GB
CAS No. 22043, Molecular Formula C₂ClF₅
76-15-3; CF₃CF₂Cl
molecular weight of 154.46

colorless gas; 226.88kPa vapor pressure (25 ° C); the temperature -77 ° C; boiling point -39 ° C; solubility : not soluble in water, soluble in alcohol, ether; density : relative density (water = 1) 1.57 (-42 ° C); the relative density (Air = 1) 5.6; Stability : stability; risk Marker 5 ( Unburning gases); the main purposes : food industry as a refrigerant, Sol sprays, insulation gas, etchant

2. The impact on the environment :
a health hazard

pathways : inhalation.
health hazards : Inhalation of high concentrations of the goods, which may lead to abnormal heartbeat, coma or even death. Contact with the liquid can goods to frostbite.

two, toxicology information and environmental behavior

acute toxicity : LC₅₀ > 5040000mg/m3, 4 hours (rat inhalation).
subacute and chronic toxicity : rats inhaled concentration of 10% of the goods, six hours / day, no impact.
hazardous characteristics : not in the air combustion explosion occurred. Decomposition by high fever and emit toxic fluoride and chloride gas. In case of high fever, increased pressure within containers, cracking and the risk of explosion.
combustion (decomposition) product : chloride, fluoride.

3. Emergency Monitoring Methods :
Instrumental

4. Laboratory monitoring methods : gas chromatography

5. Environmental standards :
American plant health standards 6320mg/m3

6. Emergency treatment and disposal methods :
a leakage contingency

rapid withdrawal of staff from air leakage supremacy wind and isolation and strict restrictions on access. Recommended emergency personnel wearing respirators-positive pressure self-sufficiency, wearing overalls general operations. As far as possible, cut off the source of leakage. A reasonable ventilation, accelerated proliferation. Leak will be moved to empty containers, attention to ventilation. Leak containers should be properly handled, repair, testing later use.

two protective measures

respiratory protection : general need special protection. High concentrations can wear contact since suction filtered gas masks (half-mask).
eye protection : general need special protection.
physical protection : general operating wear uniforms.
hand protection : Wear protective gloves general operations.
other : avoid high concentrations of respirable.

three, and emergency measures

contact with the skin : If frostbite, medical care treatment.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. If breathing is difficult, give oxygen. If breathing stop immediately mouth. Medical treatment.

fire fighting methods : This Unburning. Cut off the gas source. Cooling water containers, if possible to move containers from the scene empty Department. Extinguishing agents : water mist.