Valid 05/2001 - 07/2001
Aldrich Chemical Co., Inc.
1001 West St. Paul
Milwaukee, WI 53233 USA
Tel: 414-273-3850
M A T E R I A L S A F E T Y D A T A S H E E T
SECTION 1. - - - - - - - - - CHEMICAL IDENTIFICATION- - - - - - - - - -
CATALOG #: 295477
NAME: METHANE, 99.0+%
SECTION 2. - - - - - COMPOSITION/INFORMATION ON INGREDIENTS - - - - - -
CAS #: 74-82-8
MF: CH4
EC NO: 200-812-7
SYNONYMS
FIRE DAMP * MARSH GAS * METHANE (ACGIH:OSHA) * METHYL HYDRIDE *
SECTION 3. - - - - - - - - - - HAZARDS IDENTIFICATION - - - - - - - - -
LABEL PRECAUTIONARY STATEMENTS
FLAMMABLE (USA)
EXTREMELY FLAMMABLE (EU)
DANGER: FLAMMABLE HIGH-PRESSURE GAS.
KEEP AWAY FROM SOURCES OF IGNITION - NO SMOKING.
IN CASE OF INSUFFICIENT VENTILATION, WEAR SUITABLE
RESPIRATORY EQUIPMENT.
CYLINDER TEMPERATURE SHOULD NOT EXCEED 125 F(52 C).
DO NOT PUNCTURE OR INCINERATE THIS CYLINDER.
SECTION 4. - - - - - - - - - - FIRST-AID MEASURES- - - - - - - - - - -
IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING GIVE ARTIFICIAL
RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.
IF SWALLOWED, WASH OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS.
CALL A PHYSICIAN.
SECTION 5. - - - - - - - - - FIRE FIGHTING MEASURES - - - - - - - - - -
EXTINGUISHING MEDIA
DO NOT EXTINGUISH BURNING GAS IF FLOW CANNOT BE SHUT OFF IMMEDIATELY.
USE WATER SPRAY OR FOG NOZZLE TO KEEP CYLINDER COOL. MOVE CYLINDER
AWAY FROM FIRE IF THERE IS NO RISK.
SPECIAL FIREFIGHTING PROCEDURES
WEAR SELF-CONTAINED BREATHING APPARATUS AND PROTECTIVE CLOTHING TO
PREVENT CONTACT WITH SKIN AND EYES.
DANGER: FLAMMABLE HIGH-PRESSURE GAS.
UNUSUAL FIRE AND EXPLOSIONS HAZARDS
VAPOR MAY TRAVEL CONSIDERABLE DISTANCE TO SOURCE OF IGNITION AND
FLASH BACK.
MAY FORM EXPLOSIVE MIXTURES WITH AIR.
SECTION 6. - - - - - - - - ACCIDENTAL RELEASE MEASURES- - - - - - - - -
EVACUATE AREA AND KEEP PERSONNEL UPWIND.
SHUT OFF ALL SOURCES OF IGNITION.
WEAR SELF-CONTAINED BREATHING APPARATUS, RUBBER BOOTS AND HEAVY
RUBBER GLOVES.
SHUT OFF LEAK IF THERE IS NO RISK.
VENTILATE AREA AND WASH SPILL SITE AFTER MATERIAL PICKUP IS COMPLETE.
SECTION 7. - - - - - - - - - - HANDLING AND STORAGE- - - - - - - - - - -
REFER TO SECTION 8.
ADDITIONAL INFORMATION
WARNING: SUCK-BACK INTO CYLINDER MAY CAUSE RUPTURE.
USE BACK-FLOW-PREVENTIVE DEVICE IN PIPING.
USE WITH EQUIPMENT RATED FOR CYLINDER PRESSURE, AND OF COMPATIBLE
MATERIALS OF CONSTRUCTION. CLOSE VALVE WHEN NOT IN USE AND WHEN EMPTY.
MAKE SURE CYLINDER IS PROPERLY SECURED WHEN IN USE OR STORED.
CYLINDER TEMPERATURE SHOULD NOT EXCEED 125 F(52 C).
A FIRE OR EXPLOSION MAY RESULT WHEN METHANE COMES IN CONTACT WITH:
FLUORINE, CHLORINE, BROMINE, IODINE, BROMINE PENTAFLUORIDE, CHLORINE
TRIFLUORIDE, IODINE HEPTAFLUORIDE, LIQUID OXYGEN, TRIOXYGEN
DIFLUORIDE, DIOXYGEN DIFLUORIDE OR DIOXYGENYL TETRAFLUOROBORATE.
SECTION 8. - - - - - - EXPOSURE CONTROLS/PERSONAL PROTECTION- - - - - -
CHEMICAL SAFETY GOGGLES.
COMPATIBLE CHEMICAL-RESISTANT GLOVES.
MECHANICAL EXHAUST REQUIRED.
NIOSH/MSHA-APPROVED RESPIRATOR IN NONVENTILATED AREAS AND/OR FOR
EXPOSURE ABOVE THE ACGIH TLV.
DO NOT BREATHE GAS.
DO NOT GET IN EYES, ON SKIN, ON CLOTHING.
AVOID PROLONGED OR REPEATED EXPOSURE.
KEEP TIGHTLY CLOSED.
KEEP AWAY FROM HEAT, SPARKS, AND OPEN FLAME.
STORE AND USE WITH ADEQUATE VENTILATION.
CONTENTS UNDER PRESSURE.
