GB
CAS No. 22044, Molecular Formula CHCl₂F
75-43-4; HCFCl₂
molecular 102.92

slightly chloroform odor similar to the non-flammable gas; vapor pressure 202.645kPa (28.4 ° C); -135 ° C melting point; solubility 8.9 ° Cboiling point : not soluble in water, soluble in ethanol, ether; density : relative density (water = 1) 1.48; the relative density (Air = 1) 3.82; Stability : stability; risk Marker 5 (Unburning gases); the main purposes : as solvents, refrigerants, aerosol sprays

2. The impact on the environment :
a health hazard

pathways : inhalation.
health hazards : rapid suffocation role. Inhalation of high concentrations can cause disorientation, nausea, vomiting, anesthetic effects, arrhythmias, hypotension, or even death.

two, toxicology information and environmental behavior

acute toxicity : LD₅₀210000mg/m3, 4 hours (rat inhalation)
hazardous characteristics : Unburning. In a fire or heat at the surface will break down the highly toxic hydrogen chloride, hydrogen fluoride, but also the way gas. In case of high fever, increased pressure within containers, cracking and the risk of explosion.
combustion (decomposition) products : carbon monoxide, carbon dioxide, hydrogen fluoride, hydrogen chloride.

3. Emergency Monitoring Methods :
Instrumental

4. Laboratory monitoring methods : gas chromatography
"water and wastewater standards test" version : 19, Jiangsu Provincial Environment Monitoring Center

5. Environmental standards :
American plant health standards 4000mg/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. If possible, use immediately. 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. Enter cans, or other restrictive space of high concentration operations, someone custody.

three, and emergency measures

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.