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暂无资料\u003C\u002Fp>\n\u003Cp>3.非生物降解性空气中，当羟基自由基浓度为5.00×10\u003Csup>5\u003C\u002Fsup>个\u002Fcm\u003Csup>3\u003C\u002Fsup>时，降解半衰期为1.1d（理论）。\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>\u003Ca href=\"\u002Fen\u002Fcas\u002F646-06-0_1194375.html#duXinDiv\">1,3-二氧戊环毒性英文版\u003C\u002Fa>\u003C\u002Fp>\n\n\u003C\u002Ftd>","\u003Cp>由多聚甲醛与乙二醇反应而得。多聚甲醛与乙二醇以1：1.25摩尔比投入反应釜中，用强酸性离子交换树脂作催化剂，在90-110℃进行常压反应。从蒸馏柱顶部馏出70-74℃共沸物，经氯化钠盐析及无水氯化钙脱水后，再进行蒸馏提纯，切取71-74℃馏分，用分子筛将水分脱至200ppm，即得成品。\u003Cbr \u002F>另一种操作是使多聚甲醛与乙二醇在浓硫酸存在下反应，经氯化钠盐析；固碱干燥，精馏得到产品。\u003Cbr \u002F>原料消耗定额：多聚甲醛（93-95%）750kg\u002Ft；乙二醇200kg\u002Ft。\u003C\u002Fp>","\u003Ctd>\n\n\u003Ctable>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 国标编号: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 32096 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> ＣＡＳ: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 646-06-0 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 中文名称: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 二氧戊环 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 英文名称: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 1,3-dioxolane \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 别 名: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 1，3-二氧戊环；乙二醇缩甲醛 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 分子式: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> C\u003Csub>3\u003C\u002Fsub>H\u003Csub>6\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>；CH\u003Csub>2\u003C\u002Fsub>OCH\u003Csub>2\u003C\u002Fsub>OCH\u003Csub>2\u003C\u002Fsub> \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 分子量: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 74.08 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 熔 点: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> -95℃ 沸点：74℃ \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 密 度: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 相对密度(水=1)1.06； \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 蒸汽压: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 9.33kPa\u002F20℃ 闪点：2℃\u002F开杯 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 溶解性: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 溶于水 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 稳定性: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 稳定 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 外观与性状: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 水的白色液体 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 危险标记: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 7(易燃液体) \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 用 途: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 用作低沸点化合物的溶剂，及油脂、蜡、染料及纤维衍生物的萃取剂 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Cbr \u002F> 2.对环境的影响: \n\u003Cbr \u002F> 一、健康危害 \n\u003Cbr \u002F> 侵入途径：吸入、食入、经皮吸收。\n\u003Cbr \u002F>健康危害：本品为麻醉剂，蒸气有刺激作用。 \n\u003Cbr \u002F> 二、毒理学资料及环境行为 \n\u003Cbr \u002F>急性毒性：LD\n\u003Csub>50\u003C\u002Fsub>3000mg\u002Fkg(大鼠经口)；8480mg\u002Fkg(兔经皮)；LC\n\u003Csub>50\u003C\u002Fsub>20650mg\u002Fm\n\u003Csup>3\u003C\u002Fsup>，4小时(大鼠吸入)\n\u003Cbr \u002F>危险特性：易燃，其蒸气与空气可形成爆炸性混合物，遇明火、高热能引起燃烧爆炸。与氧化剂能发生强烈反应。接触空气或在光照条件下可生成具有潜在爆炸危险性的过氧化物。其蒸气比空气重，能在较低处扩散到相当远的地方，遇明火会引着回燃。\n\u003Cbr \u002F>燃烧(分解)产物：一氧化碳、二氧化碳。 3.现场应急监测方法: \n\n\u003Cbr \u002F> 　 \n\u003Cbr \u002F> 4.实验室监测方法: \n\u003Cbr \u002F>香味化合物立体异构体:X X VI、手性1，3-二氧戊环的高分辨气相色谱分析[刊，英]\u002FMosandl A.；Hagenauer-Hener U.\u002F\u002FHRC CC,J.High Resolut.Chromatogr.Chromatogr.Commun.-1988,11(10).-744～749 《分析化学文摘 》1990.4. 5.环境标准: \n\n\u003Cbr \u002F> 　 \n\u003Cbr \u002F> 6.应急处理处置方法: \n\u003Cbr \u002F> 一、泄漏应急处理 \n\u003Cbr \u002F> 迅速撤离泄漏污染区人员至安全区，并进行隔离，严格限制出入。切断火源。建议应急处理人员戴自给正压式呼吸器，穿消防防护服。尽可能切断泄漏源，防止进入下水道、排洪沟等限制性空间。小量泄漏：用砂土、干燥石灰或苏打灰混合。也可以用大量水冲洗，洗水稀释后放入废水系统。大量泄漏：构筑围堤或挖坑收容；用泡沫覆盖，降低蒸气灾害。用防爆泵转移至槽车或专用收集器内，回收或运至废物处理场所处置。 \n\u003Cbr \u002F> 二、防护措施 \n\u003Cbr \u002F> 呼吸系统防护：可能接触其蒸气时，佩戴自吸过滤式防毒面具(半面罩)。\n\u003Cbr \u002F>眼睛防护：戴化学安全防护眼镜。\n\u003Cbr \u002F>身体防护：穿防静电工作服。\n\u003Cbr \u002F>手防护：戴橡胶手套。\n\u003Cbr \u002F>其它：工作现场严禁吸烟。工作毕，淋浴更衣。注意个人卫生。 \n\u003Cbr \u002F> 三、急救措施 \n\u003Cbr \u002F> 皮肤接触：脱去被污染的衣着，用肥皂水和清水彻底冲洗皮肤。\n\u003Cbr \u002F>眼睛接触：提起眼睑，用流动清水或生理盐水冲洗。就医。\n\u003Cbr \u002F>吸入：迅速脱离现场至空气新鲜处。保持呼吸道通畅。如呼吸困难，给输氧。如呼吸停止，立即进行人工呼吸。就医。\n\u003Cbr \u002F>食入：饮足量温水，催吐，就医。 \n\u003Cbr \u002F> 灭火方法：尽可能将容器从火场移至空旷处。喷水保持火场容器冷却，直至灭火结束。处在火场中的容器若已变色或从安全泄压装置中产生声音，必须马上撤离。灭火剂：抗溶性泡沫、干粉、二氧化碳、砂土。用水灭火无效。 \n\u003Ch3>\u003C\u002Fh3>\n\u003Ch3>\u003C\u002Fh3>\n\u003Ch3>\u003C\u002Fh3>\n\u003Ch3>\u003C\u002Fh3>\n\u003Ch3>\u003C\u002Fh3>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr 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