Product ID:HEXANE
MSDS Date:04/27/2000
FSC:6810
NIIN:00-949-0257
Status Code:A
MSDS Number: CKTTR

VALERO ENERGY CORPORATION

530 MCCULLOUGH AVE
SAN ANTONIO, TX 78205
US

Emergency Phone: 713-923-6641

Info Phone: 512-246-2000

Cage: 0CC42

WAITE R M CO

OAKLAND, CA 94606 US

Telephone: 510-535-1266

Cage: 0V485

N-HEXANE

CAS: 110-54-3

RTECS: MN9275000

OSHA PEL 1800 MG/M3;500 PPM

EPA Report Quantity: 1 LB

DOT Report Quantity: 1 LB

HEXANES (ALL ISOMERS) (MIXTURE)

METHYLCYCLOPENTANE

CAS: 96-37-7

RTECS: GY4640000

N-PENTANE

CAS: 109-66-0

RTECS: RZ9450000

Fraction By Weight: < 1-2%

OSHA PEL 2950 MG/M3;1000 PPM

ACGIH TLV: 1770 MG/M3;600 PPM

LD50 LC50 Mixture:NO DATA PROVIDED FOR MIXTURE AS A WHOLE
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:TARGET ORGANS: RESPIRATORY SYSTEM,
SKIN. EYE: MAY CAUSE SEVERE IRRITATION. SKIN: PROLONGED OR REPEATED
CONTACT MAY CAUSE MODERATE IRRITATION, DERMATITIS, POSSIBLE
SECONDARY INFECTION & PERIPHERAL NERV E DAMAGE. HIGH PRESSURE SKIN
INJECTIONS ARE SERIOUS MEDICAL EMERGENCIES. INHALATION: NASAL &
RESPIRATORY TRACT IRRITATION, PERIPHERAL NERVE DAMAGE, & CENTRAL
NERVOUS SYSTEM EFFECTS, RESPIRATORY ARRES T & DEATH. INGESTION: MAY
BE HARMFUL OR FATAL IF SWALLOWED. DO NOT INDUCE VOMITING! MAY CAUSE
GI DISTURBANCES, CNS DEPRESSION. ASPIRATION INTO LUNGS CAN CAUSE
SEVERE CHEMICAL PNEUMONITIS OR PULMONARY EDEMA/HEMORRHAGE, WHICH
CAN BE FATAL.
Explanation of Carcinogenicity:PRODUCT LISTED AS A CARCINOGEN OR
POTENTIAL CARCINOGEN BY: NTP-NO; IARC-NO; OSHA-NO; OTHER-NO.
Effects of Overexposure:EYE: MAY CAUSE SEVERE IRRITATION, REDNESS,
TEARING, BLURRED VISION & CONJUNCTIVITIS. SKIN: PROLONGED OR
REPEATED CONTACT MAY CAUSE MODERATE IRRITATION, DEFATTING
(CRACKING), REDNESS, ITCHING, INFLAMMA TION, DERMATITIS, POSSIBLE
SECONDARY INFECTION & PERIPHERAL NERVE DAMAGE. HIGH PRESSURE SKIN
INJECTIONS, WITHIN A FEW HOURS, TISSUES WILL BECOME SWOLLEN,
DISCOLORED & EXTREMELY PAINFUL. INHALATION: NA SAL & RESPIRATORY
TRACT IRRITATION, CNS EFFECTS INCLUDING EXCITATION, EUPHORIA,
HEADACHE, DIZZINESS, LOSS OF COORDINATION. INGESTION: CNS EFFECTS
SIMILAR TO INHALATION, DIARRHEA, NAUSEA, VOMITING.
Medical Cond Aggravated by Exposure:PREEXISTING EYE, SKIN, HEART,
CENTRAL NERVOUS SYSTEM AND RESPIRATORY DISORDERS MAY BE AGGRAVATED
BY EXPOSURE TO THIS PRODUCT.

