Page 107 - Handbook of Hazardous Chemical Properties

CYANOGEN 97

at least 15 min.; remove contaminated clothing immediately and wash before reuse; discard
contaminated shoes; Toxicity by Inhalation (Threshold Limit Value): 5 ppm; Short-Term Exposure
Limits: Data not available; Toxicity by Ingestion: Grade 2; LD,, 0.5 to 5 g/kg (rat, rabbit); Lute
Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: Vapors cause moderate irritation
such that personnel will find high concentrations unpleasant. The effect is temporary; Liquid or Solid
Irritant Characteristics: Fairly severe skin irritant; may cause pain and second-degree bums after a few
minutes’ contact; Odor Zhreshold 5 ppm.
Fire Hazards - Flash Point (deg. F): 175 - 185 OC; 178 CC; Flammable Limits in Air (’3%): LEL: 1.4
(ortho); 1.1 (meta or para); Fire Extinguishing Agents: Water, dry chemical, carbon dioxide, and foam;
Fire Ektinguishing Agents Not To Be Used Not pertinent; Special Hazards of Combustion Products:
Flammable toxic vapors given off in a fire; Behavior in Fire: Sealed closed containers can build up
pressure if exposed to heat (fire); Ignition Temperature (deg. F): 11 10 (0-cresol); 1038 (m-or p-cresol);
Electrical Hazard Data not available; Burning Rate: Data not available.
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.

CUMENE
Chemical Designations - Synonyms: Cumol; Isopropylbenzene; Chemical Formula: C&,CH(CH,),.
Observable Characteristics - Physical State (as normally shipped) : Liquid; Color: Colorless; Odor:
Strong, slightly irritant; fragrant; aromatic.
Physical and Chemical Properties - Physical State at 15 “c and 1 atm. : Liquid; Molecular Weight:
120.19; Boiling Point at 1 atm.: 306.3, 152.4, 425.6; Freezing Point: -140.9, -96.1, 177.1; Critical
Temperature: 676.2, 357.9, 631.1; Critical Pressure: 465.5, 31.67, 3.208; Speciflc Gravity: 0.866 at
15T (liquid); Vapor (Gas) Density: Not pertinent; Ratio of Specific Heats of Vapor (Gas): 1.059;
Latent Heat of Vaporization: 134, 74.6, 3.12; Heat of Combustion: -17,710, -9,840, -412.0; Heat of
Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: As necessary to avoid
skin exposure. If concentration in air is greater than loo0 ppm, use self-contained breathing apparatus;
Symptoms Following Exposure: narcotic action with long-lasting effects; depressant to central nervous
system; General Trement for Exposure: INHALATION: move patient immediately to fresh air;
administer artificial respiration or oxygen if necessary; seek medical attention. SKIN OR EYES: wash
exposed skin surfaces thoroughly; flush eyes thoroughly with water for 15 min; Toxicity by Inhulation
(Threshold Limit Value): 50 ppm; Short-Term Exposure Limits: Data not available; Toxicity by
Ingestion: Grade 3; LD,,50 to 500 mg/kg; Late Toxicity: None reported; Vapor (Gas) Irritant
Characteristics: Vapors cause a slight smarting of the eyes or respiratory system if present in high
concentration. The effect is temporary; Liquid or Solid Irritant Characteristics: Minimum hazard. If
spilled on clothing and allowed to remain, may cause smarting and reddening of the skin; Odor
Xhreshold 1.2 pprn.
Fire Hazards - Flash Point (deg. F): 111 CC; Flammable Limits in Air (96): 0.9 - 6.5; Fire
Extinguishing Agents: Foam, carbon dioxide, or dry chemical; Fire Extinguishing Agents Not To Be
Used Not pertinent; Special Hazards of Combustion Products: Not pertinent; Behavior in Fire: Not
pertinent; Ignition Temperature (deg. F): 797; Electrical Hazard Data not available; Burning Rate: 50
mm/min.
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.
CYANOGEN
Chemical Designations - Synonyms: Ethanedenitrite; Dicyan; Oxalic Acid Dinitrile; Oxalonitrile;
Dicyanogen; Chemical Fonnula: (CN),,
Observable Characteristics - Physical State (as normally shipped): Liquefied compressed gas; Color: