PRAXAIR INC -- ARGON -- 6685-00-292-1189 
=====================  Product Identification  =====================

Product ID:ARGON
MSDS Date:12/01/1992
FSC:6685
NIIN:00-292-1189
=== Responsible Party ===
Company Name:PRAXAIR INC
Address:39 OLD RIDGEBURY RD
City:DANBURY
State:CT
ZIP:06817-0001
Country:US
Info Phone Num:203-794-5782
Emergency Phone Num:203-794-5782/800-424-9300(CHEMTREC)
CAGE:0LV01
=== Contractor Identification ===
Company Name:MOELLER INSTRUMENT CO
Address:126 MAIN ST
Box:668
City:IVORYTON
State:CT
ZIP:06442
Country:US
Phone:860-767-2104
CAGE:76526
Company Name:PRAXAIR, INC.
Address:39 OLD RIDGEBURY RD
Box:City:DANBURY
State:CT
ZIP:06810-5113
Country:US
Phone:800-772-9247; 800-PRAXAIR
CAGE:0LV01

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

Ingred Name:ARGON
CAS:7440-37-1
RTECS #:CF2300000
Fraction by Wt: 100%
Other REC Limits:NONE RECOMMENDED
ACGIH TLV:ASPHYXIANT; 9596

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

LD50 LC50 Mixture:TLV:SIMPLE ASPHYXIANT, 0.5MG/M3
Routes of Entry: Inhalation:YES  Skin:YES  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:INGEST:PROD GAS @NORMAL
    TEMP/PRESSURE.SKIN ABSORP:NO EVIDENCE OF ADVERSE EFFECTS FRM AVAI
    INFO.INHAL:ASPHYXIANT.MODERATE CONC MAY CAUSE
    HEAD,DROWS,DIZZ,EXCITATION,EXCESS SALIVATION,VOMIT,UNCONSC.SKIN/
    EYE:NO HARMFUL EFFECT EXPECTED FRM VAP.CHRONIC:NO EVIDENCE OF
    ADVERSE EFFECTS FRM AVAI INFO.WORKING W/WELD/CUT MAY (SUP)
Effects of Overexposure:ARGON AN ASPHYXIANT.LACK OF OXYGEN CAN CAUSE
    DEATH. SHORT TERM OVEREXPO TO WELD/CUT FUMES MAY RESULT IN
    DISCOMFORT SUCH AS DIZZ,NAU,DRYNESS OR IRRIT OF NOSE/THROAT/EYES.
Medical Cond Aggravated by Exposure:A KNOWLEDGE OF AVAI TOXICLOLOGY
    INFO & OF PHYS/CHEM PROPERTIES OF MATL SUGGEST THAT OVEREXPO IS
    UNLIKELY TO AGGRAVATE EXISTING MED CONDITIONS.

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

First Aid:INGEST:PRODU GAS @NORMAL TEMP/PRESSURE.SKIN:FLUSH
    W/ATER.INHAL:REMOVE TO FRESH AIR.GIVE ARTIFICIAL RESP IF NOT
    BREATHING.GIVE OXYGEN IF BREATHING IS DIFFICULT.CALL
    PHYSICIAN.EYE:FLUSH W/WATER.NOTE TO  DR:PRODUCT IS INERT.THERES NO
    SPECIFIC ANTIDOTE.TREATMENT OF OVEREXPO SHOULD BE DIRECTED @CONTROL
    OF SYMPTOMS & CLINICAL CONDITIONS.

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

Autoignition Temp:Autoignition Temp Text:NA
Lower Limits:N/APPLICABLE
Upper Limits:N/APPLICABLE
Extinguishing Media:ARGON CANNOT CATCH FIRE.USE MEDIA APPROPRIATE FOR
    SURROUNDING FIRE.
Fire Fighting Procedures:EVACUATE ALL PERSON FRM DANGER AREA.IMMED COOL
    CNTNR W/WATERSPRAY FRM MAX DISTANCE TIL COOL,THEN MOVE CNTNR AWAY
    FROM FIRE AREA W/O RISK.SHUT OFF LEAD W/O RISK.
Unusual Fire/Explosion Hazard:ARCS/SPARK IGN COMBUST.REF:ANSZ49.1.CNTNR
    MAY RUPTURE DUE TO FIRE HEAT.NO PART OF CNTNR SHOULD BE SUBJ TO
    TEMP >52C.MOST CNNTR PROVIDED W/PRESUSE RELIEF(SUPPLE)

