MATHESON TRI-GAS, INC -- NITROGEN, REFRIGERATED LIQUID  -- -
<pre>=====================  Product Identification  =====================

Product ID:NITROGEN, REFRIGERATED LIQUID
MSDS Date:04/15/1993
FSC:NIIN:Submitter:D DG
Status Code:A
=== Responsible Party ===
Company Name:MATHESON TRI-GAS, INC
Address:6225 N. STATE HWY 161 SUITE 200
City:IRVING
State:TX
ZIP:75038
Country:US
Info Phone Num:972-870-7000
Emergency Phone Num:800-424-9300
Chemtrec Ind/Phone:(800)424-9300
CAGE:UO244
=== Contractor Identification ===
Company Name:MATHESON TRI-GAS, INC
Address:6225 N. STATE HWY 161 SUITE 200
Box:City:IRVING
State:TX
ZIP:75038
Country:US
Phone:972-870-7000
CAGE:UO244

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

Ingred Name:NITROGEN, REFRIGERATED LIQUID
CAS:7727-37-9
RTECS #:QW9700000
= Wt:100.

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

Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INHALATION: SIMPLE ASPHXIANTS.
    NITROGEN INHALED UNDER INCREASED ATMOSPHERIC PRESSURE, (>1.5
    ATMOSPHERES), MAY DISSOLVE IN THE FAT-CONTAINING BRAIN CELLS, AND
    ACT AS AN ANESTHETIC, CAUSING NARCOSIS. PE RSONS WHO HAVE BEEN
    EXPOSED TO INCREASED PRESSURE FOR A TIME AND WHO ARE SUDDENLY
    RELEASED FROM THE PRESSURE MAY DEVELOP DECOMPRESSION SICKNESS.
    REPEATED EXPOSURE, WITHOUT COMPLETE DECOMPRESSION, MAY  RESULT IN
    DECOMPRESSION SICKNESSS. ACUTE EXPOSURE: SYMPTOMS OF ASPHYXIA
    DEPEND ON THE RAPIDITY WITH WHICH THE OXYGEN DEFICIENCY DEVELOPS
    AND HOW LONG IT CONTINUES. IN SUDDEN ACUTE ASPYXIA, UNCONSCIOUS
    NESS MAY BE (CONTD. SEE "TOXICOLOGICAL")
Explanation of Carcinogenicity:CARCINOGEN STATUS: NONE.
Effects of Overexposure:INHALATION: NARCOSIS, PERSONS EXPOSED TO
    INCREASED PRESSURE FOR A TIME AND SUDDENLY RELEASED FROM PRESSURE:
    DECOMPRESSION SICKNESS. SYMPTOMS OF ASPHYXIA: UNCONSCIOUSNESS,RAPID
    RESPIRATION AND PULSE, A IR UNGER, DIZZINESS, REDUCED AWARENESS,
    TIGHTNESS IN THE HEAD, TINGLING SENSATIONS, INCOORDINATION, FAULTY
    JUDGEMENT, EMOTIONAL INSTABILITY, RAPID FATIGUE, NAUSEA, VOMITING,
    COLLAPSE, UNCONSCIOUSNESS,	CONVULSIONS, DEEP COMA, AND DEATH. SKIN
    CONTACT: LIQUID MAY CAUSE FROSTBITE, REDNESS, TINGLING, PAIN,
    NUMBNESS, HARDNESS OF SKIN, TURN WHITE, DEVELOP BLISTERS.  EYE
    CONTACT: (CONTD. SEE "SARA I I I")

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

First Aid:INHALATION: REMOVE TO FRESH AIR IMMEDIATELY. IF BREATHING HAS
    STOPPED, GIVE ARTIFICIAL RESPIRATION. MAINTAIN AIRWAY AND BLOOD
    PRESSURE AND ADMINISTER OXYGEN IF AVAILABLE. KEEP AFFECTED PERSON
    WARM AND  AT REST. TREAT SYMPTOMATICALLY AND SUPPORTIVELY.
    ADMINISTRATION OF OXYGEN SHOULD BE PERFORMED BY QUALIFIED
    PERSONNEL. GET MEDICAL ATTENTION IMMEDIATELY. SKIN: IT IS UNLIKELY
    THAT EMERGENCY TREATMENT  WILL BE REQUIRED. IF ADVERSE EFFECTS
    OCCUR, GET MEDICAL ATTENTION. IN CASE OF FROSTBITE, WARM AFFECTED
    SKIN IN WARM WATER AT A TEMPERATURE OF 107F. IF WARM WATER IS
    (CONTD. SEE "FEDERAL REGULATORY")

