Page 283 - Handbook of Hazardous Chemical Properties

NONANE 273
Polymeriz&'on: Not pertinent.

NlTROUS OXIDE
Chemical Designations - Synonym: Dinitrogen monoxide; Chemical Formula: N,O.
Observable Characteristics - Physical State (as shipped) : Liquefied compressed gas; Color: Colorless;
Odor: None; slightly sweetish.
Physical and Chemical Properties - Physical State at 15 rand 1 atm. : Gas; Molecular Weight: 44.0;
Boiling Point at I atm.: -129.1, -89.5, 183.7; Freezing Point: -131.5, -90.8, 182.4; Critical
Temperature: 97.7, 36.5, 309.7; Critical Pressure: 1.054, 71.7, 7.28; Specific Gravity: 1.266 at -89
"C (liquid); Vapor (Gas) Specijic Gravity: 1.53; Ratio of Specijic Heats of Vapor (Gas): 1.303 at 25
"C; Latent Heat of Vaporization: 161.7, 89.9, 3.76; Heat of Combustion: Not pertinent; Heat of
Decomposition: Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Self-contained breathing
apparatus for high vapor concentrations; Symptoms Following Quosure: Inhalation causes intense
analgesia; concentrations of over 40-6096 cause loss of consciousness preceded by hysteria. Contact
of liquid with eyes or skin causes frostbite burn; General Treatment for Exposure: INHALATION:
remove to fresh air. EYES: get medical attention for frostbite burn. SKIN: treat frostbite burn; soak
in lukewarm water; Toxicity by Inhalation (Threshold Limit Value): Data not available; Short-Term
Inhalation Limits: 56.000 ppm for 60 min.; Toxicity by Ingestion: Grade 0, LD,, 0.5 > 15 glkg; Lure
Toxicity: Causes birth defects in rats; can cause lethal effects in chick eggs; Vapor (Gas) Irritant
Characteristics: Vapors are nonirritating to eyes and throat; Liquid or Solid Im'tant Characteristics:
No appreciable hazard; practically harmless to the skin; Odor Threshold Data not available.
Fire Hazards - Flash Point : Not pertinent (nonflammable compressed gas); Flammable Limits in Air
(X): Not pertinent; Fire Extinguishing Agents: Not pertinent; Fire Extinguishing Agents Not To Be
Used: Not pertinent; Special Hazards of Combustion Products: Not pertinent; Behavior in Fire: Will
support combustion, and may increase intensity of fire. Containers may explode when heated; Ignition
Temperature : Not pertinent; Electrical Hazard: Not pertinent; Burning Rate: Not pertinent.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials:
Supports combustion but does not cause spontaneous combustion; Stability During Transport: Stable;
Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of
Polymerization: Not pertinent.
NONANE
Chemical Designations - Synonyms: n-Noname; Chemical Formula: C,N,,.
Observable Characteristics - Physical State (as shipped) : Liquid; Color: Colorless; Odor: Like
gasoline.
Physical and Chemical Properties - Physical State at 15 "c and I atm. : Liquid; Molecular Weight:
128.3; Boiling Point at I atm.: 304, 151, 424; Freezing Point: -64.3, -53.5, 219.7; Critical
Temperature: 610.5, 321.4, 594.6; Critical Pressure: 335, 22.8, 2.31; Specijic Gravity: 0.718 at 20
"C (liquid); Vapor (Gas) Specific Gravity: 4.4; Ratio of Specific Heats of Vapor (Gas): 1.042 at 16°C;
Latent Heat of Vaporization: 127, 2.95; Heat of Combustion: -19,067, -10,593, -443.21; Heat of
Decomposition: Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Self-contained breathing
apparatus for vapor concentrations; goggles or face shield; rubber gloves; Symptoms Following
Exposure: Inhalation of concentrated vapor causes depression, irritation of respiratory tract, and
pulmonary edema. Liquid can irritate eyes and (on prolonged contact) skin. Ingestion causes irritation
of mouth and stomach. Aspiration causes severe lung irritation, rapidly developing pulmonary edema,
and central nervous system excitement followed by depression; General Treatment for Exposure:
INHALATION: remove victim from exposure; give artificial respiration if needed. EYES: irrigate with
large amounts of water for 15 min. SKIN: flush with water; wash with soap and water. INGESTION:
do NOT indue vomiting; call a physician. ASPIRATION: enforce bed rest; give oxygen; get medical
attention; Toxicity by Inhalation (Threshold Limit Value): Data not available; short-Term Inhalation