GB No. 61638
CAS No. 100-47-0
Molecular Formula C₇H₅N; C₆H₅CN
molecular weight of 103.12

colorless oily liquid, almond odor; Vapor Pressure : 0.13kPa/28.2 ° C; flash point : 71 ° C; melting point : leather ° C boiling point of 190.7 ° C; solubility-soluble in cold water, soluble in water, soluble in alcohol, ether; density : relative density (water = 1) 1.01; Stability : stability; hazard markers : 14 (drugs); the main purposes : intermediates for synthetic rubber

2. The impact on the environment
the material harm to the environment, with special attention to water pollution.

a health hazard

pathways : inhaled, ingested, percutaneous absorption.
health hazards : clothes as a result of contamination of the goods serious poisoning reported. People with the loss, convulsions. The goods have ocular irritation. Skin contact with a longer time stimulating effect. Animal inhalation steam or small dose gavage, mainly anesthetic effects. Large doses cause cramps.

two, toxicology information and environmental behavior

toxicity : is moderately toxic.
acute toxicity : LD₅₀1200mg/kg (rats Paper); 971mg/kg (percutaneous rabbit); LC₅₀6000mg/m3 (mouse inhalation)

hazardous characteristics : encountered fire will burn. Heat released by the decomposition of toxic gases. Contact with strong oxidants or a chemical reaction.
combustion (decomposition) products : carbon monoxide, carbon dioxide, nitric oxide.

3. Scene emergency monitoring methods
gas detector tube (cyanide)

4. Laboratory monitoring methods
wastewater Trace benzonitrile, methyl Benzonitrile and isophthalonitrile analysis [to be] / FAN Yan Ying; LIU Ji / / Chemical environmental .- 1985,5 (3) .- 179 ~ 184 "Analysis of Chemical Abstracts" 1986.8

5. Environmental standards

6. Emergency treatment and disposal methods
a leakage contingency

rapid withdrawal from air leakage personnel to a safe area, and isolation and strict restrictions on access. Cut off the fire source. Recommended emergency personnel wearing self-Pressurized respirators to wear protective clothing. Do not direct contact with leakage. As far as possible, cut off the source of leakage, prevent access to sewers, flood discharge trench so restrictive space. A small leak : sand or other materials Unburning adsorption or absorption. We could also use non-flammable dispersant made of latex, wash, lotion diluted Add to the wastewater system. Large leak : to build a causeway or trenching asylum. Foam coverage, lower vapor disasters. With the transfer pump to tankers or exclusive collector, recycling or shipped to the disposal of waste disposal sites.

two protective measures

respiratory protection : its vapor may come into contact with, they should wear self-absorption filter respirators (full cover). Emergency rescue or evacuation, it is recommended to wear air respirators.
eye protection : Wear protective chemical safety glasses.
physical protection : Polyethylene wear protective clothing.
hand protection : Wear rubber gloves.
other : work site prohibit smoking, eating and drinking. Work to complete, thorough cleansing. Separate storage of toxic pollution by the clothes, washed standby. Workshops should be equipped with first aid equipment and medicines. Workers should learn how to help themselves and mutual aid.

three, and emergency measures

contact with the skin : immediately stripped of contaminated clothing, mobile water or 5% sodium thiosulfate solution thoroughly washed at least 20 minutes. Medical treatment.
eye contact : Did eyelid, mobile or saline irrigation water. Medical treatment.
Inhalation : rapidly from the scene to fresh air. To keep the airway patency. If breathing is difficult, give oxygen. Respiratory heartbeat stop immediately mouth (not to use oral counterparts) and thoracic cardiac massage for. To inhalation isoamyl nitrite. Medical treatment. Fresh into
: warm water to drink enough, the symptoms, using 1:5000 potassium permanganate or 5% sodium thiosulfate solution gastric lavage. Medical treatment.

fire fighting methods : fire-extinguishing agent : Anti-insoluble foam, powder, CO2, sand. Prohibit the use of acid-base fire-extinguishing agent.