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

Extinguishing Media:MATERIAL IS NONFLAMMABLE, NITROGEN NEITHER BURNS
    NOR SUPPORTS COMBUSTION. USE EXTINGUISHING MEDIA APPROPRIATE FOR
    SURROUNDING FIRE.
Fire Fighting Procedures:NONE, NITROGEN WILL ACT AS A SIMPLE
    ASPHYXIANT, IT DISPLACES OXYGEN. LIQUID NITROGEN WHEN SPILLED WILL
    VAPORIZE RAPIDLY CAUSING A VAPOR CLOUD THAT WILL CREATE AN
    OXYGEN-DEFICIENT ATMOSPHERE, EVACUATE  THE AREA OF THIS VAPOR CLOUD
    UNLESS WEARING SELF-CONTAINED BREATHING APPARATUS.
Unusual Fire/Explosion Hazard:CONTACT WITH COLD LIQUID OR GASEOUS
    NITROGEN MAY CAUSE FROSTBITE. VISIBILITY MAY BE OBSCURED IN THIS
    VAPOR CLOUD.

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

Spill Release Procedures:STOP LEAK IF YOU CAN DO IT WITHOUT RISK. KEEP
    UNNECESSARY PEOPLE AWAY; ISOLATE HAZARD AREA AND DENY ENTRY.

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

Handling and Storage Precautions:OBSERVE ALL FEDERAL, STATE, AND LOCAL
    REGULATIONS WHEN STORING THIS SUBSTANCE. FOR ASSISTANCE, CONTACT
    THE DISTRIC DIRECTOR OF THE ENVIRONMENTAL PROTECTION AGENCY. STORE
    IN ACCORDANCE WITH 29 CFR 1910 .101. STORE AWAY FROM INCOMPATIBLE
    SUBSTANCES.
Other Precautions:DO NOT PERMIT PHYSICAL DAMAGE OR OVERHEATING OF
    CONTAINERS. CONTENTS ARE UNDER PRESSURE; CONTAINERS MAY VIOLENTLY
    RUPTURE AND TRAVEL A CONSIDERABLE DISTANCE.

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

Respiratory Protection:THE SPECIFIC RESPIRATOR SELECTED MUST BE BASED
    ON CONTAMINATION LEVELS FOUND IN  WORK PLACE, MUST NOT EXCEED THE
    WORKING LIMITS OF THE RESPIRATOR AND BE JOINTLY APPROVED BY
    NIOSH-MSHA. USE ANY SUPPLIE D AIR RESPIRATOR OPERATED IN
    PRESSURE-DEMAND OR OTHER POSITIVE PRESSURE MODE OR ANY SCBA. SCBA
    WITH FULL FACEPIECE OPERATED IN  (CONTD. SEE "OTHER INFORMATION")
Ventilation:PROVIDE GENERAL DILUTION VENTILATION.
Protective Gloves:WEAR FULL PROTECTIVE, COLD INSULATING GLOVES.
Eye Protection:FOR THE GAS FORM EYE PROTECTION IS NOT REQUIRED BUT
    RECOMMENDED.
Other Protective Equipment:FOR THE GAS FORM, PROTECTIVE CLOTHING NOT
    REQUIRED. IF CONTACT WITH LIQUID FORM IS POSSIBLE, EMPLOYEE MUST
    WEAR APPROPRIATE PROTECTIVE CLOTHING AND EQUIPMENT TO PREVENT SKIN
    FROM FREEZING.
Work Hygienic Practices:WHERE THERE IS ANY POSSIBILITY OF CONTACT WITH
    THE LIQUID FORM, EMPLOYEE MUST WEAR SPLASH-PROOF SAFETY GOGGLES AND
    A FACESHIELD TO PREVENT CONTACT WITH THIS SUBSTANCE. CONTACT LENSES
    SHOULD NOT BE WORN.
Supplemental Safety and Health
WHERE THERE IS ANY POSSIBILITY THAT AN EMPLOYEE'S EYES AND /OR SKIN MAY
    BE EXPOSED TO THE LIQUID FORM OF THIS SUBSTANCE, THE EMPLOYER
    SHOULD PROVIDE AN EYE WASH FOUNTAIN AND QUICK DRENCH SHOWER WITHIN 
    THE IMMEDIATE WORK AREA FOR EMERGENCY USE.

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

HCC:G3
Boiling Pt:=-206.7C, -340.4F
B.P. Text:@1 ATM
Melt/Freeze Pt:=-210.C, -346.F
Spec Gravity:0.8083 @B.P @1 ATM
Appearance and Odor:ODORLESS, COLORLESS, CRYOGENIC LIQUID.

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

Stability Indicator/Materials to Avoid:YES
LITHIUM, (IGNITES IN NITROGEN GAS); MAGNESIUM, (REACTS VIOLENTLY WITH
    LIQUID NITROGEN ON IGNITION);  NEODYMIUM, (VIGOROUS REACTION);
    OZONE, (MIXTURES OF THE GASES MAY BE EXPLOSIVE); TITANIUM, (WILL
    BURN IN NITROGEN ATMOSPHE
Stability Condition to Avoid:STABLE UNDER NORMAL TEMPERATURES AND
    PRESSURES.
Hazardous Decomposition Products:THERMAL DECOMPOSITION PRODUCTS MAY
    INCLUDE TOXIC OXIDES OF NITROGEN.
Conditions to Avoid Polymerization:HAS NOT BEEN REPORTED TO OCCUR UNDER
    NORMAL TEMPERATURES AND PRESSURES.

===================  Toxicological Information	===================

Toxicological Information:(CONTD. FROM "HEALTH HAZARDS") IMMEDIATE.
    WITH SLOW DEVELOPMENT THERE MAY BE RAPID RESPIRATION AND PULSE ,
    AIR HUNGER, DIZZINESS, REDUCED AWARENESS, TIGHTNESS IN THE HEAD,
    TINGLING SENSATIONS, INCOORD INATION, FAULTY JUDGEMENT, EMOTIONAL
    INSTABILITY, AND RAPID FATIGUE. AS THE ASPHYXIA PROGRESSES, NAUSEA,
    VOMITING, COLLAPSE, UNCONSCIOUSNESS, CONVULSIONS, DEEP COMA AND
    DEATH ARE POSSIBLE. CHRONIC: NO  DATA AVAILABLE. SKIN CONTACT:
    ACUTE: NO ADVERSE EFFECTS HAVE BEEN REPORTED FROM THE GAS. DUE TO
    RAPID EVAPORATION, THE LIQUID MAY CAUSE FROSTBITE WITH REDNESS,
    TINGLING, AND OR (CONTD. SEE "ECOLOGICA L")

=====================  Ecological Information  =====================

Ecological:(CONTD. FROM "TOXICOLOGICAL") NUMBNESS. IN MORE SEVERE
    CASES, THE SKIN MAY  BECOME HARD AND WHITE AND DEVELOP BLISTERS.
    CHRONIC: NO ADVERSE EFFECTS REPORTED. EYE CONTACT: ACUTE: MAY CAUSE
    IRRITATION I F SPRAYED DIRECTLY INT THE EYES. DUE TO RAPID
    EVAPORATION, THE LIQUID MAY CAUSE FROSTBITE WITH REDNESS, PAIN, AND
    BLURRED VISION. CHRONIC: NO ADVERSE EFFECTS REPORTED. INGESTION:
    ACUTE: INGESTIONOF TH E GAS IS UNLIKELY. IF THE LIQUID IS
    SWALLOWED, FROSTBITE DAMAGE OF THE LIPS, MOUTH, AND MUCOUS
    MEMBRANES MAY OCCUR. CHRONIC: NO DATA AVAILABLE.

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

Waste Disposal Methods:OBSERVE ALL FEDERAL, STATE AND LOCAL REGULATIONS
    WHEN DISPOSING OF THIS SUBSTANCE. FOR ASSISTANCE, CONTACT THE
    DISTRICT DIRECTOR OF THE ENVIRONMENTAL PROTECTION AGENCY.

=====================  Regulatory Information  =====================

SARA Title III Information:(CONTD. FROM "SIGNS AND SYMPTOMS")
    FROSTBITE, REDNESS, PAIN, BLURRED VISION. INGESTION: FROSTBITE
    DAMAGE TO LIPS, MOUTH, AND MUCOUS MEMBRANES.
Federal Regulatory Information:(CONTD. FROM "FIRST AID") NOT AVAILABLE
    OR IMPRACTICAL TO USE, GENTLY WRAP AFFECTED PART IN BLANKETS.
    ENCOURAGE VICTIM TO EXERCISE AFFECTED PART WHILE IT IS BEING
    WARMED. ALLOW CIRCULATION TO RETURN N ATURALLY, GET MEDICAL
    ATTENTION. EYE CONTACT: IMMEDIATELY WASH EYES WITH LARGE AMOUNT OF
    WATER, OCCASIONALLY LIFTING UPPER AND LOWER LIDS, UNTIL NO EVIDENCE
    OF CHEMICAL REMAINS (APPROXIMATELY 15-20 MI NUTES). IF FROSTBITE IS
    PRESENT, WARM WATER MAY BE PREFERRED. GET MEDICAL ATTENTION.
    INGESTION: UNLI KELY EMERGENCY TREATMENT  REQUIRED. IF ADVERSE
    EFFECTS OCCUR, TREAT SYMPTOMATICALLY (CONTD. SEE "STATE
    REGULATORY")
State Regulatory Information:(CONTD. FROM FEDERAL REGULATORY") AND
    SUPPORTIVELY AND GET MEDICAL ATTENTION. ANTIDOTE: NO SPECIFIC
    ANTIDOTE. TREAT SYMPTOMATICALLY AND SUPPORTIVELY.

=======================  Other Information  =======================

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