DU PONT E I DE NEMOURS & CO INC -- FREON 502 REFRIGERANT  -- 6830-00-144-9952
<pre>=====================  Product Identification  =====================

Product ID:FREON 502 REFRIGERANT
MSDS Date:09/26/1991
FSC:6830
NIIN:00-144-9952
MSDS Number: BDCBJ
=== Responsible Party ===
Company Name:DU PONT E I DE NEMOURS & CO INC
Address:1007 MARKET ST
Box:1635
City:WILMINGTON
State:DE
ZIP:19898
Country:US
Info Phone Num:800-441-9450
Emergency Phone Num:800-441-3637,800-424-9300(CHEMTREC)
CAGE:18873
=== Contractor Identification ===
Company Name:E.I. DUPONT DE NEMOURS & CO
Address:1007 MARKET STREET
Box:City:WILMINGTON
State:DE
ZIP:19898
Country:US
Phone:800-441-7515;800-441-9442
CAGE:18873

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

Ingred Name:NO INGREDIENT FOR THIS FORMULATION_INGREDIENT

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

LD50 LC50 Mixture:LC50 RATS IS ESTIMATED AT 220,000 PPM
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INHALATION MAY CAUSE CNS DEPRESSION,
    ANESTHETIC EFFECTS, DIZZINESS, HEADACHE, CONFUSION, INCOORDINATION,
    UNCONSCIOUSNESS, ALTERATION OF HEART"S ELECTRICAL ACTIVITY WITH
    IRREGULAR PULSE, PALPITATIONS,  OR INADEQUATE CIRCULATION. DEATH
    FROM GROSS OVEREXPOSURE MAY OCCUR. SKIN/EYE CONTACT WITH LIQUID MAY
    CAUSE FROSTBITE.
Explanation of Carcinogenicity:NONE OF THE COMPONENTS OF THIS PRODUCT
    ARE LISTED AS CARCINOGENS BY NTP, IARC, OSHA.
Effects of Overexposure:INHALATION: CNS DEPRESSION, ANESTHETIC EFFECTS,
    DIZZINESS, HEADACHE, CONFUSION, INCOORDINATION, UNCONSCIOUSNESS,
    CARDIAC IRREGULARITIES, DEATH. EYES/SKIN: FROSTBITE.
Medical Cond Aggravated by Exposure:PERSON WITH PRE-EXISTING DISEASE
    INVOLVING THE CENTRAL NERVOUS SYSEM OR CARDIOVASCULAR SYSTEM MAY
    HAVE INCREASED SUSCEPTIBLITY TO THE TOXICITY OF EXCESSIVE
    EXPOSURES.

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

First Aid:EYES: FLUSH WITH LARGE AMOUNTS OF WATER. GET MEDICAL
    ATTENTION. SKIN: FLUSH WITH LARGE AMOUNTS OF WATER. TREAT FOR
    FROSTBITE BY GENTLY WARMING AFFECTED AREA. INHALATION: MOVE TO
    FRESH AIR. IF NOT BREA THING, GIVE CPR. IF BREATHING DIFFICULT,
    GIVE OXYGEN. GET MEDICAL ATTENTION. INGESTION: INGESTION IS NOT
    CONSIDERED A POTENTIAL ROUTE OF EXPOSURE.

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

Flash Point:NON-FLAMMABLE
Autoignition Temp:Autoignition Temp Text:????
Extinguishing Media:PRODUCT IS NON-FLAMMABLE. USE MEDIA APPROPRIATE FOR
    SURROUNDING MATERIALS.
Fire Fighting Procedures:IF CYLINDERS RUPTURE OR RELEASE UNDER FIRE
    CONDITIONS, WEAR SELF-CONTAINED BREATHING APPARATUS (SCBA).
Unusual Fire/Explosion Hazard:CYLINDERS ARE EQUIPPED WITH TEMPERATURE
    AND PRESSURE RELIEF DEVICES BUT STILL MAY RUPTURE UNDER FIRE
    CONDITIONS. DECOMPOSITION MAY OCCUR.

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

Spill Release Procedures:VENTILATE AREA, ESPECIALLY LOW PLACES WHERE
    HEAVY VAPORS MIGHT COLLECT. REMOVE OPEN FLAMES. USE SELF-CONTAINED
    BREATHING APPARATUS (SCBA) FOR LARGE SPILLS.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:STORE AWAY FROM OPEN FLAMES, HIGH
    TEMPERATURES.
Other Precautions:AVOID BREATHING VAPORS AND LIQUID CONTACT WITH SKIN.
    USE IN WELL VENTILATED AREA.

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

Respiratory Protection:NOT NORMALLY REQUIRED. SELF-CONTAINED BREATHING
    APPARATUS IS REQUIRED IF A SPILL OR RELEASE OCCURS.
Ventilation:NORMAL VENTILATION FOR STANDARD MANUFACTURING PROCEDURES IS
    GENERALLY ADEQUATE. LOCAL EXHAUST FOR LARGE RELEASES.
Protective Gloves:IMPERVIOUS GLOVES IF CONTACT POSSIBLE.
Eye Protection:SPLASH GOGGLES IF CONTACT POSSIBLE.
Other Protective Equipment:NONE SPECIFIED BY MANUFACTURER.
Work Hygienic Practices:AVOID BREATHING VAPORS AND LIQUID CONTACT WITH
    SKIN.
Supplemental Safety and Health

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

HCC:G3
Boiling Pt:B.P. Text:-50F,-45C
Vapor Pres:169 PSIA
Vapor Density:3.92 AIR=1
Spec Gravity:1.22
Evaporation Rate &amp; Reference:>1  CCL4=1
Solubility in Water:0.15%
Appearance and Odor:CLEAR,COLORLESS LIQUID
Percent Volatiles by Volume:100

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

Stability Indicator/Materials to Avoid:YES
ALKALI OR ALKALINE EARTH METALS - POWDERED ALUMINUM, ZINC, BERYLLIUM,
    ETC.
Stability Condition to Avoid:AVOID OPEN FLAMES AND HIGH TEMPERATURES.
Hazardous Decomposition Products:DECOMPOSITION PRODUCTS ARE HAZARDOUS.
    DECOMPOSITION PRODUCTS ARE HYDROCHLORIC ACID, HYDROFLUORIC
    ACIDS,CARBONYL HALIDES.

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

Waste Disposal Methods:DISPOSE OF WASTE IN ACCORDANCE WITH LOCAL, STATE
    AND FEDERAL REGULATIONS. RECLAIM BY DISTILLATION IF POSSIBLE.

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 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
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 particular situation.