toluene 2,6-diisocyanate
CAS No.: 91-08-7
Synonyms:
Formula: C9H6N2O2
Exact Mass: 174.04300
Molecular Weight: 174.15600
PSA: 58.86000
LogP: 1.92960
toluene 2,6-diisocyanate 91-08-7 MSDS
Name: Tolylene-2 6-Diisocyanate 97% Material Safety Data Sheet
Synonym: 2-Methyl-1,3-phenylene diisocyanate; Toluene-2,6-diisocyanate
CAS: 91-08-7
Section 1 - Chemical Product   MSDS Name:Tolylene-2 6-Diisocyanate 97% Material Safety Data Sheet
Synonym:2-Methyl-1,3-phenylene diisocyanate; Toluene-2,6-diisocyanate

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
91-08-7 Toluene-2,6-diisocyanate 97 202-039-0
Hazard Symbols: T+
Risk Phrases: 26 36/37/38 40 42/43 52/53

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Very toxic by inhalation. Irritating to eyes, respiratory system and skin. Limited evidence of a carcinogenic effect. May cause sensitization by inhalation and skin contact. Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Potential Health Effects
Eye:
Causes eye irritation. Lachrymator (substance which increases the flow of tears).
Skin:
Causes skin irritation. May be harmful if absorbed through the skin.
Organic isocyanates can cause local irritation and allergic reactions.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause liver and kidney damage. May cause cardiac disturbances. May cause central nervous system effects.
Inhalation:
Causes respiratory tract irritation. May cause liver and kidney damage. Central nervous system effects may include confusion, ataxia (failure of muscular coordination), vertigo, tinnitus, weakness, disorientation, lethargy, drowsiness, and finally coma. At high concentrations, isocyanates affect mucous membranes of the respiratory tract and may lead to fatal pulmonary edema. Exposure to low and often even unmeasurable isocyanate concentration results in sensitization. May cause cardiac damage. Can produce delayed pulmonary edema.
Chronic:
Repeated or prolonged exposure may cause allergic reactions in sensitive individuals. Chronic overexposure to isocyanates has been reported to cause lung damage, including decreased lung fuction, which may be permanent.

Section 4 - FIRST AID MEASURES
  Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Get medical aid. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Vapors may be heavier than air. They can spread along the ground and collect in low or confined areas. Containers may explode when heated. Contact with water forms corrosive vapors. Contact with water liberates highly flammable gases. Reacts with water, steam or acid to produce toxic and flammable vapors of hydrogen cyanide. Runoff from fire control or dilution water may cause pollution.
Extinguishing Media:
Use dry chemical or carbon dioxide.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, observing precautions in the Protective Equipment section. Provide ventilation. Do not get water inside containers. Approach spill from upwind.

Section 7 - HANDLING and STORAGE
  Handling:
Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation. Do not allow contact with water. Wash clothing before reuse. Keep from contact with moist air and steam. Isocyanates react with water to form CO2 gas. This gas can cause sealed containers to expand and possibly rupture.
Storage:
Store in a tightly closed container. Keep refrigerated. (Store below 4C/39F.) Sometimes packaged under dry nitrogen.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 91-08-7: Germany: 0.005 ppm TWA; 0.035 mg/m3 TWA Netherlands: 0.02 ppm STEL; 0.15 mg/m3 STEL Netherlands: 0.005 ppm MAC; 0.04 mg/m3 MAC Spain: 0.005 ppm VLA-ED; 0.036 mg/m3 VLA-ED Spain: 0.02 ppm VLA-EC; 0.14 mg/m3 VLA-EC Personal Protective Equipment Eyes: Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Liquid
Color: clear, colorless
Odor: None reported.
pH: Not available.
Vapor Pressure: 0.01 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 246-247 deg C
Freezing/Melting Point: 13 deg C
Autoignition Temperature: Not available.
Flash Point: > 110 deg C (> 230.00 deg F)
Explosion Limits, lower: 0.9%
Explosion Limits, upper: 9.5%
Decomposition Temperature:
Solubility in water: Reacts.
Specific Gravity/Density: 1.22 g/ml
Molecular Formula: C9H6N2O2
Molecular Weight: 174.16

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable at room temperature in closed containers under normal storage and handling conditions. Hazardous polymerization and/or hazardous decomposition may occur on contact with water or on exposure to heat.
Conditions to Avoid:
Light, moisture, heat.
Incompatibilities with Other Materials:
Oxidizing agents, acids, strong bases, alcohols, amines, moisture, organometallic compounds.
Hazardous Decomposition Products:
Hydrogen cyanide, nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
Hazardous Polymerization: May occur.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 91-08-7: CZ6310000 LD50/LC50:
Not available.
Carcinogenicity:
Toluene-2,6-diisocyanate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: TOLUENE DIISOCYANATE
Hazard Class: 6.1
UN Number: 2078
Packing Group: II
IMO
Shipping Name: TOLUENE DIISOCYANATE
Hazard Class: 6.1
UN Number: 2078
Packing Group: II
RID/ADR
Shipping Name: TOLUENE DIISOCYANATE
Hazard Class: 6.1
UN Number: 2078
Packing group: II
USA RQ: CAS# 91-08-7: 100 lb final RQ (Listed under Toluene diisocyanate); 45.4

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+
Risk Phrases:
R 26 Very toxic by inhalation.
R 36/37/38 Irritating to eyes, respiratory system
and skin.
R 40 Limited evidence of a carcinogenic effect.
R 42/43 May cause sensitization by inhalation and
skin contact.
R 52/53 Harmful to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 23 Do not inhale gas/fumes/vapour/spray.
S 36/37 Wear suitable protective clothing and
gloves.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 91-08-7: 2
Canada
CAS# 91-08-7 is listed on Canada's DSL List.
CAS# 91-08-7 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 91-08-7 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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