Product ID:TEFZEL FLUOROPOLYMERS, HT 2141
MSDS Date:12/21/1988
FSC:8010
NIIN:00N015576
MSDS Number: BKRJT

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

Info Phone: 800-441-7515

Preparer: W.H. MARTIN

Cage: DO962

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

Cage: DO962

TETRAFLUOROETHYLENE-ETHYLENE COPOLYMER

CAS: 25038-71-5

LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:NO
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 DEL AYED 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. EYES:FLUSH W/PLENTY OF WATER FOR AT LEAST
15 MIN. CALL MD IF SYMPTOMS PERSIST. SKIN:IF MOLTEN POLYMER CNTCTS,
COOL RAPID LY W/COLD WATER. DO NOT ATTEMPT TO PEELPOLYMER FROM
SKIN. GET MD FOR THERMAL BURN.

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 HYDROGEN
FLUORIDE FUMES WHICH REACT W/WATER (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:NONE SPECIFIED BY MANUFACTURER.
Work Hygienic Practices:AVOID CONTAMINATION OF CIGARETTES/TOBACCO
W/POLYMER DUST.
Supplemental Safety and Health
FIRE FIGHT PROC:TO FORM HYDROFLUORIC ACID. WEAR NEOPRENE GLOVES WHEN
HNDLG REFUSE FROM FIRE INVOLVING TEFZEL. CNDTNS (STAB):RESULT IN
AUTOCATALYTIC DEGRADATION W/"BLOW BACKS" THROUGH EXTRUDER FEED HOP
PER OR BARREL FRONT. VENT:BELOW OSHA PEL OF 3 PPM.

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/TOX GASES, HF &
PERFLUOROOLEFINS MAY BE EVOLVED. OSHA PEL FOR HF IS 3 PPM.

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

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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.