GB No. 61513
CAS No. 7783-49-5
Molecular Formula ZnF2
molecular weight of 103.39

white crystalline powder; Vapor pressure of 0 .13 kPa (970 ° C); the temperature of 872 ° C; the boiling point 1497 ° C; solubility : Micro soluble in cold water, soluble in hot water, hot acid, do not dissolve in alcohol; density : relative density (water = 1) 4.84; Stability : stability; risk Marker 15 ( hazardous materials); the main purposes : reagents for the analysis of

2. The impact on the environment
the substance of environmental hazards may be.

a health hazard

pathways : inhaled, ingested.
health hazards : This pair of eyes and skin stimulation. Inhalation and oral or absorbed through the skin after potentially lethal. Poisoning performance excessive secretion of saliva, nausea, vomiting, abdominal pain, fever. Calcium can cause low illnesses such as skeletal fluorosis.

two, toxicology information and environmental behavior

hazardous characteristics : no special combustion characteristics of the explosion.
combustion (decomposition) products : hydrogen fluoride.

3. Scene emergency monitoring methods
speed measurement tube; Ion selective electrode

4. Laboratory monitoring methods
ion selective electrode (GB7484-87, the water, fluoride)
membrane fluoride ion selective electrode (GB/T15434-95 air, and fluoride) < / P>

5. Environmental standards
China (TJ36-79) Workshop harmful substances in the air that the maximum allowable concentration 1mg/m3 [F]
China (TJ36-79) settlements atmosphere of the most hazardous substances high permissible concentration (fluoride) 0.02mg/m3 (a value)
0.007mg/m3 (days average)
Chinese (GB16297-1996) Air Pollutant Discharge Standards (fluoride), the maximum allowed â‘?emissions concentration (mg/m3) :
9 ~ 90 (Table 2); 11 to 100 (Table 1)
â‘?maximum allowable emission rate (kg / h) : 0.10
2 ~ 4.2 (Table 2); 0.12 ~ 4.9 (Table 1)
3 ~ .3 0.15 (Table 2); 0.18 ~ 7.5 (Table 1) 0.02 (Table 2); 0.02 (Table 1)
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) of water life the standard 1.0 mg / 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)
following Class I 1.0; Class 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)

China (GB5058.3-1996), solid waste leaching toxic identification standard value of 50 mg / L (fluoride) < / P>

6. Emergency treatment and disposal methods
a leakage contingency

isolation leakage polluted area, located around the warning signs, the proposed emergency personnel wearing gas masks, chemical protective clothing to wear. Do not direct contact with leakage. Avoid dust with clean shovel collection in a dry, clean, covered containers, transported to the waste disposal sites. If substantial leakage collection shipped to recycling or waste disposal sites.

two protective measures

respiratory protection : concentration in air overweight, they should wear protective masks. Emergency rescue or escape, it is recommended to wear self-contained breathing apparatus.
eye protection : Wear protective chemical safety glasses.
protective clothes : wear appropriate protective clothing.
hand protection : Wear gloves against chemicals.
other : work site prohibit smoking, eating and drinking. After work, take a bath. Do not dress to a non-operational establishments, separate storage of contaminated clothes and reuse of post. To maintain good health habits.

three, and emergency measures

contact with the skin : stripped of contaminated clothing, immediately wash with water for at least 15 minutes.
eye contact : immediately filed eyelid, mobile water rinse for 10 minutes or 2% sodium bicarbonate solution rinse.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. Difficult to breathe oxygen. Respiratory stop immediately mouth. Medical treatment. Fresh into
: immediate coverage of gastric lavage. Medical treatment.

fire fighting methods : Unburning. Available around the fire extinguishing media.