Page 76 - Handbook of Hazardous Chemical Properties

66 N-BUTYRIC ACID
Health Hazards Information - Recommended Personal Protective Equipment: Protective goggles,
gloves, and organic canister gas mask; Symptoms Following Exposure: Inhalation will cause irritation
and possibly nausea, vomiting, headache, and loss of consciousness. Contact with eyes causes burns.
Skin contact may be irritating; General Treament for Exposure: INHALATION: remove victim to
fresh air; if breathing has stopped, give artificial respiration; if breathing is difficult, give oxygen; call
a doctor at once. SKIN AND EYES: immediately flush with water for at least 15 min.; get medical
attention for eyes; remove contaminated clothing and wash underlying skin; Toxicity by Inhalation
(Threshold Limit Value): Data not available; Short-Tern Exposure Limits: Data not available; Toxicity
by Ingestion: Grade 1; 5-15 glkg (rat); 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: Minimum hazard. If
spilled on clothing and allowed to remain, may cause smarting and reddening of the skin; Odor
l3reshold 0.0046 ppm.
Fire Hazards - Flash Point (deg. F): 15 OC, 20 CC; Flammable Limits in Air (96): 2.5 - 10.6; Fire
Extinguishing Agents: Dry chemical, carbon dioxide, foam; Fire Extinguishing Agents Not To Be Used
Not pertinent; Special Hazards of Combustion Products: Not pertinent; Behavior in Fire: Vapors are
heavier than air and may travel considerable distances to a source of ignition and flash back. Fires are
difficult to control because of recognition; Ignition Temperature (deg. F): 446; Electrical Hazard Not
pertinent; Burning Rate: 4.4 mm/min.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: No
reactions; Stability During Tmport: Stable; Neutralizing Agents for Acids and Cwtics: Not pertinent;
Polymeriz&'on: May occur in the presence of heat, acids or alkalis; Inhibitor of Polymerization: None.

N-BUTYRIC ACID
Chemical Designations - Synonyms: Butanic Acid; Butanoic Acid; Butyric Acid; Ethylacetic Acid;
Propanecarboxylic Acid; Chemical Formula: CH,CH,CH,COOH.
Observable Characteristics - Physical State (as normully shipged): Liquid; Color: Clear; Odor:
Rancid, disagreeable; strong, penetrating, like rancid butter.
Physical and Chemical Properties - Physical State at I5 and I atm. : Liquid; Molecular Weight: 88.1;
Boiling Point at I am.: 327, 164,437; Freezing Point: 23, -5,268; Critical Temperature: 611, 355,
628; Critical Pressure: 764,52,5.3; Specific Gravity: 0.958 at 20°C; Vapor (Gas) Density: 3.0; Ratio
of Specijic Heats of Vapor (Gas): 1.079 at 20°C; Latent Heat of Vqorization: 167, 92.7, 3.88; Heat
of Combustion: -10,620, -5,900, -247; Heat of Decomposition: Not pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Self-contained breathing
apparatus; rubber gloves; vapor-proof plastic goggles; impervious apron and boots; Symptoms
Following Exposure: Inhalation causes irritation of mucous membrane and respiratory tract; may cause
nausea and vomiting. Ingestion causes irritation of mouth and stomach. Contact with eyes may cause
serious injury. Contact with skin may cause burns; chemical is readily absorbed through the skin and
may cause damage by this route; General Treatment for Exposure: INHALATION: remove victim to
fresh air; give oxygen if breathing is difficult; call a physician. INGESTION: give large amount of
water and induce vomiting. EYES: irrigate with water for 15 min. and get medical attention. SKIN:
flush affected areas immediately and thoroughly with water; Toxicity by Inhalation (Threshold Limit
Value): Data not available; Short-Tern Exposure Limits: Data not available; Toxicity by Ingestion:
Grade 2; oral LD,, 2,940 mg/kg (rat); Late Toxicity: Data not available; Vapor (Gas) Irritant
Characteristics: Vapors cause moderate irritation. The effect is temporary; Liquid or Solid Irritant
Characteristics: Fairly severe skin irritant. May cause pain and second-degree burns after a few minu-
tes of contact; Odor ZRreshold 0.001 ppm.
Fire Hazards - Hash Point (deg. F): 166 OC, 160 CC; Flammable Limits in Air (96): 2.19 - 13.4; Fire
Extinguishing Agents: Dry chemical, alcohol foam, carbon dioxide; Fire Extinguishing Agents Not To
Be Used Water may be ineffective; @ecial Hazards of Combustion Products: No data; Behavior in
Fire: No data; Ignition Temperature (deg. F): 842; Electrical Hazard: No data; Burning Rate: 2.7
mm/min.