Product ID:TEFZEL FLUOROPOLYMERS, 220
MSDS Date:12/21/1988
FSC:8010
NIIN:00N015584
MSDS Number: BKRKD

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

Info Phone: 800-441-7515/MSDS 302-992-3511

Preparer: W.H. MARTIN

Cage: 18873

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

Cage: 18873

TETRAFLUOROETHYLENE-ETHYLENE COPOLYMER

CAS: 25038-71-5

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:ACUTE:INHAL:TOXIC & CORROSIVE HF MAY
BE LIBERATED DURING PROCESSING ABOVE 270C OR FROM SMOKING
TOBACCO/CIGARETTES CONTAMD W/POLYMER DUST. VAPORS CAN IRRIT EYES,
NOSE, THROAT, LUNGS. LUNG EFTS MAY BE D ELAYED FOR SEVERAL HRS. DU
PONT RECOMMENDS TREATING POLYMER DUST AS NUISANCE PARTICULATE & HAS
(SEE EFTS OF OVEREXP)
Explanation of Carcinogenicity:NOT RELEVANT
Effects of Overexposure:HLTH HAZ:ESTABLISHED AN AEL OF 10 MG/M3 TOTAL
DUST, SAME AS TLV FOR OTHER NUISANCE PARTICULATES. INGEST/SKIN:NOT
TOXIC. EYE:MECHANICAL IRRITATION.
Medical Cond Aggravated by Exposure:NONE KNOWN.

First Aid:INHAL:MOVE TO FRESH AIR. CALL MD IF SYMPTOMS PERSIST.
SKIN:WASH W/SOAP & WATER. IF MOLTEN POLYMER CONTACTS, COOL RAPIDLY
W/COLD WATER. DO NOT ATTEMPT TO PEEL POLYMER FROM SKIN. GET MD FOR
THERMAL BURN . EYES:FLUSH W/PLENTY OF WATER FOR AT LEAST 15 MIN.
CALL MD IF SYMPTOMS PERSIST. INGEST:GET MD IMMEDIATELY .

Flash Point Method:OC
Flash Point:DOES NOT FLASH
Extinguishing Media:WATER, CARBON DIOXIDE, FOAM, DRY CHEMICAL.
Fire Fighting Procedures:DOES NOT BURN W/O EXTERNAL FLAME. WEAR
NIOSH/MSHA APPRVD SCBA & FULL PROT EQUIP TO PROTECT FROM HF FUMES
WHICH REACT W/WATER TO FORM (SEE SUPP DATA)
Unusual Fire/Explosion Hazard:IRRITATING AND TOXIC FLUORINE COMPOUNDS
EVOLVED IN FIRE.

Spill Release Procedures:SWEEP UP TO AVOID SLIPPING HAZARD.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.

Handling and Storage Precautions:AVOID CONTAMINATION. KEEP CONTAINERS
CLOSED. BEFORE USING READ TEFZEL "SAFETY IN HANDLING AND USE",
BULLETIN E-64073.
Other Precautions:NONE SPECIFIED BY MANUFACTURER.

Respiratory Protection:USE NIOSH/MSHA APPROVED RESPIRATOR WHEN
TEMPERATURE EXCEEDS 270C IF VENTILATION IS INADEQUATE TO MAINTAIN
HF CONCENTRATION BELOW PEL.
Ventilation:VAPORS/FUMES LIBERATED DURING HOT PROCESSING SHOULD BE
EXHST COMPLETELY FROM WORK AREA TO MAINTAIN HF CONC (SUPP DATA)
Protective Gloves:NEOPRENE GLOVES.
Eye Protection:CHEMICAL WORKERS GOGGLES .
Other Protective Equipment:LONG SLEEVE SHIRT.
Work Hygienic Practices:AVOID CONTAMINATION OF CIGARETTES OR TOBACCO
W/POLYMER DUST.
Supplemental Safety and Health
FIRE FIGHT PROC:HYDROFLUORIC ACID. WEAR NEOPRENE GLOVES WHEN HNDLG
REFUSE FROM FIRE INVOLVING TEFZEL. CNDTNS (STAB):RESULT IN
AUTOCATALYTIC DEGRADATION W/"BLOW BACKS" THRU EXTRUDER FEED
HOPPER/BARREL FRONT. VENT:BELOW OSHA PEL OF 3 PPM. HAZ COMBUST
PRODS:HF, CARBONYL FLUORIDE, CO & LOW MOLECULAR WEIGHT
FLUOROCARBONS.

HCC:N1
Melt/Freeze Pt:M.P/F.P Text:518F,270C
Spec Gravity:1.7
Solubility in Water:INSOLUBLE.
Appearance and Odor:OFF-WHITE TRANSLUCENT PELLETS, NO ODOR.

MOLTEN ALKALI METALS, INTERHALOGEN COMPOUNDS.
Stability Condition to Avoid:TEFZEL WILL BURN IN ATM OF 30% O*2 WHEN
IGNIT SOURCE PRESENT. EXTENDED OVERHEATING (>400C FOR 2 HRS) CAN
(SEE SUPP DATA)
Hazardous Decomposition Products:ABOVE 270C IRRITATING & TOXIC GASES,
HF & PERFLUOROOLEFINS, MAY BE EVOLVED. OSHA PEL FOR HF IS 3 PPM.
(SEE SUPP DATA)

Waste Disposal Methods:LANDFILL OR INCINERATE IN COMPLIANCE W/FEDERAL,
STATE & LOCAL REGULATIONS. INCINERATION REQUIRES SCRUBBING OF
GASEOUS PRODUCTS TO REMOVE HYDROGEN FLUORIDE.

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.