Page 278 - Handbook of Hazardous Chemical Properties

268 METHYLTRICFILOROSILANE

METHYLTRICHLOROSILANE
Chemical Designations - Synonyms: Trichloromethylsilane; Chemical Fonnula: CH,SiCl,,
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless; Odor: Acrid;
sharp, like hydrochloric acid.
Physical and Chemical Properties - Physical State at 15 "c and I atm. : Liquid; Molecular Weight:
149.5; Boiling Point at I atm.: 151.5, 66.4, 339.6; Freezing Point: -130, -90, 183; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.27 at 25 "C (liquid);
Vapor (Gas) Specipc Gravity: 5.16; Ratio of Specific Heats of Vapor (Gas): Data not available; Latent
Heat of Vaporiimion: 89.3, 49.6, 2.08; Heat of Combustion: (est.) -3,000, -1,700, -70; Heat of
Decomposition: Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Full protective clothing;
acrid-vapor-type respiratory protection; rubber gloves; chemical worker's goggles; other protective
equipment as necessary to protect skin and eyes; Symptoms Following Exposure: Inhalation causes
irritation of mucous membrane. Contact with liquid causes severe burns of eyes and skin. Ingestion
causes severe burns of mouth and stomach; General Treament for Exposure: Get medical attention at
once following all exposures to this compound. INHALATION: remove victim from exposure; give
artificial respiration if breathing has ceased. EYES: flush with water for 15 min. SKIN: flush with
water. INGESTION: do NOT induce vomiting; give large amounts of water; Toxicity by Inhalation
(Threshold Limit Value) : Data not available; Short-Tern Inhalation 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 severe irritation of eye and throat and can cause eye and lung injury.
They cannot be tolerated even at low concentrations; Liqw'd 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 Decomposes in moist air, creating HCl with odor threshold of 1 ppm.
Fire Hazards -Flash Point (deg. F): 45 OC; 15 CC; FlmnmableLimh in Air (96): 5.1 - >20; Fire
Extinguishing Agents: Dry chemical, carbon dioxide; Fire Extinguishing Agents Not To Be Used:
Water, foam; Special Hazarak of Combustion Products: Toxic hydrogen chloride and phosgene gases
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; Ignition Temperature (deg. F): > 760;
Electrical Hazard: Data not available; Burning Rate: 1.9 mm/min.
Chemical Reactivity - Reactivity with Water: Reacts violently to form hydrogen chloride, which is
corrosive to metals; Reactivity with Common Materials: Reacts with surface moisture to evolve
hydrogen chloride, which is corrosive to metals; Stability During Transport: Stable; Neutralizing Agents
for Acids and Caustics: Flush with water, rinse with sodium bicarbonate or lime solution;
Polymrization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
METHYL VINYL KETONE
Chemical Designations - Synonyms: 3-Buten-2-one; Chemical Fonnula: CHJOCH = CH,.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless to light yellow;
Odor: Powerfully irritating.
Physical and Chemical Properties - Physical State at I5 "c and I atm. : Liquid; Molecular Weight:
70.1; Boiling Point at I atm.: 178.5, 81.4, 354.6; Freezing Point: 20, -7,266; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specipc Gravity: 0.864 at 20 "C (liquid); Vapor (Gas)
Specific Gravity: 2.4; Ratio of Specific Heats of Vapor (Gas): 1.1053; Latent Heat of Vaporizm'on:
(est.) 203, 113,4.73; Heat of Combustion: (est.) -14,600, -8,100, -340; HeatofDecomposition: Not
pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Self-contained breathing
apparatus with full face piece; rubber gloves; chemical goggles or face piece of breathing apparatus;
Symptoms Following Exposure: Inhalation causes irritation of nose and throat. Vapor causes tears;
contact with liquid can burn eyes. Liquid irritates skin and will cause burn if not removed at once.
Ingestion causes irritation of mouth and stomach; General Treatment for Expowe: Get medical
attention for all exposures to this compound. INHALATION: remove victim to fresh air; administer