Solubility in Water
MODERATE
__________________________________________________________________________
10. STABILITY AND REACTIVITY
Hazardous Polymerization
Product will not undergo hazardous polymerization.
Hazardous Decomposition
May form: carbon dioxide and carbon monoxide.
Chemical Stability
Stable.
Incompatibility
No data
__________________________________________________________________________
11. TOXICOLOGICAL INFORMATION
No data
__________________________________________________________________________
12. ECOLOGICAL INFORMATION
No data
__________________________________________________________________________
13. DISPOSAL CONSIDERATION
Waste Management Information
Dispose of with other normal, solid waste
__________________________________________________________________________
14. TRANSPORT INFORMATION
DOT Information - 49 CFR 172.101
DOT Description:
NON-REGULATED BY D.O.T.
Container/Mode:
55 GAL DRUM/TRUCK PACKAGE
NOS Component:
None
RQ (Reportable Quantity) - 49 CFR 172.101
Not applicable
__________________________________________________________________________
15. REGULATORY INFORMATION
US Federal Regulations
CERCLA RQ - 40 CFR 302.4(a)
None listed
CERCLA RQ - 40 CFR 302.4(b)
Materials without a "listed" RQ may be reportable as an
"unlisted hazardous substance". See 40 CFR 302.5 (b).
SARA 302 Components - 40 CFR 355 Appendix A
None
Section 311/312 Hazard Class - 40 CFR 370.2
Immediate( ) Delayed(X) Fire( ) Reactive( ) Sudden
Release of Pressure( )
SARA 313 Components - 40 CFR 372.65
None
International Regulations
Inventory Status
EINECS (EUROPE) The intentional ingredients of this product are
listed.
State and Local Regulations
California Proposition 65
The following statement is made in order to comply with the
California Safe Drinking Water and Toxic Enforcement Act of
1986: This product contains the following substance(s) known to
the state of California to cause cancer.
CRYSTALLINE SILICA
New Jersey RTK Label Information
SILICA, CRISTOBALITE 14464-46-1
Pennsylvania RTK Label Information
CRISTOBALITE (SIO2) 14464-46-1
__________________________________________________________________________
16. OTHER INFORMATION
The information accumulated herein is believed to be accurate but
is not warranted to be whether originating with the company or
not. Recipients are advised to confirm in advance of need that the
information is current, applicable, and suitable to their
circumstances.
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