First Aid:EYE: FLUSH IMMEDIATELY WITH LOTS OF WATER FOR AT LEAST 15
MINUTES. LIDS SHOULD BE HELD AWAY FROM THE EYE. SEEK MEDICAL ADVICE
IF PAIN OR REDNESS CONTINUES. SKIN: WASH THOROUGHLY WITH SOAP &
WATER. RE MOVE CONTAMINATED CLOTHING PROMPTLY. IF IRRITATION
PERSIST OR SYMPTOMS DESCRIBED IN THE MSDS DEVELOP, SEEK MEDICAL
ATTENTION. HIGH PRESSURE SKIN INJECTIONS ARE SERIOUS MEDICAL
EMERGENCIES. GET IMMEDIA TE MEDICAL ATTENTION. SLIGHT INHALATION:
REMOVE TO FRESH AIR. IF BREATHING IS DIFFICULT, ENSURE CLEAR AIRWAY
& GIVE OXYGEN. INGESTION: DO NOT INDUCE VOMITING! GIVE VEGATABLE
OIL OR CHARCOAL SLURRY. SE EK IMMEDIATE MEDICAL ATTENTION.

Flash Point:=-21.5C, -7.F
FLAMMABLE
Autoignition Temp:=225.C, 437.F
Lower Limits:1.1%
Upper Limits:7.5%
Extinguishing Media:FLAMMABLE LIQUID. USE DRY CHEMICAL, FOAM OR CARBON
DIOXIDE TO EXTINGUISH THE FIRE. CONSULT FOAM MANUFACTURER FOR
APPROPRIATE MEDIA, APPLICATION RATES AND WATER/FOAM RATIO.
Fire Fighting Procedures:WATER CAN BE USED TO COOL FIRE-EXPOSED
CONTAINERS, STRUCTURES & TO PROTECT PERSONNEL. IF A LEAK OR SPILL
HAS NOT IGNITED, VENTILATE AREA & USE WATERSPRAY TO DISPERSE GAS
OR VAPOR & TO PROTECT PERSONN EL ATTEMPTING TO STOP A LEAK. USE
WATER TO FLUSH SPILL AWAY FROM SOURCES OF IGNITION. DO NOT FLUSH
DOWN PUBLIC SEWERS.
Unusual Fire/Explosion Hazard:DANGEROUS WHEN EXPOSED TO HEAT OR FLAME.
VAPORS FORM FLAMMABLE OR EXPLOSIVE MIXTURES WITH AIR AT ROOM
TEMPERATURE. VAPOR OR GAS MAY SPREAD TO DISTANT IGNITION SOURCES
(PILOT LIGHTS, WELDING EQUIPMENT, ELECTRICAL EQUIPMENT, ETC.) &
FLASH BACK. VAPORS MAY ACCUMULATE IN LOW AREAS. VAPORS MAY
CONCENTRATE IN CONFINED AREAS.

Spill Release Procedures:IF FACILITY OR OPERATION HAS AN "OIL OR
HAZARDOUS SUBSTANCE CONTINGENCY PLAN", ACTIVATE ITS PROCEDURES.
STAY UPWIND & AWAY FROM SPILL. WEAR APPROPRIATE PROTECTIVE
EQUIPMENT INCLUDING RESPIRATORY PROTE CTION AS CONDITIONS WARRANT.
DO NOT ENTER OR STAY IN AREA UNLESS MONITORING INDICATES THAT IT IS
SAFE TO DO SO. ISOLATE HAZARD AREA & RESTRICT ENTRY TO EMERGENCY
CREW. EXTREMELY FLAMMABLE. (SEE OTHER)
Neutralizing Agent:NO DATA PROVIDED BY RESPONSIBLE PARTY.

