Product ID:HFC-32
MSDS Date:12/07/1992
FSC:6830
NIIN:00N044637
MSDS Number: BSCDM

E I DU PONT DE NEMOURS & CO

1007 MARKET ST
WILMINGTON, DE 19898
US

Emergency Phone: 800-441-3637;800-424-9300(CHEMTREC)

Info Phone: 800-441-9442

Cage: B0589

E.I. DUPONT DE NEMOURS & CO

WILMINGTON, DE 19898 US

Telephone: 800-441-7515;800-441-9442

Cage: 18873

DIFLUOROMETHANE; (METHANE, DIFLUORO- (HFC-32))

CAS: 75-10-5

Fraction By Weight: 100%

OSHA PEL N/K

ACGIH TLV: N/K

REPRODUCTIVE HAZARDS. TESTS IN BACTERIAL CELL

RTECS: 9999999ZZ

CATECHOLAMINE DRUGS, SUCH AS EPINEPHRINE,

RTECS: 9999999ZZ

EMERGENCY LIFE SUPPORT.

RTECS: 9999999ZZ

WEAR NIOSH/MSHA SCBA. IF THIS PROD IS RELS & NOT

RTECS: 9999999ZZ

CERCLA REPORTABLE QTY IS 100 LBS (RELS OF UNLISTED

RTECS: 9999999ZZ

SHOULD BE USED IN LOW/ENCLSD PLACES. GROUND ALL EQUIP

RTECS: 9999999ZZ

CLASS I, GRP D IN DIVISION 1 LOCATIONS. IN DIVISION 2

RTECS: 9999999ZZ

PROOF & RATED CLASS I, GRP D. NON-SPARKING MOTORS

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 OF HIGH CONCS OF VAP IS HARMFUL
& MAY CAUSE HEART IRREGS, UNCON/DEATH. INTENTIONAL MISUSE/DELIB
INHAL MAY CAUSE DEATH W/OUT WARNING. VAP REDUCES OXYGEN AVAIL FOR
BRTHG & IS HVR/AIR. OVEREXP BY I NHAL MAY LEAD TO TEMPORARY
ALTERATION OF HEART'S ELEC ACTIVITY W/IRREG PULSE,
PALPITATIONS/INADEQ (EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:CIRCULATIONS. CONT W/LIQ MAY CAUSE
FROSTBITE. ANIMAL DATA:EFTS FROM SINGLE EXPOS BY INHAL INCL
LETHARGY & TEMPORARY LOSS OF MOBILITY IN HIND LIMBS THAT WAS
REGAINED IN LESS THAN AN HR AFTER E ND OF EXPOS. CARDIAC SENSIT
OCCURRED IN1 OF 12 DOGS EXPOS TO CONC OF 250,000 PPM. RPTD EXPOS IN
GUINEA PIGS (SUPP DATA)
Medical Cond Aggravated by Exposure:INDIVIDUALS W/PREEXISTING DISEASES
OF THE CENTRAL NERVOUS OR CARDIOVASCULAR SYSTEM MAY HAVE INCREASED
SUSCEPTIBILITY TO TOXICITY OF EXCESSIVE EXPOSURES.

First Aid:INGEST:CALL MD IMMED . INHAL:IMMED REMOVE TO FRESH AIR. KEEP
PERS CALM. IF NOT BRTHG, GIVE ARTF RESP. IF BRTHG IS DFCLT, GIVE
OXYGEN. CALL MD. SKIN:FLUSH W/WATER FOR 15 MINS. TREAT FOR
FROSTBITE IF NEC BY GENTLY WARMING AFFECTED AREA. GET MED ATTN IF
IRRIT IS PRESENT. EYE:IMMED FLUSH W/PLENTY OF WATER FOR AT LST 15
MINS. CALL MD. NOTES TO MD:BECAUSE OF POSS DISTURB OF CARDIAC
RHYTHM, (ING 3)

Lower Limits:14%
Upper Limits:31%
Extinguishing Media:WATER SPRAY, WATER FOG, DRY CHEMICAL, "ALCOHOL"
FOAM, CARBON DIOXIDE (CO*2).
Fire Fighting Procedures:USE NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP .
KEEP CNTNR COOL W/WATER SPRAY. IF GAS EXITING CNTNR IGNITES, STOP
FLOW OF GAS. DO NOT PUT OUT FIRE (SUPDAT)
Unusual Fire/Explosion Hazard:FLAMM. CYLS ARE EQUIPPED W/TEMP & PRESS
RELIEF DEVICES BUT STILL MAY RUPTURE UNDER FIRE CNDTNS. USE WATER
TO COOL CYLS & TANKS.

