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Special hazards in fire
In case of fire, formation of carbon monoxide, carbon dioxide, nitrogen oxide, isocyanate vapor, and traces of
hydrogen cyanide is possible.
Extinguishing Media
Carbon dioxide, dry powder, and foam. In cases of large scale fires, alcohol-resistant foams are preferred. If water
is used, it should be used in very large quantities. The reaction between water and isocyanate may be vigorous.
Required special protective equipment for fire-fighters
Fire fighters should wear full-face, self-contained breathing apparatus and impervious protective clothing. Fire
fighters should avoid inhaling any combustion products.
6. ACCIDENTAL RELEASE MEASURES
Personal precautions
Wear full-protective clothing and respiratory protection as required maintaining exposures during clean-up below
the applicable exposure limits.
Environmental precautions
Do not discharge spillage into drains.
Clean-up procedures
Remove mechanically; cover remainders with wet absorbent material (e. g. sand, earth, sawdust). After approx.
15 min. transfer to waste container and do not seal (evolution of CO2). Keep damp in a safe ventilated area for
several days.
7. HANDLING AND STORAGE
Handling
Avoid contact with skin and eye. Do not smoke, eat and drink at the work-place.
Ventilation: If vapor or mist is generated during processing or use, local exhaust ventilation should be provided
to maintain exposures below the applicable limits.
Personal protection: see Section 8.
Storage
Keep product away from sources of alcohols, amines, or other materials that react with isocyanates. Avoid
prolonged heating above 160°C/320°F. Store the product in tightly closed containers in a well-ventilated place
and in accordance with national regulations. Keep out of reach of children and animals.
8. EXPOSURE CONTROLS/ PERSONAL PROTECTION
For exposure controls see Section 15.
Component exposure limits
CAS no. Type ppm mg/m³
4,4’-Diphenylmethane diisocyanate 101-68-8 OSHA PEL 0.02 0.2
ACGIH (TLV-TWA) 0.005
Personal protection equipment
General: Wear suitable protective clothing, protective gloves and protective goggles/mask.
Suitable materials for safety gloves:
Natural rubber/natural latex – NR (>= 0.5 mm)
Polychloroprene – CR (>= 0.5mm)
Nitrile rubber – NBR (>= 0.35mm)
Butyl rubber – IIR (>= 0.5 mm)
Fluorinated rubber – FKM (>= 0.4 mm)
MATERIALS SAFETY DATA SHEET
Date Prepared May 26, 2011 2
nd
Edition





