GB
CAS No. 41538, 86-74-8
Molecular Formula C₁₂H₉N
molecular weight 167 .20

colorless monoclinic crystal Flake, a special odor; vapor pressure 53.33kPa/323 ° C flash point : 108 ° C; boiling point temperature 244.8 354.8 solubility : Micro-insoluble in water, soluble in alcohol, ether the majority of organic solvents; density : relative density (water = 1) 1.10; Stability : stability; risk Marker 8 (flammable solids); the main purposes : for dye, chemical reagents, explosives, pesticides, lubricants, rubber antioxidant such as the manufacture

2. The impact on the environment :
a health hazard

pathways : inhaled, ingested, percutaneous absorption.
health hazards : may cause eye and skin irritation. If inhalation, ingestion or absorption through the skin, can be deadly. Acute poisoning performance : dizziness, weakness and weak, blurring of vision, difficulty in breathing, fainting, lower blood pressure, such as bradycardia. Chronic role : Animal experiments showed that nitrogen sodium Diez produce hypotension, allowing nerve fibers in the central nervous from the sheath, testicular injury, blindness, cerebral cortex damaged.

two, toxicology information and environmental behavior

toxicity : it is a high drug category.
acute toxicity : LD₅₀27mg/kg (rat oral); 20mg/kg (rabbit percutaneous)
hazardous characteristics : high fever case, the fire or contact with oxidants, cause a fire danger. Thermal decomposition of the toxic release of nitric oxide gas.
combustion (decomposition) products : carbon monoxide, carbon dioxide, nitric oxide.

3. Emergency Monitoring Methods :

4. Laboratory monitoring methods : gas chromatography
reference to the "Handbook of Analytical Chemistry" (fourth volumes, chromatography analysis), the chemical industrial Press
chromatography-mass spectrometry "environmental monitoring data, 1986 (1-2)," the China Environmental Monitoring Station

5. Environmental standards :
American plant health standards 0.3mg/m3 [upper]
the former Soviet Union (1975) Harmful Substances in Water maximum allowable concentration 0.2mg/L

6. Emergency treatment and disposal methods :
a leakage contingency

isolation leakage polluted area, located around the warning signs, the proposed emergency personnel to wear positive pressure self-contained breathing apparatus to wear chemical protective clothing. To have direct contact with the spill to avoid dust, collected in dry Clean covered containers, transferred to a safe place. We could also use a lot of water washing, Add Water dilution of the wastewater system. If large spills, recycling or collection of sound waste treatment.

two protective measures

respiratory protection : concentration in air overweight, they should wear protective masks. Emergency rescue or escape, wear self-contained breathing apparatus.
eye protection : Wear protective safety glasses.
protective clothing : wearing overalls.
hand protection : Wear protective gloves.
other : work site prohibit smoking, eating and drinking. After work, take a shower. Separate storage of toxic pollution by the clothes, washed reuse. To maintain good health habits.

three, and emergency measures

contact with the skin : contaminated clothing off immediately mobile water thoroughly washed.
eye contact : immediately filed eyelid, with a large number of mobile water thoroughly washed.
Inhalation : rapidly from the scene to fresh air. Chang will keep the airway. Difficult to breathe oxygen. Stop breathing, artificial resuscitation immediately. Medical treatment. Fresh into
: coverage to those who drink large warm water, the symptoms and to seek medical treatment.

fire fighting methods : water mist, foam, carbon dioxide, dry, sandy soil.