毒理性
识别和使用:乙烯基甲醚是一种无色的压缩气体或无色液体。共聚物用于涂料和喷漆,作为改性剂用于烷基、聚苯乙烯和离子树脂,以及作为硝化纤维素和粘合剂的增塑剂。人体研究:无数据可用。动物研究:乙烯基甲醚不会在兔子的皮肤或眼睛上产生炎症变化。大鼠可以耐受重复吸入2000 ppm。在大鼠的两个28天吸入研究中,在25000 ppm时观察到不安、体重增加减少和肝脏相对重量增加。在雄性大鼠中,在高浓度下观察到凝血酶原时间增加和总蛋白减少。在28天吸入研究中,1500 ppm是雄性大鼠的无效果水平,3500 ppm是雌性大鼠的无效果水平。甲基乙烯醚在鼠伤寒沙门氏菌TA98、TA100、TA1535和TA1537以及大肠杆菌WP2 uvrA(无论有无代谢激活)上不是致突变剂。在小鼠的微核试验中,乙烯基甲醚在5次25000 ppm暴露后没有产生裂变效应。
IDENTIFICATION AND USE: Vinyl methyl ether is a colorless compressed gas or colorless liquid. Copolymers are used in coatings and lacquers, as a modifier for alkyl, polystyrene and ionomer resins, and as a plasticizer for nitrocellulose and adhesives. HUMAN STUDIES: There are no data available. ANIMAL STUDIES: Vinyl methyl ether does not produce inflammatory changes in either the skin or eyes of rabbits. Rats tolerate repeated inhalation of 2000 ppm. In two 28-day inhalation studies in rats restlessness, reduction in body weight gain and an increase in relative weight of the liver were observed at 25,000 ppm. In the male rats, an increase in prothrombin time and a reduction in total protein occured at higher concentrations. In the 28-day inhalation study, 1500 ppm was the no effect level for male rats and 3500 ppm for female rats. Methyl vinyl ether was not mutagenic on Salmonella typhimurium TA98, TA100, TA1535 and TA1537, and Escherichia` coli WP2 uvrA with or without metabolic activation. In the micronucleus test in mice, vinyl methyl ether did not produce a clastogenic effect following 5 exposures of 25,000 ppm.
来源:Hazardous Substances Data Bank (HSDB)