SECTION 9. - - - - - - - PHYSICAL AND CHEMICAL PROPERTIES - - - - - - -
APPEARANCE AND ODOR
COLORLESS GAS
PHYSICAL PROPERTIES
BOILING POINT: -161 C
MELTING POINT: -183 C
EXPLOSION LIMITS IN AIR:
UPPER 15%
LOWER 5%
AUTOIGNITION TEMPERATURE: 998 F
VAPOR DENSITY: .55
SECTION 10. - - - - - - - - -STABILITY AND REACTIVITY - - - - - - - - -
STABILITY
STABLE.
CONDITIONS TO AVOID
AIR
INCOMPATIBILITIES
OXIDIZING AGENTS
HALOGENS
HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS
CARBON MONOXIDE, CARBON DIOXIDE
HAZARDOUS POLYMERIZATION
WILL NOT OCCUR.
SECTION 11. - - - - - - - - - TOXICOLOGICAL INFORMATION - - - - - - - -
ACUTE EFFECTS
MAY BE HARMFUL IF INHALED.
EXPOSURE CAN CAUSE:
NAUSEA, HEADACHE AND VOMITING
ADDITIONAL INFORMATION
AT HIGH CONCENTRATIONS METHANE FUNCTIONS AS A SIMPLE ASPHYXIANT BY
DISPLACING AIR.
RTECS #: PA1490000
METHANE
ONLY SELECTED REGISTRY OF TOXIC EFFECTS OF CHEMICAL SUBSTANCES
(RTECS) DATA IS PRESENTED HERE. SEE ACTUAL ENTRY IN RTECS FOR
COMPLETE INFORMATION.
SECTION 12. - - - - - - - - - ECOLOGICAL INFORMATION - - - - - - - - - -
DATA NOT YET AVAILABLE.
SECTION 13. - - - - - - - - - DISPOSAL CONSIDERATIONS - - - - - - - - -
CAUTION: NO-RETURN CYLINDER. DO NOT REUSE. EMPTY CYLINDER WILL CONTAIN
HAZARDOUS RESIDUE. FOLLOW PROPER DISPOSAL TECHNIQUES.
OBSERVE ALL FEDERAL, STATE AND LOCAL ENVIRONMENTAL REGULATIONS.
SECTION 14. - - - - - - - - - - TRANSPORT INFORMATION - - - - - - - - -
CONTACT ALDRICH CHEMICAL COMPANY FOR TRANSPORTATION INFORMATION.
SECTION 15. - - - - - - - - - REGULATORY INFORMATION - - - - - - - - - -
EUROPEAN INFORMATION
EC INDEX NO: 601-001-00-4
EXTREMELY FLAMMABLE
R 12
EXTREMELY FLAMMABLE.
S 9
KEEP CONTAINER IN A WELL-VENTILATED PLACE.
S 16
KEEP AWAY FROM SOURCES OF IGNITION - NO SMOKING.
S 33
TAKE PRECAUTIONARY MEASURES AGAINST STATIC DISCHARGES.
REVIEWS, STANDARDS, AND REGULATIONS
OEL=MAK
ACGIH TLV-SIMPLE ASPHYXIANT DTLVS* TLV/BEI,1999
MSHA STANDARD:ASPHYXIANTS/GASES
DTLWS* 3,22,1973
OSHA PEL (CONSTRUC):SIMPLE ASPHYXIANT-INERT GASES AND VAPORS
CFRGBR 29,1926.55,1994
OSHA PEL (SHIPYARD):SIMPLE ASPHYXIANT - INERT GAS AND VAPOR
CFRGBR 29,1915.1000,1993
OEL-AUSTRALIA: ASPHYXIANT, JAN1993
OEL-BELGIUM: ASPHYXIANT, JAN1993
OEL-HUNGARY: ASPHYXIANT, JAN1993
OEL-THE NETHERLANDS: MAC-TGG 0.4 PPM (1 MG/M3), JAN1999
OEL-SWITZERLAND: MAK-W 10000 PPM (6700 MG/M3), JAN1999
OEL-UNITED KINGDOM: ASPHYXIANT, SEP2000
OEL IN ARGENTINA, BULGARIA, COLOMBIA, JORDAN, KOREA CHECK ACGIH TLV;
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM CHECK ACGIH TLV
NOHS 1974: HZD 45655; NIS 28; TNF 729; NOS 41; TNE 12323
NOES 1983: HZD 45655; NIS 30; TNF 3141; NOS 41; TNE 65649; TFE 2728
EPA TSCA SECTION 8(B) CHEMICAL INVENTORY
EPA TSCA SECTION 8(D) UNPUBLISHED HEALTH/SAFETY STUDIES
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JANUARY 2001
SECTION 16. - - - - - - - - - - OTHER INFORMATION- - - - - - - - - - - -
THE ABOVE INFORMATION IS BELIEVED TO BE CORRECT BUT DOES NOT PURPORT TO
BE ALL INCLUSIVE AND SHALL BE USED ONLY AS A GUIDE. SIGMA, ALDRICH,
FLUKA SHALL NOT BE HELD LIABLE FOR ANY DAMAGE RESULTING FROM HANDLING
OR FROM CONTACT WITH THE ABOVE PRODUCT. SEE REVERSE SIDE OF INVOICE OR
PACKING SLIP FOR ADDITIONAL TERMS AND CONDITIONS OF SALE.
COPYRIGHT 2001 SIGMA-ALDRICH CO.
LICENSE GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY
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