Page 157 - Handbook of Hazardous Chemical Properties

DIPHFNYLMETFIANE DIISOCYANATE 147
Hazard: Not pertinent; Burning Rate: Not pertinent.
Chemical Reactivity - Reactivity with Water : No reaction; Reactivity with Common Materials: No
reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

DIPHENYL ETHER
Chemical Designations - Synonyms: Phenyl Ether; Diphenyl Oxide; Phenoxybenzene; Chemical
Formula: C,H,OC,I&.
observable Characteristics - Physical State (as normally shipped): Liquid; Color: Colorless; Odor:
Weak geranium.
Physical and Chemical Properties - Physical State at 15 “c and 1 atm. : Solid; Molecular Weight:
170.2; Boiling Point at 1 am.: 495,257,530; Freezing Point: 81,27,300; Critical Temperature: 921,
494, 767; Critical Pressure: 478, 32.5, 3.30; Specific Gravity: 1.07 at 27°C (liquid); Vapor (Gas)
Density: Not pertinent; Ratio of SpeciJic Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vaporization: 130, 72, 3.0; Heat of Combustion: -15,520, -8,620, -361; Heat of Decomposition: Not
pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Goggles or face shield;
rubber gloves; Symptoms Following Exposure: Inhalation may cause nausea because of disagreeable
odor. Contact of liquid with eyes causes mild irritation. Prolonged exposure of skin to liquid causes
reddening and irritation. Ingestion produces nausea; General Treatmentforfiposure: EYES: flush with
water for at least 15 min. SKIN: wipe off, wash with soap and water. INGESTION: induce vomiting
and get medical attention; Toxicity by Inhalation (Threshold Limit Value): 1 ppm; Short-Tern Exposure
Limits: Data not available; Toxicity by Ingestion: Grade 2; oral LD,, 3,370 mglkg (rat); Lute Toxicity:
Data not available; Vapor (Gas) Irritant Characteristics: Data not available; Liquid or Solid Irritant
Characteristics: Data not available; Odor i%reshold 0.1 ppm.
Fire Hazards - Flash Point (deg. F): 239 CC; Flammable Limits in Air (%): 0.8 - 1.5; Fire
Extinguishing Agents: Dry chemical, carbon dioxide; Fire Extinguishing Agents Not to be Used: Water
or foam may cause frothing; Special Hazards of Combustion Products: Not pertinent; Behavior in Fire:
Not pertinent; Ignition Temperature (deg. F): 1.148; Electrical Hazard: Data not available; Burning
Rate: 3.2 mm/min.
Chemical Reactivity - Reactivity with Water : No reaction; Reactivity with Common Materials: No
reaction; Stability During Tmnsport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

DIPHENYLMETHANE DIISOCYANATE
Chemical Designations - Synonyms: Carwinate 125 M; Diphenylmethane-4,4‘ -diisocyanate; Hylene
M50; MDI; Methylenebis(4-phenylisocyanate); Multrathane M; Nacconate 300; Vilrathane 4300;
Chemical Formula: @-OCNC,HJ2CH2.
Observable Characteristics - Physical State (as normally shipped): Solid; Color: Colorless to light
yellow; Odor: Data not available.
Physical and Chemical Properties - Physical State at 15 SC and 1 atm. : Solid; Molecular Weigh:
250.3; Boiling Point at 1 atm.: 738, 392, 665; Freezing Point: 100, 37.7, 311; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.2 at 20°C (solid); Vapor (Gas)
Density: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vaporization: Not pertinent; Heat of Combustion: Not pertinent; Heat of Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Mask or respirator of
type approved by U.S. Bu. Mines (above 135°C); clean rubber gloves; chemical goggles; clean
waterproof or freshly laundered protective clothing (coveralls, rubber boots, caps, etc.); Symptoms
Following Exposure: Breathlessness, chest discomfort, and reduced pulmonary function; General
Treatment for Exposure: INHALATION: treat symptomatically; give oxygen. Call a physician. SKIN:
wash with soap and water. Rubbing alcohol helpful. EYE: flush with water at least 15 min. Call a
physician; Toxicity by Inhalation (ThresholdLimit Value): 0.02 ppm; Short-Term Exposure Limits: Data