Page 142 - Handbook of Hazardous Chemical Properties

132 DIISOBUTnENE

prolonged exposure; plastic gloves; goggles; Symptoms Following Exposure: None expected; General
Treatmentfor Exposure: SKIN AND EYES: flush with water; Toxicity by Inhalation (Threshold Limit
Value): Not pertinent; Short-Tenn Exposure Limits: Not pertinent; Toxicity by Ingestion: Grade 2; LD,
0.5 to 5 glkg (rat); Late Toxicity: Data not available; Vapor (Gas) Irritant Characteristics: None;
Liquid or Solid Irritant Characteristics: None; Odor Threshold Data not available.
Fire Hazards - Flash Point (deg. fl: 162 OC; 165 CC; Flumnable Limits in Air ($6): 0.8 - 6.1; Fire
Extinguishing Agents: Carbon dioxide, dry chemical, alcohol foam; 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): 494 (calc.); Electrical Hazard: Not pertinent; Burning Rate:
Data not available.
Chemical Reactivity - Reactivity with Water : No reaction; Reactivity with Common Materials: No
reaction; Stability During Transport: Stable; Neutralizing Agents forAcids and Caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

DIISOBUTYLENE
Chemical Designations - Synonyms: 2,4,4-Trimethyl-l-pentene; Chemical Formula:
(CH,),CC€&C(CH,) = C€&.
Observable Characteristics - Physical State (as noTmally shipped) : Liquid; Color: Colorless; Odor:
Like gasoline.
Physical and Chemical Properties - Physical State at 15 'C and I atm. : Liquid; Molecular Weight:
112.22; Boiling Point at I am.: 214.7, 101.5, 374.7; Freezing Point: -136.3, -93.5, 179.7; Critical
Temperature: 548,286.7,559.9; Critical Pressure: 380,25.85,2.619; Specific Gravity: 0.715 at 20°C
(liquid); Vapor (Gas) Density: Not pertinent; Ratio of Specific Heats of Vapor (Gas): 1.049; Latent
Heat of Vaporization: 110, 60, 2.5; Heat of Combustion: -18,900, -10,500, -440; Heat of
Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Protective goggles;
Symptoms Following Exposure: Low general toxicity; may act as simple asphyxiate in high vapor
concentrations; General Treament for Exposure: INHALATION remove from exposure; support
respiration; Tonicity by Inhalm'on (Threshold Limit Value): Data not available; Short-Term Exposure
Limits: Data not available; Toxicity by Ingestion: Data not available; Late Toxicity: Liver and kidney
damage in exp. animals; Vapor (Gas) Irritant Characteristics: Vapors are nonirritating to the eyes and
throat; Liquid or Solid Irritant characteristics: Minimum hazard. If spilled on clothing and allowed to
remain, may cause smarting and reddening of the skin, Odor Threshold Data not available.
Fire Hazards - Flash Point (deg. F): 35 (est.); Fkmmble Limits in Air (%): 0.9 LEL (est.); Fire
Extinguishing Agents: Dry chemical, foam, or carbon dioxide; Fire Extinguishing Agents Not to be
Used: Water may be ineffective; Special Hazards of Combustion.Products: Not pertinent; Behavior in
Fire: Not pertinent; Ignition Temperature (deg. F): 788; Electrical Hazard: Not pertinent; Bum'ng
Rate: 7.9 mmlmin.
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.

DIISOBUTYL KETONE
Chemical Designations - Synonyms: DIBK; sym-Diisopropylacetone; 2,6-Dimethyl-4-heptanone;
Isovalerone; Chemical Formula: (CH,),CHC€&COCH.JH(CH,), or C&,O.
Observable Characteristics - Physical State (as nodly shipped): Liquid; Color: Colorless; Odor:
Mild; characteristic ketonic.
Physical and Chemical Properties - Physical State at 15 'C and I ah. : Liquid; Molecular Weight:
142.23; Boiling Point at I ah. : 325, 163, 436; Freezing Point: -43, -42, 231; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 0.806 at 20°C (liquid); Vqor (Gas)
Density: 4.9; Ratio @Specific Heats of Vapor (Gas): Not pertinent; Latent Heat of Vaporization: 121,
67, 2.8; Heat of Combustion: -16, 040, -8,910, -373; Heat of Decomposition: Not pertinent.