Page 326 - Handbook of Hazardous Chemical Properties

316 PHOSPHORUS "RIBROMIDE
Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 2.03 at 20 "C (solid); Vapor (Gas)
Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gas): Not pertinent; Latent Heat of
Vqorizm'on: 184, 102,4.27; Heat of Combustion: -10.890, -6.050, -253.3; Heat of Decomposition:
Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipm*nt: Chemical safety
goggles; plastic face shielding; self-contained or air-line respirator; Symptoms Following Exposure:
Hydrogen sulfide gas formed by reaction with moisture can cause death be respiratory failure. The gas
also irritates eyes and respiratory system. The solid irritates skin and eyes; the symptoms may be
delayed several hours; General Treatment for Exposure: INHALATION: remove victim from
contaminated area; if breathing has stopped, begin artificial respiration. INGESTION induce vomiting;
call a physician. SKIN: remove contaminated clothing and wash areas with copious large amounts of
water. EYES: flush with large amounts of water; Toxicity by Inhalation (ThreshoMLim't Value): 10
ppm; Short-Tenn Inhalation Limits: 20 ppm. for 5 min. (hydrogen sulfide); Toxicity by Ingesrion: Data
not available; Late Toxicity: Data not available; Vapor (Gas) Irritant (;7uuactristics: Hydrogen sulfide
gas formed by reaction with moisture, cause severe irritation of eyes and throat and can cause eye and
lung injury. It cannot be tolerated even at low concentrations; Liquid or Solid Irritant Characteristics:
Minimum hazard. If spilled on clothing and allowed to remain, may cause smarting and reddening of
skin; Odor Threshold 0.0047 ppm. (hydrogen sulfide).
Fire Hazards - Flash Point : Flammable solid; Fldk Limits in Air (%): Not pertinent; Fire
Extinguishing Agents: Sand and carbon dioxide; Fire Extinguishing Agents Not to be Used: Water;
Special Hazards of Combustion Products: Products of combustion include sulfur dioxide and
phosphorus pentoxide, which are irritating, toxic and corrosive; Behavior in Fire: Not pertinent;
Ignition Temperature (deg. F): 527 (liquid); Electrical Hazard Not pertinent; Bunting Rate: Not
pertinent.
Chemical Reactivity - Reactivity with Water: Reacts with liquid water or atmospheric moisture to
liberate toxic hydrogen sulfide gas; Reactivity with Common Materials: No reaction; Stability During
Transport: Can be ignited by friction; Neutralizing Agents for Acidr and caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

PHOSPHORUS TRIBROMIDE
Chemical Designations - Synonyms: Phosphorus bromide; Chemical Formula: Pbr,.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless or slightly yellow;
Odor: Pungent; sharp, penetrating.
Physical and Chemical Properties - Physical State at 15 "c and I atm. : Liquid; Molecular Weight:
270.73; Boiling Point at I atm.: 343, 173, 446; Freezing Point: -42.9, 40.5, 232.2; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; Specific Gravity: 2.862 at 30 "C (liquid);
Vapor (Gas) SpeciJic Gravity: Not pertinent; Ratio ofSpeci3c Heats of Vapor (Gas): Not pertinent;
Latent Heat of Vaporization: 64.4, 35.8, 1.50; Heat of Combustion: Not pertinent; Heat of
Decomposition: Not pertinent.
Health Hazards Information -Recommended Personul Protective Equipment: Acid-gas canister-type
mask (full face type emergencies); chemical safety goggles; apron, gloves, clothing, and safety shoes
all made from rubber; Symptoms Following Exposure: Inhalation causes severe irritation of nose,
throat, and lungs. Ingestion causes burns of mouth and stomach. Contact with eyes or skin causes
severe burns; General Treument for Exposure: INHALATION: remove victim to clear air; if
necessary, apply artificial respiration and/or administer oxygen. INGESTION dilute by drinking water.
Then neutralize with milk of magnesia, egg white, etc; do not use sodium bicarbonate. EYES:
immediately flush with large amounts of water for at least 15 min. SKIN: immediately flush with large
amounts of water; remove contaminated clothing; Toxicity by Inhalarion (ThresholdLimit Value): Data
not available; Short-Tenn Inhalation Limits: Data not available; Toxicity by Ingestion: Data not
available; Late Toxicity: Data not available; Vapor (Gas) Im'tant Characteristics: Data not available;
Liquid or Solid Irritant Characteristics: Data not available; Odor Threshold Data not available.
Fire Hazards - Flash Point : Not flammable; Rdle Limits in Air (W): Not flammable; Fire