Page 316 - Handbook of Hazardous Chemical Properties

306 PENTABORANE

ester; Chemical Formula: (Cz&O),PSOC&NOz.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Deep brown to yellow; Odor:
Characteristic.
Physical and Chemical Properties - Physical State at 15 'C and I atm. : Liquid; Molecular Weight:
291.3; Boiling Point at I atria.: Very high; decomposes; Freezing Point: 43, 6, 279; Critical
Temperature: Not pertinent; Critical Pressure: Not pertinent; SpeciJic Gravity: 1.269 at 25 "C (liquid);
Vapor (Gas) Specijic Gravity: Not pertinent; Ratio of Specipc Heats of Vapor (Gas): Not pertinent;
Latent Heat of Vaporization: Not pertinent; Heat of Combustion: -9,240, -5,140, -215; Heat of
Decomposition: Not pertinent.
Health Hazards Infomation -Recommended Personal Protective Equipment: Neoprenecoated gloves;
rubber work shoes or overshoes; latex rubber apron; goggles; respirator or mask approved for toxic
dusts and organic vapors; Symptoms Following Exposure: Inhalation of mist, dust, or vapor (or
ingestion, or absorption through the skin) cause dizziness, usually accompanied by constriction of the
pupils, headache, and tightness of the chest. Nausea, vomiting, abdominal cramps, diarrhea, muscular
twitching, convulsions and possibly death may follow. An increase in salivary and bronchial secretions
may result which simulate severe pulmonary edema. Contact with eyes causes irritation; General
Treatment for Exposure: Call a doctor for all exposure to this compound. INHALATION remove
victim from exposure immediately; have physician treat with atropine injections until full
atropinization; 2-PAh4 may also be administered by physician. EYES: flush with water immediately
after contact for at least 15 min. SKIN: remove all clothing and shoes immediately; quickly wipe off
the affected area with a clean cloth, follow immediately with a shower, using plenty of soap. If a
complete shower is impossible, wash the affected skin repeatedly with soap and water. INGESTION:
if victim is conscious, induce vomiting and repeat until vomit fluid is clear; make victim drink plenty
of milk or water; have him lie down and keep warm; Toxicity by Inhalation FresholdLimit Value):
0.01 mg/m3; Short-Tern ZnhalationLimits: 0.5 mg/m3 for 30 min.; Toxicity by Ingestion: Grade 4, oral
LD,, = 2 mg/kg (rat); Late Toxicity: Birth defects in chick embryos; Vapor (Gas) Zm'tanz
Characteristics: Data not available; Liquid or Solid Irritant Characteristics: Data not available; Odor
Zhreshold 4.04 ppm.
Not
Fire Hazards - Flash Point : Not flammable; Flammable Limits in Air (I): flammable; Fire
Extinguishing Agents: Water o adjacent fires; Fire Extinguishing Agents Not to be Used: High pressure
water hoses may scatter parathion from broken containers, increasing contamination hazard; Special
Hazards of Combustion Prwlucrs: Fumes from decomposing material may contain oxides of sulfur and
nitrogen; Behavior in Fire: Containers may explode when heated; Ignition Temperature : Not pertinent;
Electrical Hazard Not pertinent; Burning Rate: Not pertinent.
Chemical Reactivity -Reactivity with Water: Slow reaction, not considered hazardous; 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.
PENTABORANE
Chemical Designations - Symnyms: (9)-Pentaboron nooahydride; Chemical Formula: B,%.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless; Odor:
Characteristic; strong, pungent; foul; sour milk.
Physical and Chemical Properties - Physical State at 15 "y: and I ah. Liquid; Molecular Weight:
:
63.2; Boiling Point at I atm.: 137.1, 58.4, 33.15; Freezing Point: -52.2, -46.8, 224.6; Critical
Temperature: 441,227,500; Critical Pressure: 570, 38,3.9; Specijic Gm'ty: 0.623 at 20 "C (lquid);
Vapor (Gas) Specijic Gravity: 2.2; Ratio of Speciific Heats of Vqor (Gas): 1.0399; Latent Heat of
Vqorization: 219, 122, 5.10; Heat of Combustion: -29,100, -16,200, -677; Heat ofDecomposition:
Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Self-contained breathing
apparatus or air-line mask; goggles or face shield; rubber gloves and protective clothing; Symptoms
Following Exposure: Inhalation of low concentrations causes dizziness, blurred vision, nausea, fatigue,
light headedness or nervousness; higher concentrations also cause abnormal muscular contractions or