Page 132 - Handbook of Hazardous Chemical Properties

122 DIETHANOLAMINE

DIETHANOLAMINE
Chemical Designations - Synonym: Bist(2-hydroxyethy1)amine; DEA; 2,2'-Dihydroxydiethyl Amine;
Di(2-hydroxyethy1)amine; 2,2'-Iminodiethanol; Chemical Formula: (HOCH,CH,),NH.
Observable Characteristics - Physical State (as normally shipped): Liquid; Color: Colorless; Odor:
Mild ammoniacal; faint, fishy; characteristic.
Physical and Chemical Properties - Physical State at I5 "c and I atm.: Solid; Molecular Weigk.
105.14; Boiling Point at I atm.: 515.1, 268.4, 541.6; Freezing Point: 82, 28, 301; Critical
Temperature: 828,442,715; Critical Pressure: 470,32,3.2; Specijic Gravity: 1.095 at 28°C (liquid);
Vapor (Gas) Density: Not pertinent; Ratio of Specijic Heats of Vapor (Gas): 1.053; Latent Heat of
Vaporization: 266,148,6.20; Heat ofcombustion: -10,790, -6,000, -251; Heat ofDecomposition: Not
pertinent.
Health Hazards Information -Recommended Personal Protective Equipment: Full face mask or amine
vapor mask only, if required; clean body covering clothing, chemical goggles; Symptoms Following
Exposure: Irritation of eyes and skin. Breathing vapors may cause coughing, a smothering sensation,
nausea, headache; General Treatmentfor Exposure: INHALATION: no problem likely. Get medical
attention if ill effects develop. INGESTION: induce vomiting if large amounts are swallowed and call
a physician. Treat symptomatically. No known antidote. EYES: flush with plenty of water for at least
15 min. and get medical attention promptly. SKIN: flush with water . Wash contaminated clothing
before reuse; Toxicity by Inhalation (Threshold Limit Value): Not pertinent; Short-Term Exposure
Limits: Not pertinent; Toxicity by Ingesfion: Grade 2; LD,, 0.5 to 5 g/kg (rat); Late Taxicity: Data not
available; Vapor (Gas) Zrritant Characteristics: Vapors cause moderate irritation such that personnel
will find high concentrations unpleasant. The effect is temporary; Liquid or Solid Irritant
Characteristics: Causes smarting of the skin and first-degree burns on short exposure and may cause
secondary burns on long exposure; Odor Threshold Data not available.
Fire Hazards -Flash Point (deg. F): 305 OC; Flammable Limits in Air (96): 1.6 (calc.)- 9.8 (est); Fire
Extinguishing Agents: Water, alcohol foam, carbon dioxide, dry chemical; Fire Extinguishing Agents
Not to be Used: Addition of water may cause frothing; Special HazardF of Combustion Products:
Irritating vapors are generated when heated; Behavior in Fire: Not pertinent; Ignition Temperature
(deg. F): 1224; Electrical Hazard: Not pertinent; Burning Rate: 0.74 mm/min.
Chemical Reactivity - Reactivity with Water : No reaction; Reactivity with Common Materials: No
reaction; Stability During Tmport: Stable; Neutralizing Agents for Acids and Caustics: Flush with
water; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent.

DIETHYLAMINE
Chemical Designations - Synonyms: DEN; Chemical Formula: (CH,CH,),NH
Observable Characteristics - Physical State (as normally shipped) : Liquid; Color: Colorless; Odor:
Ammoniacal; sharp, fishy.
Physical and Chemical Properties - Physical State at I5 "c and I am. : Liquid; Molecular Weight:
73.14; Boiling Point at 1 atm.: 132, 55.5, 328.7; Freezing Point: -57.6, -49.8, 223.4; Critical
Temperature: 434.3,223.5,496.7; Critical Pressure: 538,36.6,3.71; Spec@c Gravity: 0.708 at20"C
(liquid); Vapor (Gas) Density: 2.5; Ratio of Specific Heats of Vapor (Gas): 1.079; Latent Heat of
Vaporization: 170,93,3.9; Heat of Combustion: -17,990, -9,994, -418.4; Heat ofDecomposition: Not
pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Chemical safety
goggles, rubber gloves, and apron; Symptoms Following Z5posure: Irritation and burning of eyes, skin
and respiratory system. High concentration of vapor can cause asphyxiation; General Treatment for
Exposure: In case of contact, flush skin or eyes with plenty of water for at least 15 min.; for eyes, get
medical attention; Toxicity by Inhalation Freshold Limit Value) : 25 ppm; Short-Term ExposureLimits:
100 ppm for 30 min.; Toxicity by Ingestion: Grade 2; 0.5 to 5 g/kg (rat); Late Toxicity: None; Vapor
(Gas) Zm'tant Characteristics: Vapor is moderately irritating such that personnel will not usually
tolerate moderate or high vapor concentrations; Liquid or Solid Irritant Characteristics: Minimum
hazard. If spilled on clothing and allowed to remain, may cause smarting and reddening of the skin;