Handling and Storage Precautions:STORE IN TIGHTLY CLOSED CONTAINERS IN
COOL, DRY, ISOLATED & WELL VENTILATED AREA AWAY FROM HEAT, SOURCES
OF IGNITION & INCOMPATIBLE MATERIALS. USE NON-SPARKING TOOLS &
EXPLOSION PROOF EQUIPMENT. GROU ND LINES, CONTAINERS, & OTHER
EQUIPMENT USED DURING PRODUCT TRANSFER.
Other Precautions:TANKS, VESSELS OR OTHER CONFINED SPACES WHICH HAVE
CONTAINED PRODUCT SHOULD BE FREED OF VAPORS BEFORE ENTERING. THE
CONTAINER SHOULD BE CHECKED TO ENSURE A SAFE ATMOSPHERE BEFORE
ENTRY. EMPTY CONTAINE RS MAY CONTAIN TOXIC, FLAMMABLE/COMBUSTIBLE
OR EXPLOSIVE RESIDUES OR VAPORS. DO NOT CUT, GRIND, DRIL L, WELD OR
REUSE

Respiratory Protection:IF WORKPLACE EXPOSURE LIMIT FOR PRODUCT OR
COMPONENTS ARE EXCEEDED, NIOSH EQUIPMENT SHOULD BE WORN. PROPER
RESPIRATOR SELECTION SHOULD BE DETERMINED BY ADEQUATELY TRAINED
PERSONNEL, BASED ON THE CONTA MINANTS, THE DEGREE OF POTENTIAL
EXPOSURE AND PUBLISHED RESPIRATORY PROTECTION FACTORS. THIS
EQUIPMENT SHOULD BE AVAILABLE FOR NONROUTINE AND EMERGENCY USE.
Ventilation:AVOID BREATHING MISTS & VAPOR. USE IN WELL-VENTILATED AREA.
IN CONFINED SPACE, MECHANICAL VENTILATION MAY BE NECESSARY TO
REDUCE VAPOR CONCENTRATIONS
Protective Gloves:SKIN CONTACT CAN BE MINIMIZED BY WEARING PROTECTIVE
GLOVES SUCH AS NEOPRENE,
Eye Protection:EYE CONTACT CAN BE AVOIDED BY WEARING SAFETY GLASSES OR
CHEMICAL SPLASH GOGGLES
Other Protective Equipment:WHERE NECESSARY, IMPERVIOUS CLOTHING AND
BOOTS. A SOURCE OF CLEAN WATER SHOULD BE AVAILABLE IN THE WORK AREA
FOR FLUSHING EYES AND SKIN.
Work Hygienic Practices:KEEP AWAY FROM EYES. KEEP AWAY FROM SKIN.
LEATHER GOODS CONTAMINATED WITH THIS PRODUCT SHOULD BE DISCARDED.
Supplemental Safety and Health
NOTE TO PHYSICIAN: IN CASE OF INGESTION, GASTRIC LAVAGE WITH ACTIVATED
CHARCOAL CAN BE USED PROMPTLY TO PREVENT ABSORPTION. CONSIDERATION
SHOULD BE GIVEN TO THE USE OF AN INTRATRACHEAL TUBE, TO PREVEN T
ASPIRATION. IRREGULAR HEART BEAT MAY OCCUR, USE OF ADRENALIN IS NOT
ADVISABLE.

HCC:F2
Boiling Pt:=68.3C, 155.F
Vapor Pres:52 MM HG I@100F
Vapor Density:3 (AIR=1)
Spec Gravity:0.66@60F
Evaporation Rate & Reference:NOT AVAILABLE
Solubility in Water:NEGLIGIBLE(<0.1%)
Appearance and Odor:COLORLESS LIQUID. SWEETISH. HYDROCARBON ODOR.
Percent Volatiles by Volume:100%

Stability Indicator/Materials to Avoid:YES
STRONG OXIDIZING AGENTS (PEROXIDE, DICHROMATE, PERMANGANATE, CHLORINE,
ETC.), STRONG ACIDS, CAUSTICS AND HALOGENS.
Stability Condition to Avoid:HEAT, SPARKS, OPEN FLAME, STATIC
ELECTRICITY OR ANY OTHER POTENTIAL IGNITION SOURCES SHOULD BE
AVOIDED. PREVENT VAPOR ACCUMULATION. DO NOT SWITCH LOAD.
Hazardous Decomposition Products:COMBUSTION MAY PRODUCE CARBON
MONOXIDE, CARBON DIOXIDE, REACTIVE HYDROCARBONS (ALDEHYDES,
AROMATICS, ETC).
Conditions to Avoid Polymerization:WILL NOT OCCUR.

Waste Disposal Methods:DISPOSE OF MATERIAL IN ACCORDANCE WITH LOCAL,
COUNTY, STATE AND FEDERAL REGULATIONS. CONTACT STATE AND FEDERAL
REGULATORS TO DETERMINE WHETHER THE MATERIAL SHOULD BE CLASSIFIED
AS A HAZARDOUS WASTE OR INDUSTRIAL WASTE AND HANDLED ACCORDINGLY.
USE LICENSED TRANSPORTER AND DISPOSAL FACILITY.

Toxicological Information:N-HEXANE CAN AFFETC THE BODY IF IT IS
INHALED, COMES IN CONTACT WITH EYES OR SKIN, OR IS SWALLOWED.
POLYNEUROPATHY HAS BEEN REPORTED TO OCCUR TO WORKERS EXPOSED TO
HEXANE VAPORS. IN INDUSTRIAL PRACTIC E, MILD NARCOTIC SYMPTOMS SUCH
AS DIZZESS, HAVE BEEN OBSERVED WHEN CONCENTRATIONS EXCEEDED 1000
PPM BUT NOT BELOW 500 PPM. HEXANE ISOMERS IS THRICE AS TOXIC AS
PENTANE TO MICE. NARCOSIS PRODUCED IN MI CE WITHIN 30-60 MINUTES AT
CONCENTRATIONS OF 30,000 PPM. IN MAN, CONCENTRATIONS FOR 10 MINUTES
AT 2000 PPM PRODUCED NO SEFFECTS. PENTANE CAN AFFECT THE BODY IF IT
IS INHALED, OMES IN CONTACT WITH EYES , SKIN OR IS SWALLOWED.

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.

Ecological:NO DATA PROVIDED BY RESPONSIBLE PARTY.

Transport Information:DOT PROPER SHIPPING NAME: HEXANES. DOT HAZARD
CLASS: 3, FLAMMABLE LIQUID. DOT IDENTIFICATION NUMBER/PACKAGING
GROUP: UN1208, PG II. REPORTABLE QUANTITY: HEXANE-5000 LB.MARINE
POLLUTANT: NO.

SARA Title III Information:SECTION 302/304 EXTREMELY HAZARDOUS
SUBSTANES: NONE. SECTION 311/312 HAZARD CATEGORY: ACUTE, CHRONIC,
FIRE. SARA TITLE III (SECTION 313): N-HEXANE, 95% MINIMUM. TSCA: ON
THE TSCA LIST.
Federal Regulatory Information:CERCLA/SUPERFUND: COMPREHENSIVE
ENVIRONMENTAL RESPONSE, COMPENSATION AND LIABILITY ACT OF 1980
(CERCLA) REQUIRES NOTIFICATION OF THE NATIONAL RESPONSE CENTER OF
RELEASE OF QUANTITIES OF HAZARDOUS SUBS TANCES EQUAL OR GREATER
THAN THE REPORTABLE QUANTITIES (RQ) IN 40 CFR 302.4. OSHA HAZARD
DETERMINATION: THIS MATERIAL IS AHZARDOUS AS DEFINED BY OSHA'S
HAZARD COMMUNICATION STANDARD 29 CFR 1910.1200. PROTECTION OF
STRATOSPHERIC OZONE: (PURSUANT TO SECTION 611 OF THE CLEAN AIR ACT
AMENDMENTS OF 1990) ; PER 40 CFR PART 82 THIS PRODUCT DOES NOT
CONTAIN NOR WAS IT DIRECTLY MANUFACTURED WITH CLASS 1 OR II OZONE
DEPLETING CHEMICALS.
State Regulatory Information:STATE RIGHT-TO-KNOW REGULATIONS: 1)
N-HEXANE: CT, FL, IL, MA, NJ, PA, RI.CALIFORNIA PROPOSITION 65:
THIS PRODUCT CONTAINS THE FOLLOWING CHEMICALS FOR WHICH THE STATE
OF CALIFORNIA HAS FOUND TO CAUSE C ANCER, BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM, WHICH WOULD REQUIRED A WARNING UNDER THE STAUTE:
BENZENE, TOLUENE.