Page 161 - Handbook of Hazardous Chemical Properties

DODECYLTRICHLOROSILANE 151

7kreshold: Data not available.
Fire Hazards - Flash Point (deg. F): 174; Flammable Limits in Air (%): Data not available; Fire
Extinguishing Agents: Foam, dry chemical, carbon dioxide; 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): 491; Elecmkal Hazard: Not pertinent; Burning Rate: 5.8 mmlmin.
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.
DODECYLTRICHLOROSILANE
Chemical Designations - Synonyms: No common synonyms; Chemical Formula: CH3(CH&,,SiC13.
Observable Characteristics - Physical State (as normally shipped): Liquid; Color: Colorless; Odor:
Sharp, like hydrochloric acid; pungent and irritating.
Physical and Chemical Properties - Physical State at 15 “c and I am. : Liquid; Molecular Weight:
303.7; Boiling Point at I am.: >300, >149, >422; Freezing Point: Not pertinent; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.03 at 20°C (liquid);
Vapor (Gh) Density: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent; Latent Heat
of Vaporization: Not pertinent; Heat of Combustion: -1 l,OOO, -6,200, -260; Heat of Decomposition:
Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Acid-vapor type
respiratory protection; rubber gloves; chemical worker’s goggles; other protective equipment as
necessary to protect eyes and skin; Symptoms Following Exposure: Inhalation irritates mucous
membrane. Contact with liquid causes severe burns of eyes and skin. Ingestion causes severe burns of
mouth and stomach; General Treatment for Exposure: INHALATION: remove from exposure; support
respiration; call physician if needed. EYES: flush with water for 15 min.; obtain medical attention
immediately. SKIN: flush with water; obtain medical attention if skin is burned. INGESTION: if victim
is conscious, give large amounts of water, then milk or milk of magnesia; Toxicity by Inhalation
(ThresholdLimit Value): Data not available; Short-Term Exposure Limits: Data not available; Toxicity
by Ingestion: Grade 3; LD,, 50 to 500 mg/kg; Late 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: Severe skin irritant.
Causes second- and third-degree burns on short contact and is very injurious to the eyes; Odor
Threshold Data not available.
Fire Hazards -Flash Point (a’eg. F): > 150 OC; FlammableLimits in Air (96): Data not available; Fire
Extinguishing Agents: Dry chemical, carbon dioxide; Fire Extinguishing Agents Not to be Used: Water,
foam; Special Hazards of Combustion Products: Hydrochloric acid and phosgene fumes may form in
fires; Behavior in Fire: Difficult to extinguish; re-ignition may occur. Contact with water applied to
adjacent fires produces irritating hydrogen chloride fumes; Ignition Temperature: Data not available;
Electrical Hazard: Data not available; Burning Rate: Data not available.
Chemical Reactivity - Reactivity with Water : Generates hydrogen chloride (hydrochloric acid);
Reactivity with Common Materials: Reacts with surface moisture to generate hydrogen chloride, which
is corrosive to most metals; Stability During Transport: Stable; Neutralizing Agents for Acids and
Caustics: Flush with water, rinse with sodium bicarbonate or lime solution; Polymerization: Not
pertinent; Inhibitor of Polymerization: Not pertinent.