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

Spill Release Procedures:ARGON ASPHYXIANT.EVACUATE ALL PERSON.USE SCBA
    WHERE NEEDED.SHUT OFF CYL W/O RISK.VENTI AREA OR MOVE CYL TO WELL
    VENTI AREA.TEST AREA ESPEC CONF AREA FOR SUFFI OXY CONTENT PRIOT TO
    RE-ENTRY OF PERSONNE L.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

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

Handling and Storage Precautions:ARC/SPARK DURING USE COULD IGN SOURCE
    FOR COMBUST MATL.PREVENT FIRES.SEE NFPA 51B.USE PIPING/EQPMT
    ADEQUATE DESIGNED TO W/STAND PRESSURES ENCOUNTERED.
Other Precautions:GAS CAN CAUSE RAPID SUFFOCATION-OXY DEFFIC.STORE/USE
    W/ADEQUATE VENTI.DONT ALLOW CYL TO BECOME PART OF ELECTR
    CIRCUIT.READ/UNDERSTAND MFG INSGTRUCTIONS/PRECAUT LABEL.FUME/GAS
    CANT BE CLASSIFIED SIMPLY -DEPENDS ON METAL,CONDITIONS,WORKER,ETC.

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

Respiratory Protection:USE AIR-PURIF/AIR-SUPP RESP AS APPROPR WHERE LOC
    &/OR GEN EXHAU VENTI NOT ADEQUATE TO KEEP WORKER EXPO BEL
    APPLICABLE TLV DURING WELD OPERATIONS W/ARGON.AIR SUPP RESP REQUIRE
    WHILE WORK IN CONF SPACES .CONFORM RESP PROT USE W/29CFR1910.134.
Ventilation:LOC EXHAU-USE IF NECESASRY TO MAINTAIN HAZ FUMES/GAS CONCE
    BEL APPLICABLE TLV IN WORK BREATH ZONE.MECH(GEN)-UNDER (SUPP)
Protective Gloves:WELDING GLOVES RECOMMENDED
Eye Protection:HELMET,FACESHIELD W/FILT PER ANSI Z49.1
Other Protective Equipment:PROVIDE PROT SCREEN/FLASH GOGG IF NECESSARY
    TO PROT OTHER.SELECT PER 29CFR1910.133.HAND/HEAD/BODY PROT AS
    NEED.DK CLOTH.
Work Hygienic Practices:SEE OSHA PUBLICATION 2206(29CFR1910) & PRAXAIR
    PUBLICATION L-52-529.NEVER WORK ON PRESSURIZED SYSTEM.
Supplemental Safety and Health
FIRE/EXPLO:DEVICE DESIGNED TO VENT CONTENTS WHEN EXPO TO ELEV TEMP.
    HEALTH:CREATE ADDN HEALTH HAZ.FUMES/GASES CAN BE DANGEROUS,MAY
    CAUSE SERIOUS LUNG DISEASES. CONDITIONS AVOID:DONT STRIKE ARC ON
    CYL. DONT GROUND CYL. VENTI:CERTAIN WORK CONDITIONS GENE EXHAU
    VENTI MAY BE ACCEPTABLE PROVIDE THAT ADEQEQ TO MAINT BEL TLV.

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

HCC:N1
Boiling Pt:B.P. Text:-301F,-185C
Melt/Freeze Pt:M.P/F.P Text:-309F,-189C
Decomp Temp:Decomp Text:NP
Vapor Pres:GAS
Vapor Density:1.378 @21C
Spec Gravity:GAS
pH:NP
Viscosity:NP
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLESS,ODORLESS GAS AT NORMAL TEMP & PRESSURE
Percent Volatiles by Volume:100
Corrosion Rate:NP

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

Stability Indicator/Materials to Avoid:YES
NONE CURRENTLY KNOWN. ARGON IS CHEMICALLY INERT.
Stability Condition to Avoid:HI PRESSURE GAS.CLOSE VALVE WHEN NOT IN
    USE/EMPTY.USE W/EQPMT RATED TO ADEQUATELY W/STAND PRESSREU TO BE
    ENCOUNTERE(SUP)
Hazardous Decomposition Products:OZONE/NITROGEN OXIDES-FORM BY
    RADIATION FRM ARC.OTHER OF NORM OPERATION FRM
    VOLATILIZATION,REACTION OR OXIDATION OF MATL

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

Waste Disposal Methods:SLOWLY RELEASE INTO ATM.DISCARD ANY
    PRODUCT,RESIDUE,DISPOSABLE CNTNR OR LINER IN ENVIRONMENTALLY
    ACCEPTABLE MANNER IN FULL COMPLIANCE W/FED/STATE/LOC REGS.

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