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苯的特性 无色透明、有强烈芳香的易燃液体。其蒸汽能与空气形成爆炸性混合物,爆炸极限为1.2％～8％,遇明火、高热能引起燃烧爆炸,与氧化剂发生强烈反应。遇明火会引起回燃。不溶于水,比空气重比重约为空气的2.7倍,蒸气往往漂浮于地表及下水道、沟渠、厂房死角等处,有潜在的爆炸危险。苯属中等毒类。高浓度苯对中枢神经系统有麻醉作用,轻者有头疼、头晕、轻度兴奋、步态蹒跚等酒醉状态,重者出现明显头痛、恶心、哎吐、神志模糊、知觉丧失、昏迷、抽搐等症状,可因呼吸中枢麻痹而死亡。
The characteristics of benzene colorless, transparent, strong aromatic flammable liquid. The steam can form an explosive mixture with the air, the explosion limit of 1.2% to 8%, in case of open flame, high fever can cause a combustion explosion, and oxidants react violently. In case of fire will cause back to burning. Insoluble in water, heavier than the air is about 2.7 times the air, the steam tends to float on the surface and sewers, ditches, factories and other dead ends, there is a potential explosion hazard. Benzene is a moderate poison. High concentration of benzene on the central nervous system anesthesia, the light of a headache, dizziness, mild excitement, staggering gait and other drunken state, severe headache, nausea, vomiting, vague consciousness, loss of consciousness, coma, convulsions Other symptoms may be due to respiratory center paralysis and death.