GB No. 42005
CAS No. 7440-67-7
Molecular Formula Zr
molecular 91.22

a light gray or shiny metal gray amorphous powder. Burning fat white Generation zirconia; The boiling point 4377 ° C; Melting point 1852 ° C; Solubility : not soluble in water, soluble in hot concentrated acid, hydrofluoric acid, aqua regia and concentrated sulfuric acid; Density : relative density (water = 1) 6.49; Stability : stability; Nine risk marker (Spontaneous goods); the main purposes : for the nuclear industry and corrosion resistant alloys, flash, fireworks and other manufacturers, but also for metallurgical Deoxidizer, chemical reagents

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested.
health hazards : Industrial not yet see a zirconium poisoning reported.

two, toxicology information and environmental behavior

hazardous characteristics : fine powder burns easily, and sometimes can be spontaneous explosion. Zirconium can be powder of carbon dioxide and nitrogen in the combustion. Heating powder in the event of fire or contact oxidizer will cause a fire explosion.
combustion (decomposition) product : zirconia.

3. Emergency Monitoring Methods :

4. Laboratory monitoring methods :
plasma spectrometry; AAS

5. Environmental standards :
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 5mg/m3

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. A small leak : the use of non-spark tools in a dry, clean, covered containers. Transfer recovery. Large Leak : plastic sheeting, canvas cover and reduce dispersion. The use of non-spark tools to transfer recovery.

two protective measures

Respiratory Protection : Air dust concentrations exceeding the recommended wearing self-absorption filter respirators.
眼睛防护：空气中粉尘浓度超标时，戴化学安全防护眼镜�?
physical protection : general operating wear protective clothing.
hand protection : Wear gloves against chemicals.

three, and emergency measures

contact with the skin : stripped of contaminated clothing, use soap and water thoroughly washed skin.
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
: warm water to drink enough, the symptoms and to seek medical treatment.

fire fighting methods : fire-extinguishing agent : dry, sandy soil. No water, foam and carbon dioxide to fight the blaze.