Page 120 - Handbook of Hazardous Chemical Properties

110 DIBENZOYL PEROXIDE
DIBENZOYL PEROXIDE
Chemical Designations - Synonyms: Benzoyl Peroxide; Benzoyl Superoxide; BP; BPO; Lucidol-70,
Oxylite; Chemical Formula: C,H,CO~O-O~COC,H,.
Observable Characteristics -Physical State (as normally shipped): Solid; Color: White; Odor: None.
Physical and Chemical Properties - Physical State at 15 "c and I atm. : Solid; Molecular Weight:
242.22; Boiling Point at I am.: Not pertinent; Freezing Point: 217, 103, 376; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1.334 at 15 "C (solid); Vapor (Gas)
Density: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vaporizm'on: Not pertinent; Heat of Combustion: Not pertinent; Heat of Decomposition: Not pertinent.
Health Hazards Jnfonnation - Recommended Personal Protective Equipment: Safety goggles, face
shield, rubber gloves; Symptoms Following Exposure: CONTACT WITH EYES OR SKIN: irritates
eyes. Prolonged contact may irritate skin; General Treatment for Exposure: INGESTION administer
an emetic to induce vomiting and call a physician. CONTACT WITH EYES OR SKIN; do not use oils
or ointments; flush eyes with plenty of water, get medical attention; wash skin with plenty of soap and
water; Toxicity by Inhalation (Threshold Limit Value): 5 mg/m3; Short-Tenn Exposure Limits: Not
pertinent; Toxicity by Ingestion: Grade 2; LD,, 0.5 to 5 glkg; Lute Toxicity: No data; Vapor (Gas)
Im'tant Characteristics: Not pertinent; 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 Not pertinent.
Fire Hazards - Flash Point : Highly flammable solid; explosion-sensitive to shock, heat and friction;
Flammable Limits in Air (W): Not pertinent; Fire Extinguishing Agents: Difficult to extinguish once
ignited. Use water spray to cool surrounding area; Fire Extinguishing Agents Not to be Used: Do not
use hand extinguishers; Special Hazards of Combustion Products: Suffocating smoke evolved; Behavior
in Fire: May explode; Ignition Temperature : Data not available; Electrical Hazard: Not pertinent;
Burning Rate: Not pertinent.
Chemical Reactivity -Reactivity with Water : No reaction; Reactivity with Common Materials: Avoid
contamination with combustible materials, various inorganic and organic acids, alkalies, alcohols,
amines, easily oxidizable materials such as ethers, or materials used as accelerators in polymerizations
reactions; Stability During Transport: Extremely explosion-sensitive to shock, heat and friction. Self-
reactive; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent;
Inhibitor of Polymerimion: Not pertinent.

DI-N-BUTYLAMINE
Chemical Designations - Synonyms: 1-Butanamine, -butyl; Dibutylamine; Chemical Fonnula:
(C,H,),NH.
Observable Characteristics - Physical State (as normally shipped): Liquid; Color: Colorless; Odor:
Weak ammonia.
Physical and Chemical Properties - Physical State at 15 "c and 1 am.: Liquid; Molecular Weight:
129.25; Boiling Point at I atm.: 319.3, 159.6, 432.8; Freezing Point: -80, -62, 211; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 0.759 at 20°C (liquid);
Vapor (Gas) Density: 4.5; Ratio of Specipc Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vaporization: 130,72.3,3.03; Heat ofcombustion: -18,800, -10,440, -436.8; HeatofDecomposition:
Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Goggles or face shield;
rubber gloves; Symptoms Following Exposure: Inhalation causes irritation of nose, throat, and lungs;
coughing; nausea; headache. Ingestion causes irritation of mouth and stomach. Contact with eyes causes
irritation. Contact with skin causes irritation and dermatitis; General Treatment for Exposure:
INHALATION: move from exposure; if breathing has stopped, start artificial respiration.
INGESTION: give large amounts of water. EYES: irrigate with water for 15 min. get medical attention
for possible eye damage. SKIN: wash with large amounts of water for 15 min.; Toxicity by Inhalation
(Threshold Limit Value): Data not available; Short-Tenn Exposure Limits: Data not available; Toxicity
by Ingestion: Grade 3; oral LD, 360 mglkg (rat); Late Toxicity: Data not available; Vapor (Gas)