Product ID:MATG14160, METHANE COMPRESSED GAS
MSDS Date:06/25/1990
FSC:6830
NIIN:01-306-7489
MSDS Number: BNDWB

MATHESON GAS PRODUCTS

30 SEAVIEW RD
SECAUCUS, NJ 07096
US

Emergency Phone: 800-424-9300(CHEMTREC)

Info Phone: 201-867-4100

Cage: 0NPS5

MATHESON GAS PRODUCTS INC

1587 SECACUS, NJ 07094-1882 US

Telephone: 800-424-9300 (CHEMTREC)

Cage: 0NPS5

METHANE (MERCAPTAN MAY BE ADDED AS AN ODORIZER)

CAS: 74-82-8

RTECS: PA1490000

Fraction By Weight: >99.9%

ACGIH TLV: ASPHYXIANT

AS FOG. COOL CONTR W/WATER, FROM AS FAR A DISTANCE

RTECS: 9999999ZZ

TO RADIUS OF 1500 FT FOR UNCONTROLLABLE FIRES.

RTECS: 9999999ZZ

ELECTROCONDUCTIVITY OF SUBSTANCE, FLOW/AGITATION

RTECS: 9999999ZZ

SPARKS WITH POSSIBLE AUTOIGNITION.

RTECS: 9999999ZZ

INTERHALOGENS, NITROGEN TRIFLUORIDE, OXIDERS

RTECS: 9999999ZZ

CASES, SKIN MAY BECOME HARD & WHITE &

RTECS: 9999999ZZ

IF LIQ IS SWALLOWED,

RTECS: 9999999ZZ

NO DATA AVAILABLE.

RTECS: 9999999ZZ

WARM WATER IS NOT AVAIL/IMPRACT TO USE,

RTECS: 9999999ZZ

TO EXERCISE AFFECTED PART WHILE IT IS BEING WARMED.

RTECS: 9999999ZZ

IF CONTACT W/LIQ/COMPRESSED GAS OCCUR,

RTECS: 9999999ZZ

REMAINS (APPROX 15-20 MIN). GET MD ATTN IMMED.

RTECS: 9999999ZZ

NO SPECIFIC ANTIDOTE. TREAT SYMPTOMATICALLY

RTECS: 9999999ZZ

SPACES BEFORE ENTERING.

RTECS: 9999999ZZ

SCBA W/FULL FACEPIECE OPERATED IN PRESS

RTECS: 9999999ZZ

FACEPIECE & OPERATED IN PRESS-DEMAND /OTHER POS

RTECS: 9999999ZZ

DEMAND OR OTHER POSITIVE PRESSURE MODE.

RTECS: 9999999ZZ

FREEZE. EYE WASH AND QUICK DRENCH SHOWER.

RTECS: 9999999ZZ

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:NO Ingestion:NO
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHAL:METHANE:PREGNANT MICE WERE EXPOS
FOR 1 HR TO FUEL GAS, CONTAINING 85% METHANE. RESULTANT ABNORM OF
FETAL BRAIN PRODUCED BRAIN HERNIAS & HYDROCEPHALUS. ACUTE:IN SUDDEN
ACUTE ASPHY, UNCONC MAY BE IMMED. W/SLOW DEV THERE MAY BE RAPID
RESP & PULSE, AIR HUNGER, DIZZ, REDUCED AWARENESS, TIGHTNESS (EFTS
OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:IN HEAD, TINGLING SENSATION,
INCOORDINATION, FAULTY JUDGEMENT, EMOTIONAL INSTABILITY & RAPID
FATIGUE. AS ASPHY PROGRESSES, NAUS, VOMIT, COLLAPSE, UNCONC,
CONVULSIONS, DEEP COMA & DEATH ARE PO S. SKIN:DUE TO RAPID
EVAPORATION, LIQ MAY CAUSE FROSTBITE W/REDNESS, TINGLING &
PAIN/NUMBNESS. IN MORE SEV (ING 7)
Medical Cond Aggravated by Exposure:NONE SPECIFIED BY MANUFACTURER.

