GB No. 43003
CAS No. 7440-09-7
Molecular Formula K
molecular 39.10

soft silver-white metal; A vapor pressure. 33kPa (443 ° C); the temperature 63.6 ° C; the boiling point of 774 ° C; solubility : insoluble hydrocarbons, ammonia dissolved; density : relative density (water = 1) 0.86; Stability : unstable; risk Marker 10 (flammable substances wetlands case ); the main purposes : for the system over Potassium alloy heat exchanger, also used as reagents

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested.
health hazards : the mouth eye, nose, throat and lungs with the stimulus, contacts after the sneeze, cough and laryngitis. Inhalation of high concentrations can be induced pulmonary edema. Eye and skin to stimulate a strong corrosive and can cause burns.

two, toxicology information and environmental behavior

acute toxicity : LD₅₀700mg/kg (internal organs of mice cavity)
hazardous characteristics : high chemical reactivity, moist air can be spontaneous. With water or tidal fierce reaction produce hydrogen, heat large, cause a fire or explosion. Exposure to the air or oxygen combustion and self explosion molten spatter. With water, carbon dioxide can fierce response. With halogens, phosphorus, many oxides, oxidizers and acid reacted sharply. Purple issued combustion flame.
combustion (decomposition) product : Potassium.

3. Emergency Monitoring Methods :

4. Laboratory monitoring methods :
flame atomic absorption spectrometry (GB11904-89, water)
AAS ( GB13580.12-92, atmospheric precipitation)
AAS "Solid Waste Analysis Evaluation Manual," the China Environmental Monitoring terminus translated

5. Environmental standards :
the European Community (1975) drinking water standard to guide standards 10mg/L
maximum allowable concentration mg / L
the former Soviet Union (1975) emission standards for sewage 100 to 200 mg / L
China (GB8172-87) farm towns garbage control standards 1.0mg. kg-1

6. Emergency treatment and disposal methods :
a leakage contingency

isolation leak contaminated areas, restricting access. Cut off the fire source. Recommended emergency personnel wearing self-contained breathing apparatus, wearing fire protective clothing. Do not direct contact with leakage. A small leak : to avoid dust, collected in a dry, clean, covered containers. Revenue metal containers and stored in kerosene or liquid paraffin. Large Leak : plastic sheeting, canvas cover and reduce dispersion. The clearance under the guidance of experts.

two protective measures

respiratory protection : Most do not need special protection, but suggested that under special circumstances, since wearing gas masks suction filtered (half-mask).
eye protection : wearing protective masks.
physical protection : wear chemical protective clothing.
hand protection : Wear rubber gloves.
other : no smoking scene work. Pay attention to personal hygiene.

three, and emergency measures

contact with the skin : immediately stripped of contaminated clothing, with a large number of mobile wash, at least 15 minutes. Medical treatment.
eye contact : immediately filed eyelid, with a large number of mobile water or saline thoroughly washed at least 15 minutes. 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. Fresh into
: oral intake of water were found to blues or egg white. Medical treatment.

fire fighting methods : not water, halohydrocarbons (1211 extinguishing agents), sodium bicarbonate, potassium bicarbonate as a fire extinguishing agent. That is, the use of potassium graphite powder is not applicable. But the use of dry powder of sodium chloride, sodium carbonate powder, calcium carbonate powder, dry sand, etc. fire.