毒理性
识别和使用:醋酸锆用于制备防水剂和其他化学品。人类接触和毒性:眼睛或皮肤接触可能导致刺激。在体外重建的人表皮模型中,将含有40.7%无水醋酸锆的溶液20微升应用于组织。暴露时间为15分钟,观察期为42小时。与阴性对照组相比,平均细胞存活率(109%)表明测试物质不具有刺激性。动物研究:在大鼠24小时内皮肤暴露于2000 mg/kg的醋酸锆水平下,醋酸锆没有系统性毒性。没有死亡的情况表明LD50大于2000 mg/kg。醋酸锆溶液在小鼠皮肤暴露后不会引起任何过敏反应。对于系统性毒性、生殖毒性和发育毒性的无观察到有害作用水平(NOAEL)被认为是雄性和雌性大鼠的>/= 1000 mg/kg bw/day。根据牛角膜研究的结果,醋酸锆应该被归类为对眼睛有腐蚀性或严重刺激性。细菌反向突变试验(例如Ames试验)得出结论,测试物质醋酸锆在缺乏或存在S9代谢的情况下,不会诱导沙门氏菌或大肠杆菌的反向突变。在哺乳动物细胞基因突变试验中,醋酸锆溶液在缺乏或存在S9代谢激活的情况下,不会诱导L5178Y小鼠淋巴瘤细胞的TK位点的突变。醋酸锆溶液在体外处理后不会诱导仓鼠卵巢细胞的结构性染色体畸变。
IDENTIFICATION AND USE: Zirconium acetate is used for preparation of water repellents, and other chemicals. HUMAN EXPOSURE AND TOXICITY: Contact with eyes or skin may cause irritation. In an in vitro reconstructed human epidermis model 20 uL of a solution containing 40.7% of anhydrous zirconium acetate was applied to tissues. The exposure time was 15 minutes, and the observation period was 42 hr. Based on the mean cell viability (109%) when compared to the negative control, the test item was considered not irritant. ANIMAL STUDIES: Zirconium acetate has no systemic toxic effect on the rat following dermal exposure over a 24 hour period at a level of 2000 mg/kg. The lack of mortality demonstrates the LD50 to be greater than 2000 mg/kg. Zirconium acetate solution does not elicit any sensitization response in mice following dermal exposure. The No Observed Adverse Effect Level (NOAEL) for systemic toxicity, reproductive toxicity and for developmental toxicity was considered to be >/= 1000 mg/kg bw/day for males and females rats. According to results in a bovine corneal study, zirconium acetate should be classified as corrosive or severely irritant to the eye. A bacterial reverse mutation assay (e.g. Ames test) concluded that the test item zirconium acetate does not induce reverse mutation in Salmonella typhimurium or Escherichia coli in the absence or presence of S9 metabolism. In a mammalian cell gene mutation assay zirconium acetate solution did not induce mutation at the TK locus of L5178Y mouse lymphoma cells in vitro in the absence or presence of S9 metabolic activation. Zirconium acetate solution did not induce structural chromosomal aberrations in hamster ovary cells after in vitro treatment.
来源:Hazardous Substances Data Bank (HSDB)