Spill Release Procedures:NOTE:REVIEW FIRE & EXPLO HAZS & SFTY PRECS
BEFORE PROCEEDING W/CLEAN UP. USE APPROP PERSONAL PROT EQUIP DURING
CLEAN UP. IF SPILL CAN CAUSE CONC IN EXCESS OF 1000 PPM, TURN OFF
VALVES, ESP LOW/ENCLSD PLACES WHERE HEAVY VAPS MIGHT COLLECT. (ING
5)
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:STOR CNDTNS:CLEAN, DRY AREA. DO NOT
HEAT >52C(125F). AVOID BRTHG HIGH CONCS OF VAPS. USE SUFFICIENT
VENT TO KEEP EMPLOYEE EXPOS BELOW REC LIMITS.
Other Precautions:AVOID LIQUID CONTACT W/SKIN OR EYES. LINES &
EQUIPMENT WHICH WILL CONTAIN HFC-32 SHOULD BE PRETESTED W/NITROGEN
USING SOAPY WATER TO DETECT LEAKS.

Respiratory Protection:UNDER NORMAL MANUFACTURING CONDITIONS, NO
RESPIRATORY PROTECTION IS REQUIRED WHEN USING THIS PRODUCT.
NIOSH/MSHA APPROVED SCBA IS REQUIRED IF A LARGE RELEASE OCCURS.
Ventilation:NORMAL VENT FOR STD MFG PROCS IS GENERALLY ADEQ. LOC EXHST
SHOULD BE USED WHEN LG AMTS ARE RELEASED. MECH EXHST (ING 7)
Protective Gloves:IMPERVIOUS GLOVES.
Eye Protection:CHEM SPLASH GOGG .
Other Protective Equipment:NONE SPECIFIED BY MANUFACTURER.
Work Hygienic Practices:NONE SPECIFIED BY MANUFACTURER.
Supplemental Safety and Health
VP:248 PSIA @ 25C. FIRE FIGHT PROC:UNLESS LEAK CAN BE STOPPED IMMED.
HAZ DECOMP PROD:HYDROFLUORIC ACID & POSS CARBONYL FLUORIDE. EFTS OF
OVEREXP:EXPOS BY INHAL CAUSED SOME BLEEDING IN LUNGS & LIVER DI
SCOLORATION; KIDNEY & SPLEEN WERE ALSO ABNORMAL. NO ANIMAL TEST
RPTS ARE AVAIL TO DEFINE CARCIN, EMBRYOTOXIC/ (ING 2)

HCC:F4
Boiling Pt:B.P. Text:-61F,-52C
Melt/Freeze Pt:M.P/F.P Text:-213F,-136C
Vapor Pres:SUPP DATA
Vapor Density:1.85
Evaporation Rate & Reference:NOT RELEVANT
Solubility in Water:0.44 WT% @ 25C
Appearance and Odor:CLEAR, COLORLESS GAS; SLIGHT ETHEREAL ODOR.
Percent Volatiles by Volume:100 WT

Stability Indicator/Materials to Avoid:YES
INCOMPATIBLE W/ALKALI OR ALKALINE EARTH METALS-POWDERED AL, ZN, BE,
ETC.
Stability Condition to Avoid:AVOID OPEN FLAMES & HIGH TEMPERATURES.
Hazardous Decomposition Products:DECOMP PRODS ARE HAZ. THIS MATL CAN BE
DECOMPOSED BY HIGH TEMPS (OPEN FLAMES, GLOWING METAL SURFS, ETC)
FORMING (SUPDAT)

Waste Disposal Methods:RECLAIM BY DISTILLATION, INCINERATE OR REMOVE TO
A PERMITTED WASTE DISPOSAL FACILITY. COMPLY W/FEDERAL, STATE &
LOCAL REGULATIONS. THIS PRODUCT MAY BE RCRA HAZARDOUS WASTE ON
DISPOSAL DUE TO IGNITABIL ITY CHARACTERISTIC.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
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
assume responsibility for the suitability of this information to their
particular situation.