GB No. 23022
CAS No. 7647-19-0
Molecular Formula PF₅
molecular 126.0

colorless, irritating bad smell of gas, moist air severe smoke; boiling point -84.6 ° C; -93.8 ° C melting point; solubility; density : relative density (water = 1) 5.81 (Gas); the relative density (Air = 1) 4.3; Stability : stability; risk Marker 6 (toxic gases, inorganic Judaipin); the main purposes : for gas and catalyst for the polymerization reaction

2. The impact on the environment :
a health hazard

pathways : inhalation.
health hazards : the humid air produces toxic and corrosive hydrogen fluoride. The goods to the skin, eyes, mucous membrane strong stimulus, after inhaling can cause respiratory inflammation and pulmonary edema.

two, toxicology information and environmental behavior

toxicity : with irritation.
hazardous characteristics : moist air produced a white corrosive and irritating fumes of hydrogen fluoride. Decomposition in water emit an incredibly corrosive gases. Case Base decomposition.
combustion (decomposition) product : phosphorus oxide, phosphorus alkanes, hydrogen fluoride.

3. Emergency Monitoring Methods :
speed test tube; Ion selective electrode

4. Laboratory monitoring methods :
ion selective electrode (GB7484-87, water)
membrane fluoride ion selective electrode (GB/T15434-95, air) k

5. Environmental standards :
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 1mg/m3 [F]
China (TJ36-79) Residential District of harmful substances in the atmosphere the maximum allowable concentration (fluoride) 0.02mg/m3 (a value)
0.007mg/m3 (days average)
China (GB5048-92), irrigation water quality standards (fluoride) 2.0 ~ 3.0mg / L (water and dry vegetables)
Chinese (GB11607-89) Fisheries water quality standards 1 mg / L (fluoride)
China (GB5749-85) health standards for drinking water one. ABA / L (fluoride)
China (GB/T14848-93) groundwater quality standards (mg / L) Class I 1.0; Type II 1.0; Class III 1.0; category IV 2.0; category V 2.0 and above (fluoride)
China (GHZB1-1999), surface water quality standard (mg / L) of the following Class I 1.0; Type II 1.0; Class III 1.0; category IV 1 .5; category V 1.5 (fluoride)
China (GB8978-1996) sewage discharge standards (mg / L), a 10; two 10 ~ 20; three 20 ~ 30 (fluoride)

6. Emergency treatment and disposal methods :
a leakage contingency

rapid withdrawal of staff from air leakage supremacy wind, and immediately isolate small leakage isolation of 300 meters and a large leakage isolation of 450 meters and strictly restricted. Recommended emergency personnel wearing self-Pressurized respirators to wear protective clothing. As far as possible, cut off the source of leakage. A reasonable ventilation, accelerated proliferation. Leak containers should be properly handled, repair, testing later use.

two protective measures

respiratory protection : its possible exposure to vapor, must wear self-absorption filter respirators (full cover). When necessary, air respirators to wear.
eye protection : Respiratory Protection has been protective.
physical protection : wear protective clothing 52,400.
hand protection : Wear rubber gloves.
other : no smoking scene work. Pay attention to personal hygiene.

three, and emergency measures

contact with the skin : stripped of contaminated clothing, with a large number of mobile water rinse. Medical treatment.
eye contact : Did eyelid, mobile or saline irrigation water. Medical 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 : fire officers must wear body fire protective clothing. Cut off the gas source. Cooling water containers, if possible to move containers from the scene empty Department. Extinguishant : dry powder, carbon dioxide.