Product ID:D-113 DESMODUR N-100
MSDS Date:03/28/1996
FSC:6850
NIIN:00F052861
MSDS Number: CDCDX

BAYER CORP PROD SAFETY & REGULATORY AFFAIRS

100 BAYER RD
PITTSBURGH, PA 15205-9741
US

Emergency Phone: 412-923-1800/412-777-2725

Info Phone: 800-662-2927

Preparer: B J GAMBINO

Cage: GO657

BAYER CORPORATION

PITTSBURGH, PA 15205-9741 US

Telephone: 800-662-2927; 202-483-7616

Cage: 19511

ALIPHATIC POLYISOCYANATE, HEXAMETHYLENE DIISOCYANATE

CAS: 28182-81-2

RTECS: NQ9170000

Fraction By Weight: 99.3%

HEXAMETHYLENE DIISOCYANATE

CAS: 822-06-0

RTECS: MO1740000

Fraction By Weight: 0.7%

ACGIH TLV: 0.005 PPM

EPA Report Quantity: 1 LB

DOT Report Quantity: 1 LB

LD50 LC50 Mixture:ORAL LD50(RATS): 10000 MG/KG (SEE SUPP)
Routes of Entry: Inhalation:YES Skin:NO Ingestion:YES
Reports of Carcinogenicity:NTP:NO IARC:NO OSHA:NO
Health Hazards Acute and Chronic:INHALATION: IRRITATE & BURN THE NOSE,
THROAT, LUNGS & MUCOUS MEMBRANES OF THE RESPIRATORY TRACT. EXPOSURE
MAY LEAD TO BRONCHITIS, BRONCHIAL SPASM & PULMONARY EDEMA.
OVEREXPOSURE TO ISOCYANATES CAUSES LUNG DAMAGE & SENSITIZATION.
SKIN: IRRITATION & SENSITIZATION. EYES: IRRITATING & CORNEAL
OPACITY. (SEE SUPP)
Explanation of Carcinogenicity:NONE
Effects of Overexposure:IRRITATION, BURNING SENSATION, RUNNY NOSE, SORE
THROAT, COUGHING, CHEST DISCOMFORT, SHORTNESS OF BREATH, REDUCED
LUNG FUNCTION, ASTHMA ATTACK, FEVER, CHILLS, CHEST TIGHTNESS,
WHEEZING, COUGH, DECREASE IN LUNG FUNCTION, REDDENING,
SWELLING,RASH, SCALING, BLISTERING, PAIN, TEARING, STINGING
SENSATION, CLOUDING.
Medical Cond Aggravated by Exposure:ASTHMA & OTHER RESPIRATORY
DISORDERS (BRONCHITIS, EMPHYSEMA, HYPERREACTIVITY), SKIN ALLERGIES,
ECZEMA.

First Aid:EYES: FLUSH W/CLEAN, LUKEWARM WATER FOR 15 MINS. SKIN: WASH
THOROUGHLY W/SOAP & WATER. INHALATION: REMOVE TO FRESH AIR.
ASTHMATIC-TYPE SYMPTOMS MAY DEVELOP/MAY BE DELAYED UP TO SEVERAL
HOURS. TREATMEN T IS SYMPTOMATIC. INGESTION: DON'T INDUCE VOMITING.
GIVE 1-2 CUPS OF MILK/WATER TO DRINK. DON'T GIVE ANYTHING BY MOUTH
TO AN UNCONSCIOUS/CONVULSING PERSON. OBTAIN MEDICAL ATTENTION IN
ALL CASES.

Flash Point Method:SCC
Flash Point:375F
Extinguishing Media:DRY CHEMICAL, CO2, FOAM. LARGE FIRES: WATER SPRAY.
Fire Fighting Procedures:USE FULL EMERGENCY EQUIPMENT W/SCBA & FULL
PROTECTIVE CLOTHING.
Unusual Fire/Explosion Hazard:CLOSED CONTAINER MAY EXPLODE WHEN EXPOSED
TO EXTREME HEAT/BURST WHEN CONTAMINATED W/WATER; TOXIC GASES/FUMES
ARE GIVEN OFF DURING BURNING/THERMAL DECOMPOSITION.

