=====================  Product Identification  =====================

MSDS NAME:CYCLOHEXANE SPECTROPHOTOMETRIC GRADE, C8517
NIIN:00N069759
MSDS Number: CBKTT
=== Responsible Party ===
Company:SIGMA CHEMICAL CO
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Info Phone Num:314-771-5765
Emergency Phone Num:516-467-3535
CAGE:21076
=== Contractor Identification ===
Company:SIGMA CHEMICAL COMPANY
Address:3050 SPRUCE ST
Box:14508
City:ST LOUIS
State:MO
ZIP:63178
Country:US
Phone:314-771-5765
CAGE:21076

=============  Composition/Information on Ingredients  =============

Name:CYCLOHEXANE (SARA 313) (CERCLA)
CAS:110-82-7
RTECS #:GU6300000
Fraction by Wt: 100%
OSHA PEL:300 PPM
ACGIH TLV:300 PPM
EPA Rpt Qty:1000 LBS
DOT Rpt Qty:1000 LBS

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:LD50(ORAL,RAT):12705 MG/KG
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:YES
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:ACUTE:HARMFUL IF INHALED OR SWALLOWED.
    VAPOR OR MIST IS IRRITATING TO THE EYES, MUCOUS MEMBRANES AND UPPER
    RESPIRATORY TRACT. CAUSES SKIN IRRITATION. EXPOSURE CAN CAUSE:LUNG
    IRRITATION, CHEST PAIN AND	EDEMA WHICH MAY BE FATAL.
    GASTROINTESTINAL DISTURBANCES. TARGET ORGAN(S):LUNGS, NERVES. ONLY
    (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZS:SELECTED REGISTRY OF TOXIC EFFECTS OF
    CHEMICAL SUBSTANCES (RTECS) DATA IS PRESENTED HERE. SEE ACTUAL
    ENTRY IN RTECS FOR COMPLETE INFORMATION.
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

=======================  First Aid Measures  =======================

First Aid:SKIN:IMMED WASH W/SOAP & COPIOUS AMTS OF WATER. WASH CONTAM
    CLTHG BEFORE REUSE. EYES:TREAT BY IMMED & PRLNGD IRRIGATION
    W/COPIOUS AMTS OF WATER FOR @ LST 15 MIN. ASSURE ADEQ FLUSHING BY
    SEPARATING LID S W/FINGERS. INHAL:REMOVE TO FRESH AIR.IF NOT BRTHG
    GIVE ARTF RESP. IF BRTHG IS DFCLT, GIVE OXYG. INGEST:WASH OUT MOUTH
    W/WATER PROVIDED PERSON IS CONSCIOUS. CALL MD.

=====================  Fire Fighting Measures  =====================

Flash Point:-1F,-18C
Lower Limits:1%
Upper Limits:9%
Extinguishing Media:CARBON DIOXIDE, DRY CHEMICAL POWDER OR APPROP FOAM.
    WATER MAY BE EFFECTIVE FOR COOLING, BUY MAY NOT EFT EXTINGUISHMENT.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA & FULL
    PROTECTIVE EQUIPMENT . USE WATER SPRAY TO COOL FIRE-EXPOSED
    CONTAINERS.
Unusual Fire/Explosion Hazard:EXTREMELY FLAMMABLE. VAPOR MAY TRAVEL
    CONSIDERABLE DISTANCE TO SOURCE OF IGNITION AND FLASH BACK.
    CONTAINER EXPLOSION MAY OCCUR UNDER FIRE CONDITIONS.

==================  Accidental Release Measures  ==================

Spill Release Procedures:EVACUATE AREA. SHUT OFF ALL IGNIT SOURCES.
    WEAR NIOSH/MSHA APPRVD SCBA, RUB BOOTS & HVY RUB GLOVES. COVER
    W/ACTIVATED CARBON ABSORB, TAKE UP & PLACE IN CLSD CNTNRS.
    TRANSPORT OUTDOORS. VENT AREA & WAS H SPILL SITE AFTER MATL PICKUP
    IS COMPLETE.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

======================	Handling and Storage  ======================

Handling and Storage Precautions:USE NONSPARKING TOOLS. DO NOT BREATHE
    VAPOR. DO NOT GET IN EYES, ON SKIN ON CLOTHING. IRRITANT. HARMFUL
    LIQUID. KEEP TIGHTLY CLOSED.
Other Precautions:KEEP AWAY FROM HEAT, SPARKS AND OPEN FLAME. STORE
    UNDER NITROGEN. STORE IN A COOL, DRY PLACE.

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:WEAR APPROPRIATE NIOSH/MSHA APPROVED RESPIRATOR.
Ventilation:MECHANICAL EXHAUST REQUIRED.
Protective Gloves:CHEMICAL-RESISTANT GLOVES.
Eye Protection:ANSI APPROVED CHEM WORKERS GOGGS .
Other Protective Equipment:ANSI APPROVED EMERGENCY EYE WASH AND DELUGE
    SHOWER  AND OTHER PROTECTIVE CLOTHING.
Work Hygienic Practices:WASH THOROUGHLY AFTER HANDLING.
Supplemental Safety and Health
VP:77 @ 20C, 168.8 @ 37.7C.

==================  Physical/Chemical Properties  ==================

Boiling Pt:B.P. Text:177F,81C
Melt/Freeze Pt:M.P/F.P Text:43.7F,6.5C
Vapor Pres:SUPP DATA
Vapor Density:2.9
Spec Gravity:0.779
Appearance and Odor:COLORLESS LIQUID.

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
OXIDIZING AGENTS.
Stability Condition to Avoid:NONE SPECIFIED BY MANUFACTURER.
Hazardous Decomposition Products:TOXIC FUMES OF:CARBON MONOXIDE, CARBON
    DIOXIDE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:BURN IN A CHEMICAL INCINERATOR EQUIPPED WITH AN
    AFTERBURNER AND SCRUBBER BUT EXERT CARE IN IGNITING AS THIS
    MATERIAL IS HIGHLY FLAMMABLE. OBSERVE ALL FEDERAL, STATE AND LOCAL
    ENVIRONMENTAL REGULATIONS .

 Disclaimer (provided with this information by the compiling agencies):
 This information is formulated for use by elements of the Department
 of Defense.  The United States of America in no manner whatsoever,
 expressly or implied, warrants this information to be accurate and
 disclaims all liability for its use.  Any person utilizing this
 document should seek competent professional advice to verify and
 assume responsibility for the suitability of this information to their
 particular situation.

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