Page 181 - Handbook of Hazardous Chemical Properties

ETHYL MERCAPTAN 171

ETHYL LACTATE
Chemical Designations - Synonyms: Ethyl Alpha-hydroxy-propionate; Ethyl 2-hydroxypropanoate;
Ethyl DL-Lactate; Lactic Acid; Ethyl Ester; Chemical Formula: CH3CHOHCOOC,H,,
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless; Odor: Mild
characteristic.
Physical and Chemical Properties - Physical State at 15 “c and I atm: Liquid; Molecular Weight:
118.1; Boiling Point at I atm: 309, 154,427; Freezing Point: Not pertinent; Critical Temperature: Not
pertinent; Critical Pressure: Not pertinent; Specific Gravity: 1,03 at 20°C (liquid); Vapor (Gas)
Specific Gravity: Not pertinent; Ratio of Specific Heats of Vapor (Gar): Not pertinent; Latent Heat of
Vaporization: Not pertinent; Heat of Combustion: (est.) -1 1,600, -6,500, -270; Heat ofDecomposition:
Not pertinent.
Health Hazards Information -Persod Protective Equipment: Goggles or face shield; rubber gloves.
Symptoms Following Exposure: Inhalation of concentrated vapor may cause drowsiness. Contact with
liquid causes mild irritation of eyes and (on prolonged contact) skin. Ingestion may cause narcosis.
Treatment for Exposure: INHALATION: remove victim to fresh air. EYES and SKIN: flush well with
water. INGESTION: induce vomiting; get medical attention. Toxicity by Inhalation (Threshold Limit
Value): Data not available; Short-Term Inhalation Limits: Data not available Toxicity by Ingestion:
Grade 2; oral LD,, = 2,580 mg/kg; 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): 1.58 OC; 115 CC; Flammable Limits in Air (W): 1.5 - 11.4; Fire
Extinguishing Agents: Water, dry chemical, alcohol foam, carbon dioxide; Fire Extinguishing Agents
Not To Be Used: Not pertinent; Special Hazards of Combustion Products: Not pertinent; Behavior in
Fire: Not pertinent; Ignition Temperature (deg. F): 752; Electrical Hazard: Data not available; Burning
Rate: Data not available.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: No
reaction; stability During Transport: Stable; Neutralizing Agents for Acidr and Caustics: Not pertinent;
Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.
ETWL MERCAPTAN
Chemical Designations - Synonyms: Ethanethiol; Ethyl Sulfhydrate; Mercaptoethane; Thioethyl
alcohol; Chemical Formula: C,H,SH.
Observable Characteristics - Physical State (as shipped): Liquid; Color: Colorless to yellow; Odor:
Strong chunk; offensive garlic.
Physical and Chemical Properties - Physical State at 15 “c and I am: Liquid; Molecular Weight:
62,l; Boiling Point at1 atm: 93,9,34,4,307,6; Freezing Point: -234, -147, 126; Critical Temperature:
439,226,499; Critical Pressure @sia. atm, MN/m): 798,54.2,5.50; Specific Gravity: 0.826 at 20°C
(liquid); Vapor (Gas) Specijic Gravity: 2.1; Ratio of Specific Heats of Vapor (Gas): 1.1308 at 16°C;
Latent Heat of Vaporization: 189, 105, 4,39; Heat of Combustion: -15,OOO, -8,300, -350; Heat of
Decomposition: Not pertinent.
Health Hazards Information -Personal Protective Equipment: Plastic gloves; goggles or face shield.
Symptoms Following Exposure: Inhalation of vapor causes muscular weakness, convulsions, respiratory
paralysis. High concentrations may cause pulmonary irritation. Liquid irritates eyes and skin. Ingestion
causes nausea and irritation of mouth and stomach. Treatment for Exposure: INHALATION: move
victim to fresh air; if he is unconscious, give artificial respiration and oxygen; get medical attention.
EYES: flush with water for at least 15 min. following contact with liquid; get medical attention if
irritation persists. SKIN: wash well with water. INGESTION: induce vomiting and follow with gastric
lavage; get medical attention. Toxicity by Inhalation (Threshold Limit Value): 0.5 ppm Short-Tern
Inhalation Limits: Data not available Toxicity by Ingestion: Grade 2; oral LD,, = 682 mg/kg (rat) Late
Toxicity: May impair respiratory muckle function in warm-blooded experimental animals Vapor (Gas)
Irritant characteristics: Data not available Liquid or Solid Irritant Characteristics: Data not available
Odor Threshold: 0.001 ppm.