正己烷 (ｎ Ｈｅｘａｎｅ)为饱和脂肪烃类 ,作为溶剂在工业中的使用日益广泛。其急性毒性分类虽属低毒类 ,但因其具高挥发性和高脂溶性 ,且有蓄积作用和对神经系统的毒性 ,应考虑为高危害性毒物[1] 。国外正己烷职业中毒引起的周围神经病已屡见报道 ,1991年ＷＨＯ专家小组讨论 N Hexane is a saturated aliphatic hydrocarbon that has been used as a solvent in industry for a growing number of uses. Although its acute toxicity classification is of low toxicity, it should be considered as a high-risk toxicant because of its high volatility and fat-solubility and its accumulation and toxicity to the nervous system [1]. Peripheral neuropathy caused by foreign n-hexane occupational poisoning has been frequently reported, 1991 WHO panel discussion