Edwards TCU 40/80 - Page 71

PHYSICAL AND CHEMICAL PROPERTIES
Physical Data
Boiling Point -46.7 C (-52, 1 F) Average
Vapor Pressure 182.1 psia at 25 deg C (77 deg F)
%Volatiles 100WT%
Evaporation Rate (CL4 = 1)
Greater than 1
Solubility in Water Not determined
Odor slight ethereal
Form Liquefied gas
Color Clear, colorless
Specific Gravity 1.05 @25C(77F)
STABILITY AND REACTIVITY
Chemical Stability
Material is stable. However, avoid open flames and high temperatures.
Incompatibility with Other Materials
Incompatible with active metals, alkali or alkaline earth metals - powdered Al, Zn, Be, etc.
Polymerization
Polymerization will not occur.
Other Hazards
Decomposition Decomposition products are hazardous. "SUVA" HP62 can be decomposed by
high temperatures (open flames glowing metal surfaces, etc) forming
hydrochloric and hydrofluoric acids, and possibly carbonyl halides.
TOXICOLOGICAL INFORMATION
Animal Data
The blend is untested.
HFC-125
Inhalation 4-hour ALC: >709,000 ppm in rats
Single high inhalation exposures caused decreased activity, labored breathing and weight loss. Cardiac
scnsitization occurred in dogs exposed to concentrations of 10-30% in air and given an intravenous
epinephrine challenge; no cardiac sensitization occurred at a concentration of 7.5%.
No animal data are available to define carcinogenic hazards. HFC-125 did not cause cmbryotoxicity or
developmental toxicity in rats or rabbits at inhalation concentrations up
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TCU 40/80 Temperature Control Unit 65