毒理性
识别和使用:2H,3H-十氟戊烷是一种无色透明的液体。它是一种新型的氟碳替代品,没有已知的消耗臭氧潜力,设计用于清洁电路板。人体暴露和毒性:没有可用的数据。动物研究:通过让雄性和雌性大鼠每天吸入0、500、2000或3500 ppm,每天6小时,每周5天,持续13周(或妊娠期的第7-16天),评估了亚慢性毒性、神经毒性和致畸性。评估的参数包括体重、食物消耗、功能观察电池、运动活动、临床病理学、标准病理学和神经病理学。此外,为了更好地定义抽搐效应的无观察到不良效应水平(NOEL),在1000、1500、2500和3000 ppm进行了额外的短期暴露。在3500 ppm暴露期间发生了抽搐,在2000 ppm时抽搐程度较小。在1000 ppm或以下没有发生抽搐。在3500 ppm时,运动活动减少。在3500 ppm时,血清白蛋白和尿液分析参数出现了影响。没有发现与体重、食物消耗、血液学参数、病理学参数或神经病理学终点相关的化合物效应。暴露于2000或3500 ppm的怀孕雌性出现了毒性临床迹象和较低的体重。在3500 ppm时,胎儿体重降低。
IDENTIFICATION AND USE: 2H,3H-decafluoropentane is a clear, colorless liquid. It is a new fluorocarbon alternative with no known ozone-depleting potential, designed for use in cleaning circuit boards. HUMAN EXPOSURE AND TOXICITY: There are no data available. ANIMAL STUDIES: The subchronic toxicity, neurotoxicity, and teratogenicity were evaluated by exposing male and female rats to 0, 500, 2,000 or 3,500 ppm /by inhalation/ for 6 hr/d, 5d/wk for 13 weeks (or gestation days 7-16). Parameters evaluated included body weight, food consumption, functional observational battery, motor activity, clinical pathology, standard pathology, and neuropathology. Additional short-term exposures were conducted at 1,000, 1,500, 2,500, and 3,000 ppm to better define NOEL for convulsive effects. Convulsions occurred during exposure at 3,500 ppm and to a minimal extent at 2,000 ppm. Convulsions did not occur at 1,000 ppm or below. Motor activity was reduced at 3,500 ppm. Effects on serum albumin and urinalysis parameters occurred at 3,500 ppm. No compound-related effects on body weight, food consumption, hematology parameters, pathology parameters, or neuropathology endpoints were detected. Pregnant females exposed to 2,000 or 3,500 ppm had clinical signs of toxicity and lower body weight. Fetal body weight was lower at 3,500 ppm.
来源:Hazardous Substances Data Bank (HSDB)