【摘 要】
：
在二氟一氯甲烷(F_(22))裂解法制取四氟乙烯单体的生产过程中,存在多种氟代烷、氟代烯烃等气体。在生产四氟乙烯的车间空气中,据现有的测试技术,已测知存在二氟一氯甲烷、四
论文部分内容阅读
在二氟一氯甲烷(F_(22))裂解法制取四氟乙烯单体的生产过程中,存在多种氟代烷、氟代烯烃等气体。在生产四氟乙烯的车间空气中,据现有的测试技术,已测知存在二氟一氯甲烷、四氟乙烯(F_4)、六氟丙烯(F_6)和氟化氢四种有害气体。为了阐明多种有机氟气体共同存在情况下对机体的影响,我们对已能取得纯气的F_(22)、F_4、F_6进行急性联合毒性试验,以便为评价车间空气中共存气体的联合作用提供依据.
In the production of tetrafluoroethylene monomer by difluorochloromethane (F_ (22)) pyrolysis, there are many kinds of gases such as fluoroalkane and fluoroolefin. According to the existing testing technology, difluorochloromethane, tetrafluoroethylene (F_4), hexafluoropropylene (F_6) and hydrogen fluoride have been detected in the air of workshop producing tetrafluoroethylene. In order to elucidate the effects of various organofluorine gases on the organism, we conducted an acute combined toxicity test on F_ (22), F_4, and F_6 that have been able to obtain pure gas to provide a combined assessment for the co-existence of gas in the plant air in accordance with.
其他文献
Migraines are primary headaches,and their pathogenesis is complex,involving cerebral vascular dilatation or spasm,cerebral hemodynamic abnormalities,and mul
Adult mammalian cortex has long been regarded as "non-neurogenic".Recent studies have reported neurogenesis in the adult cortex after cerebral ischemia,but
Although bumetanide,which is believed to improve the symptoms of autism,is widely used clinically,the research on its mechanism remains limited.Studies have
一、适合作物的需求及特性1．了解作物的品种特性，配合作物生长期或株龄，进行合理有效地施肥。一般多年生果树，树势大小决定施肥量，树势弱的植株不宜施用过量化学肥料，否则不仅肥效
在读本文之前,你不妨先看一眼文中的照片,你会发现,照片上的女士在笑、在哭、在唱,她们在某种力量的驱使下变得心情激荡。这种力量就是玛丽·凯·阿什夫人的热诚,而这些女士
子宫内膜癌(EC)是女性生殖系统高发的三大恶性肿瘤之一,近年来其发病呈现出明显的“年轻化”趋势,保留生育功能成为这部分患者的重要就诊诉求之一.目前,全球已有十余个医学组
梨树在我省汉中、安康各县均有栽培，但目前除洋县面积稍大、效果较好外，其它各县仅为零星栽植，优良品种较少，产量低，品质差，远远不能满足市场的需求。如果能使该区梨树生产走上规模
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
省优秀教师、特级教师、共产党员黄陶之,扎根农村从事教育工作已经三十八年了。三十八年风雨伴钟声,在教育战线上跋涉、登攀、驰骋,充满了磨难与痛苦,成功与欢乐。黄陶之为农