Page 126 - Handbook of Hazardous Chemical Properties

116 DICHLORODIFLUOROMETHANE

DICHLORODIFLUOROMETHANE
Chemical Designations - Synonyms: Eskimon 12; Genetron 12; F-12; Halon 122; Freon 12; Isotron
12; Frigen 12; Ucon 12; Chemical Formula: CCI,F,.
Observable Characteristics - Physical State (as normally shipped): Liquefied compressed gas; Color:
Colorless; Odor: Odorless; slight; characteristic.
Physical and Chemical Properties - Physical State at 15 “c and I atm. : Gas; Molecular Weight:
120.91; Boiling Point at 1 atm.: -21.6, -29.8,243.4; Freezing Point: -251.9, -157.7, 115.5; Critical
Temperature: 233.2, 111.8, 385; Critical Pressure: 598, 40.7, 4.12; Specific Gravity: 1.35 at 15°C
(liquid); Vapor (Gas) Density: 4.2; Ratio of SpeciJc Heats of Vapor (Gas): 1.129; Latent Heat of
Vaporization: 140, 77.9, 3.26; Heat of Combustion: Not pertinent; Heat of Decomposition: Not
pertinent.
Health Hazards Information -Recommended Persod Protective Equipment: Rubber gloves, goggles;
Symptoms Following Epsure: INHALATION: some narcosis when 10% in air is breathed; General
Treatment for Exposure: Remove patient to non-contaminated area and apply artificial respiration if
breathing has stopped; call a physician immediately; oxygen may be given; Toxicity by Inhalation
(Threshold Limit Value): 1000 ppm; Short-Term Exposure Limits: 5000 ppm for 60 min.; Toxicity by
Ingestion: Not pertinent; Late Toxicity: None; Vapor (Gas) Zmhnt Characteristics: None, except at
very high concentrations, which may irritates lungs; Liquid or Solid Irritm Characteristics: No
appreciable hazard. Practically harmless to the skin because it is very volatile and evaporates quickly;
Odor Threshold Data not available.
Fire Hazards - Flash Point : Not flammable; Flammable Limits in Air (%): Not flammable; Fire
Extinguishing Agents: Not pertinent; Fire Extinguishing Agents Not to be Used: Not pertinent; Special
Hazards of Combustion Products: Although nonflammable, dissociation products generated in a fire
may be irritating or toxic; Behavior in Fire: Helps extinguish fire; Ignition Temperature : Not
flammable; Electrical Hazard: Not pertinent; Burning Rate: Not flammable.
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: Not pertinent; Inhibitor of Polymeriz&‘on: Not pertinent.

1,2-DICHLOROETRYLENE
Chemical Designations - Synonyms: Acetylene Dichloride; sym-Dichloroethylene; Dioform; cis- or
trans- 1 ,ZDichloroethylene; Chemical Formula: ClCH = CHCl.
Observable Characteristics - Physical State (as normally shipped) : Liquid; Color: Colorless; Odor:
Ethereal, slightly acrid; pleasant, chloroform-like.
Physical and Chemical Properties - Physical State at I5 “c and I atm. : Liquid; Molecular Weight:
97.0; Boiling Point at I atm.: cis: 140, 60, 333; trans: 118, 48, 321; Freezing Point: cis: -114, -81,
192; trans: -58, -50, 223; Critical Temperature: Not pertinent; Critical Pressure: Not pertinent;
Specijk Gravity: 1.27 at 25°C (liquid); Vapor (Gas) Density: 3.34; Ratio of SpeciJTc Heats of Vapor
-
(Gar): 1.1468; Latent Heat of Vaporization: 130, 72, 3.0; Heat of Combustion: -4,847.2, -2,692.9,
112.67; Heat of Decomposition: Not pertinent.
Health Hazards Information - Recommended Personal Protective Equipment: Rubber gloves; safety
goggles; air supply mask or self-contained breathing apparatus; Symptoms Following Exposure:
Inhalation causes nausea, vomiting, weakness, tremor, epigastric cramps, central nervous depression.
Contact with liquid causes irritation of eyes and (on prolonged contact) skin. Ingestion causes slight
depression to deep narcosis; General Treatmentfor Exposure: INHALATION: remove from further
exposure; if breathing is difficult, give oxygen; if victim is not breathing, give artificial respiration,
preferably mouth-to-mouth; give oxygen when breathing is resumed; call a physician. EYES: flush with
water for at least 15 min. SKIN: wash well with soap and water. INGESTION: give gastric lavage and
cathartics; Toxicity by Inhalation (ThresholdLimit Value) : 200 ppm; Short-Term ExposureLimits: Data
not available; Toxicity by Ingestion: Grade 2; oral LD, 770 mg/kg (rat); Late Toxicity: Produces liver
and kidney injury in experimental animals; Vapor (Gas) Irritant Characteristics: Data not available;
Liquid or Solid Irritant Characteristics: Data not available; Odor Threshold Data not available.