First Aid:INHAL:REMOVE FROM EXPOS TO FRESH AIR IMMED. IF BRTHG HAS
STOPPED, GIVE ARTIF RESP. MAINTAIN AIRWAY & BLOOD PRESS & ADMIN O*2
IF AVAIL. KEEP PERSON WARM & AT REST. TREAT SYMPTOMATICALLY &
SUPPORTIVELY. ADMIN OF O*2 SHOULD BE PERFORMED BY QUALIFIED
PERSONNEL. GET MD ATTN. SKIN:IF ADVERSE EFTS OCCUR, GET MD ATTN. IN
CASE OF FROSTBITE, WARM AFFECTED SKIN IN WARM WATER AT A TEMP OF
107F. IF (ING 10)

Flash Point:-369F,-223C
Lower Limits:5.0%
Upper Limits:15%
Extinguishing Media:DRY CHEMICAL, CARBON DIOXIDE, OR HALON. FOR LARGER
FIRES, USE WATER SPRAY, FOG OR STANDARD FOAM.
Fire Fighting Procedures:WEAR NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP
. MOVE CONTR FROM FIRE AREA IF POS. STAY AWAY FROM STORAGE TANK
ENDS. FOR MASS FORM IN STORAGE AREA (SUPDAT)
Unusual Fire/Explosion Hazard:DANGEROUS FIRE & EXPLOS HAZ WHEN EXPOS TO
HEAT/FLAME. CYLINDER MAY EXPLODE IN HEAT OF FIRE. VAP-AIR MIX ARE
EXPLOS ABOVE FLASH POINT. DUE TO LOW (ING 4)

Spill Release Procedures:OCCUP SPILL:SHUT OFF IGNIT SOURCES. STOP LEAK
IF YOU CAN WITHOUT RISK. USE WATER SPRAY TO REDUCE VAP. ISOLATE
AREA UNTIL GAS HAS DISPERSED. NO SMOKING/FLAME/FLARES IN HAZ AREA!
KEEP UNNEC PEOPLE AWAY. ISOLATE HAZ AREA & DENY ENTRY, VENT CLSD
(ING 15)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:MATERIAL IS EXTREMELY FLAMMABLE. AVOID
CONTACT WITH HEAT, SPARKS, FLAMES OR OTHER SOURCES OF IGNITION.
Other Precautions:CONTENTS ARE UNDER PRESSURE; CONTAINERS MAY RUPTURE
VIOLENTLY AND TRAVEL A CONSIDERABLE DISTANCE. CONTAINERS SHOULD
MEET BONDING AND GROUNDING GUIDELINES IN NFPA 77-1983.

Respiratory Protection:SPECIFIC RESP SELECTION MUST BE BASED ON CONTAM
LEV FOUND IN WORK PLACE, MUST NOT EXCEED WORKING LIM OF RESP & MUST
BE NIOSH/MSHA APPRVD. SUPPLIED AIR RESP OPERATED IN
PRESS-DEMAND/OTHER POS PRESS MOD E/ANY SCBA. EMER CONDTNS:SCBA
W/(ING 16)
Ventilation:PROVIDE GENERAL DILUTION VENTILATION.
Protective Gloves:COLD INSULATING GLOVES.
Eye Protection:CHEM WORK GOGG & FULL LNGTH FCSHLD
Other Protective Equipment:IN GAS FORM, PROT CLTHG NOT REQ. IF CONTACT
W/LIQ FORM IS POSS, WEAR APPROP PROT CLTHG & EQUIP TO PREV SKIN
FROM(ING 19)
Work Hygienic Practices:CONTACT LENSES SHOULD NOT BE WORN.
Supplemental Safety and Health
FIRE FIGHT PROC:USE UNMANNED HOSE HOLDER OR MONITOR NOZZLES, ELSE
WITHDRAW FROM AREA & LET FIRE BURN. WITHDRAW IMMED IN CASE OF
RISING SOUND FROM VENT SAFETY DEVICE/ANY DISCOLORATION OF STORAGE
TANK F ROM FIRE. LET STORAGE VESSEL BURN UNLESS LEAK CAN BE
STOPPED, IF FLOW CAN BE STOPPED USE WATER IN FLOODING AMTS (ING 2)

Boiling Pt:B.P. Text:-260F,-162C
Melt/Freeze Pt:M.P/F.P Text:-296F,-182C
Vapor Pres:760 @-161C
Vapor Density:0.555
Spec Gravity:0.717 G/L @ 0C
Solubility in Water:3.5 @ 17C
Appearance and Odor:ODORLESS, COLORLESS, TASTELESS GAS.

Stability Indicator/Materials to Avoid:YES
REACTS EXPLOS W/BROMINE, CHLORINE, CHLORINE DIOXIDE, DIOXYGEN
DIFLUORIDE, DIOXYGENYL TETRAFLUOROBORATE, FLUOINE (ING 6)
Stability Condition to Avoid:HIGH TEMPERATUES AND PRESSURES.
Hazardous Decomposition Products:THERMAL DECOMPOSITION PRODUCTS MAY
INCLUDE TOXIC CO*X.

Waste Disposal Methods:DISPOSAL MUST BE IN ACCORDANCE WITH STANDARDS
APPLICABLE TO GENERATORS OF HAZARDOUS WASTE, 40 CFR 262. EPA
HAZARDOUS WASTE NO D001. 100 LB CERCLA SECTION 103 REPORTABLE
QUANTITY.

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