Page 127 - Handbook of Hazardous Chemical Properties

DICHLOROMETIIANE 117

Fire Hazards - Flash Point (deg. F): 37CC; Flammable Limits in Air (%): 9.7 - 12.8; Fire
Extinguishing Agents: Dry chemical, foam, carbon dioxide; Fire Extinguishing Agents Not to be Used:
Water my be ineffective; Special Hazards of Combustion Proahcts: Phosgene and hydrogen chloride
fumes may form in fires; Behavior in Fire: Vapor is heavier than air and may travel a considerable
distance to a source of ignition and flash back; Ignition Temperature : Data not available; Electrical
Hazard: Data not available; Burning Rate: 2.6 dmin.
Chemical Reactivity - Reactivity with Water: No reaction; Reactivity with Common Materials: No
reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent;
Polymerization: Will not occur under ordinary conditions of shipment. The reaction is not vigorous;
Inhibitor of Polymerization: None used.

DICHLOROETHYL ETHER
Chemical Designations - Synonyms: Bis(2-chloroethyl) Ether; 2,2’-Dichloroethyl Ether;
Dichlorodiethyl Ether; Di-(2-chloroethyl) Ether; Chlorex; DCEE; beta,beta’-Dichloroethyl Ether;
Chemical Formula: (ClCH.J!H,),O.
Observable Characteristics - Physical State (as normally shipped) : Liquid; Color: Colorless; Odor:
Sweet, like chloroform.
Physical and Chemical Properties - Physical State at 15 ‘C and 1 atm. : Liquid; Molecular Weight:
143.0; Boiling Point at 1 atrn.: 353, 178, 451; Freezing Point: -62, -52, 221; Critical Temperature:
Not pertinent; Critical Pressure: Not pertinent; Specipc Gravity: 1.22 at 20°C (liquid); Vapor (Gas)
Density: 4.93; Ratio ofSpecipc Heats of Vapor (Gas): 1.0743; Lutent Heat of Vaporization: 143,79.5,
3.33; Heat of Combustion: -7,530, -4,180, -175; Heat of Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Goggles or face shield;
rubber gloves; protective clothing; Symptoms Following Exposure: Inhalation of vapor causes irritation
of nose, coughing, nausea. Liquid irritates eyes and causes mild irritation of skin. (Can be absorbed
in toxic amounts through the skin). Ingestion causes irritation of mouth and stomach, symptoms of
systemic poisoning; General Treatment for Exposure: INHALATION: remove from exposure; support
respiration; call physician if needed. EYES: irrigate with copious quantities of water for 15 min.; call
physician. SKIN: wipe off, wash well with soap and water. INGESTION: induce vomiting; get medical
attention; Toxicity by Inhalation (ThresholdLimit Value): 5 ppm; short-Term Exposure Limits: 35 ppm
for 30 min.; Toxicity by Ingestion: Grade 3; oral LD, 75 mg/kg (rat); Late Toxicity: Said to be
carcinogenic; Vapor (Gas) Im-tant Characteristics: Vapors are moderately irritating such that personnel
will not usually tolerate moderate or high vapor concentrations; Liquid or Solid Irritant Characteristics:
Causes smarting of the skin and first-degree bums on short exposure; may cause second-degree burns
on long exposure; Odor Zkreshold Data not available.
Fire Hazards - Flash Point (deg. FJ: 180 OC; 131 CC; Flammable Limits in Air (%): Data not
available; Fire Extinguishing Agents: Water, foam, dry chemical, carbon dioxide; Fire Extinguishing
Agents Not to be Used: Not pertinent; Special Hazards of Combustion Products: May form phosgene
or hydrogen chloride in fires; Behavior in Fire: Not pertinent; Ignition Temperamre (deg. F): 696;
Electrical Hazard: Data not available; Burning Rate: 2.4 mm/min.
Chemical Reactivity - Reactivity with Water : No reaction; Reactivity with Common Materials: No
reaction; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent;
Polymerization: V; Inhibitor of Polymerization: Not pertinent.

DICHLOROMETBANE
Chemical Designations - 5)Jnonyms: Methylene Chloride; Methylene Dichloride; Chemical Formula:
CH,CI,.
Observable Characteristics - Physical State (as normally shipped) : Liquid; Color: Colorless; Odor:
Pleasant, aromatic; like chloroform; sweet, ethereal.
Physical and Chemical Properties - Physical State at 15 ‘C and I atm. : Liquid; Molecular Weight:
84.93; Boiling Point at I atm.: 104, 39.8, 313; Freezing Point: -142, -96.7, 176.5; Critical
Temperature: 473, 245, 518; Critical Pressure: 895, 60.9, 6.17; Specific Gravity: 1.322 at 20°C