GB No. 61513
CAS No. 7784-18-1
Molecular Formula AlF₃
molecular 83.98

colorless or white crystals; vapor pressure 0.13kPa (1238 ° C); melting point 1040 ° C; the boiling point 1537 ° C; solubility : do not dissolve in water, acid, alkali; density : relative density (water = 1) 1.91; Stability : stability; risk Marker 15 (hazardous materials); the main purposes : when used in the electrolytic aluminum electrolytic agent regulator, catalyst

2. The impact on the environment
the material to the environment may endanger the water bodies should be given special attention.

a health hazard

pathways : inhaled, ingested.
health hazards : a decomposition product of hydrogen fluoride irritation can have eyes and respiratory tract irritation symptoms can occur severe bronchitis, pneumonia, even reflective of suffocation.

two, toxicology information and environmental behavior

acute toxicity : LD₅₀52mg/kg (rat oral); 57mg/kg (mice) are
irritation : Percutaneous rabbits : 500mg (24 hours), the severe stimulation .
subacute and chronic toxicity : containing fluoride in rats 7-9ppm feed continuous feeding can cause tooth calcification obstacles, the dose was increased to skeletal changes.
Mutagenicity : microbial mutagenicity : Salmonella typhimurium 1 mg / plate. Cytogenetic analysis : human fibroblasts 20 mg / L, respectively.
death toxicity : rat poisoning by mouth lowest dose (TDL0) : 240mg/kg (progesterone 11-14 days), musculoskeletal abnormalities.
cancer : IARC carcinogens comments : people is not clear.

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

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 prospective value of 50 mg / L (fluoride)

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 : Workers should wear dust masks. If necessary, wear gas masks.
eye protection : Wear protective chemical safety glasses.
protective clothes : wear appropriate protective clothing.
hand protection : Wear protective gloves.
other : work site prohibit smoking, eating and drinking. After work, take a bath. Separate storage of contaminated clothing, 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.