Spill Release Procedures:EVACUATE PERSONNEL. REMOVE SOURCES OF IGNITION
& VENTILATE AREA. NOTIFY APPROPRIATE AUTHORITIES IF NECESSARY. USE
PERSONAL PROTECTIVE EQUIPMENT. DIKE/IMPOUND IF FEASIBLE.
VERMICULITE FULLER'S EARTH/OT HER ABSORBENT MATERIAL. (SEE SUPP)
Neutralizing Agent:TERGITOL TMN-10(20%); WATER(80%); AMMONIA(3-8%);
DETERGENT(2%); WATER(90-95%).

Handling and Storage Precautions:STORE AT TEMPS <-30F/>122F. SHELF LIFE
STORAGE IS 6 MONTHS AT 77F. STORE IN TIGHTLY CLOSED CONTAINERS TO
PREVENT MOISTURE CONTAMINATION.
Other Precautions:DON'T RESEAL IF CONTAMINATED. AT MAXIMUM STORAGE
TEMPS, MATERIAL MAY SLOWLY POLYMERIZE W/O HAZARD. IDEAL STORAGE
TEMP RANGE OF HANDLING IS 50-81F. AVOID CONTACT W/SKIN & EYES.
EDUCATE & TRAIN EMPLOYEE S IN SAFE USE OF PRODUCT.

Respiratory Protection:FOR SPRAY APPLICATIONS, AIR PURIFYING/FRESH AIR
SUPPLIED MAY BE NECESSARY. A SUPPLIED AIR RESPIRATOR(EITHER
POSITIVE PRESSURE/CONTINUOUS FLOW TYPE)IS RECOMMENDED. BEFORE AN
AIR PURIFYING RESPIRATOR IS USED, AIR MONITORING MUST BE
PERFORMED.
Ventilation:EXHAUST AIR: MAY BE CLEANED BY SCRUBBERS/FILTERS. CURING
OVENS: TO PREVENT EMISSIONS INTO THE WORKPLACE.
Protective Gloves:PERMEATION RESISTANT
Other Protective Equipment:APPROPRIATE CLOTHING, SKIN CREAMS, SAFETY
SHOWERS, EYEWASH STATIONS.
Work Hygienic Practices:REMOVE/LAUNDER CONTAMINATED CLOTHING BEFORE
REUSE.
Supplemental Safety and Health
VAPOR PRESSURE-POLYISOCYANATE: 70. HLTH HZRD-INGESTION: IRRITATION &
CORROSIVE ACTION IN THE MOUTH, STOMACH TISSUE & DIGESTIVE TRACT.
SPILLS: POUR DECONTAMINATION SOLUTION & ALLOW TO REACT FOR 10 MINS
. COLLECT IN OPEN CONTAINERS & ADD SOLUTION. REMOVE CONTAINERS,
COVER LOOSELY & ALLOW TO STAND FOR 24 TO 48 HOURS.

Boiling Pt:B.P. Text:382F
Vapor Pres:(SEE SUPP)
Spec Gravity:1.14
Solubility in Water:INSOLUBLE
Appearance and Odor:CLEAR/PALE YELLOW LIQUID; ODORLESS
Percent Volatiles by Volume:<0.1WT

Stability Indicator/Materials to Avoid:YES
WATER, AMINES, STRONG BASES, ALCOHOLS, METAL COMPOUNDS & SURFACE ACTIVE
MATERIALS.
Stability Condition to Avoid:MOISTURE, HEAT.
Hazardous Decomposition Products:BY HIGH HEAT & FIRE: CO2, CO, OXIDES
OF NITROGEN, HYDROGEN CYANIDE, HEXAMETHYLENE DIISOCYANIDE.
Conditions to Avoid Polymerization:CONTACT W/MOISTURE/OTHER MATERIALS
WHICH REACT W/ISOCYANATES/TEMPS >400F MAY CAUSE POLYMERIZATION.

Waste Disposal Methods:DISPOSE/INCINERATE IAW/FEDERAL, STATE & LOCAL
REGULATIONS. EMPTY CONTAINERS MUST BE HANDLED W/CARE DUE TO PRODUCT
RESIDUE. DECONTAMINATE CONTAINERS PRIOR TO DISPOSAL. DON'T HEAT/CUT
EMPTY CONTAINER W/ ELECTRIC/GAS TORCH. NA 3082.

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.