Page 73 - Handbook of Hazardous Chemical Properties

N-BUTYL MERCAPTAN 63
Vapor (Gas) Density: 2.49; Ratio of Specijic Heats of Vapor (Gas): Data not available; Latent Heat of
Vaporization: 180, 100,4.2; Heat of Combustion: -15,200, -8,470, -354; Heat of Decomposition: Not
pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Clean protective
clothing; rubber gloves; chemical worker's goggles; self-contained breathing apparatus; Symptoms
Following Exposure: Inhalation: intolerable odor and irritation; respiratory injury may occur at higher
levels. Ingestion causes irritation of mouth and stomach. Contact with either liquid or vapor may cause
burns of eyes. Liquid produces frostbite-type of skin burn if free to evaporate; if confined to skin, bum
may cause skin sensitization; not readily absorbed in toxic amounts; General Treatment for Exposure:
INHALATION: if any ill effects occur, immediately remove person to fresh air and get medical help;
if breathing stops, start artificial respiration. INGESTION: induce vomiting promptly and get medical
help. EYES: promptly flush with plenty of water for at least 15 min. and get medical help. SKIN:
promptly flush with plenty of water; remove all contaminated clothing and wash before reuse; Toxicity
by Inhalation (Threshold Limit Value): Data not available; Short-Term Exposure Limits: Data not
available; Toxicity by Ingestion: Grade 2; oral LD,, 1,410 mg/kg (rat); Late Toxicity: Data not
available; Vapor (Gas) Irritant Characteristics: Data not available; Liquid or Solid Irritant
Characteristics: Data not available; Odor Threshold Data not available.
Fire Hazards - Flash Point (deg. F):20 OC; Flammable Limits in Air (96): 1.5 - 18.3; Fire
Extinguishing Agents: Dry chemical, alcohol foam, carbon dioxide; Fire Extinguishing Agents Not To
Be Used Water may be ineffective; Special Hazards of Combustion Products: No data; Behavior in
Fire: Containers may explode in fires. Apply water to cool containers from a safe distance; Ignition
Temperature (deg. F): 959; Electrical Hazard No data; Burning Rae: No data.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: No data;
Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent;
Polymerization: May occur when the product is in contact with strong acids and bases; Inhibitor of
Polymerization: No data.
N-BUTYL MERCAPTAN
Chemical Designations - Synonyms: 1-Butanethiol; Thiobutyl Alcohol; Chemical Formula:
CH,CH,CH,CH,SH.
Observable Characteristics -Physical State (as normally shipped): Liquid; Color: Colorless to yellow;
Odor: Strong skunk-like.
Physical and Chemical Properties - Physical State at 15 'C and I atm. : Liquid; Molecular Weight:
90.2; Boiling Point at 1 atm.: 209.3, 98.5, 371.7; Freezing Point: -176.2, -115.7, 157.5; Critical
Temperalure: 554, 290, 563; Critical Pressure: 572, 38.9, 3.94; Specific Gravity: 0.841 at 20°C
(liquid); Vapor (Gus) Density: 3.1; Ratio of Speciflc Heats of Vapor (Gas): 1.0770 at 16°C; Latent
Heat of Vaporization: 154.0, 85.58, 3.583; Heat of Combustion: -16,601, -9,223, -386; Heat of
Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Plastic gloves, goggles;
self-contained breathing apparatus; Symptoms Following Exposure: Inhalation causes loss of sense of
smell; muscular weakness, convulsions, and respiratory paralysis may follow prolonged exposure.
Contact of liquid with eyes or ski causes slight irritation. Ingestion causes MUS=; Geneml Treatment
for Exposure: INHALATION: remove victim from contaminated atmosphere; give artificial respiration
and oxygen if needed; observe for signs Of pUh0Mry edema. EYES: wash with plenty of water; see
a physician. SKIN: wash with soap and water. INGESTION: induce vomiting and follow with gastric
lavage; Toxiciv by Inhalation (Threshold Limit Value): 0.5 ppm; Short-Term Exposure Limits: Data
not available; Toxicity by Ingestion: Grade 2; oral LD,, 1,500 mg/kg (rat); Late Toxicity: Data not
available; Vapor (Gas) Irritant Characteristics: Data not available; Liquid or Solid Irritant
Characteristics: Data not available; Odor Threshold 0.001 ppm.
Fire Hazards - Flash Point (deg. F): 53 OC; Flammable Limits in Air (%): No data; Fire Extinguishing
Agents: Dry chemical, alcohol foam, carbon dioxide; Fire Extinguishing Agents Not To Be Used
Water; Special Hazards of Combustion Products: Irritating sulfur dioxide; Behavior in Fire: Vapors