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其他结构上有非稠合呋喃环化合物. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:20.0%",{"key":334,"value":335},"申报要素","品名, 成分含量, 用途",{"key":337,"value":338},"Summary","2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%",[340,343,345,348,351,354,357,360,363,366,369,372,375,378,380],{"key":341,"value":342},"符号","GHS02, GHS07, GHS08",{"key":344,"value":258},"信号词",{"key":346,"value":347},"危害声明","H224-H302 + H332-H315-H341-H350-H373-H412",{"key":349,"value":350},"补充危害声明","May form explosive peroxides.",{"key":352,"value":353},"警示性声明","P201-P210-P273-P281-P308 + P313",{"key":355,"value":356},"个人防护装备","Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US)",{"key":358,"value":359},"危害码 (欧洲)","T:Toxic",{"key":361,"value":362},"风险声明 (欧洲)","R12;R19;R20\u002F22;R38;R45;R48\u002F22;R52\u002F53;R68",{"key":364,"value":365},"安全声明 (欧洲)","S53-S45-S61",{"key":367,"value":368},"危险品运输编码","UN 2811 6.1\u002FPG 2",{"key":370,"value":371},"WGK德国","3",{"key":373,"value":374},"RTECS号","OB3870000",{"key":376,"value":377},"包装等级","I",{"key":379,"value":371},"危险类别",{"key":328,"value":381},"2932999060","\u003Ctd>\n\n\u003Cp>\u003Cstrong>呋喃毒理学数据:\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\u003Cp>1.急性毒性 LC50：3398ppm（大鼠吸入，1h）；120mg\u002Fm\u003Csup>3\u003C\u002Fsup>（小鼠吸入，1h）\u003C\u002Fp>\n\u003Cp>2.刺激性 暂无资料\u003C\u002Fp>\n\u003Cp>3.致突变性 \u003C\u002Fp>\n\u003Cp>微生物致突变：鼠伤寒沙门菌825nmol\u002F皿。DNA修复：枯草杆菌3500μg\u002F皿。哺乳动物体细胞突变：小鼠淋巴细胞1139mg\u002FL。细胞遗传学分析：仓鼠卵巢184mmol\u002FL。\u003C\u002Fp>\n\u003Cp>4.致癌性 IARC致癌性评论：G2B，可疑人类致癌物。\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>\u003Cstrong>呋喃生态学数据:\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\u003Cp>1.生态毒性 LC50：61mg\u002FL（96h）（黑头呆鱼）；166mg\u002FL（48h）（青鳉）\u003C\u002Fp>\n\u003Cp>2.生物降解性\u003C\u002Fp>\n\u003Cp>好氧生物降解（h）：168~672\u003C\u002Fp>\n\u003Cp>厌氧生物降解（h）：672~2688\u003C\u002Fp>\n\u003Cp>3.非生物降解性\u003C\u002Fp>\n\u003Cp>水中光氧化半衰期（h）：13.8~1375\u003C\u002Fp>\n\u003Cp>空气中光氧化半衰期（h）：0.477~4.72\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>\u003Ca href=\"\u002Fen\u002Fcas\u002F110-00-9_670773.html#duXinDiv\">呋喃毒性英文版\u003C\u002Fa>\u003C\u002Fp>\n\n\u003C\u002Ftd>","\u003Cp>1.由糠醛氧化得到2-呋喃甲酸，经脱羧后，即得呋喃。将2-呋喃甲酸加热至200-205℃（沸点左右），即分解为呋喃和二氧化碳。反应过程中，将升华的2-呋喃甲酸返回反应器，馏出的呋喃重新蒸馏，收集31-34℃馏分即得较纯的成品。收率约75%。工业上可由糠醛直接脱羰。反应所用的催化剂有硅酸铝、金属氧化物或氢氧化物以及合金或金属的混合物，如亚铬酸锌和锰的混合物，反应温度约400℃，收率90%。在大规模生产时收率可达74%。\u003C\u002Fp>\u003Cp>精制方法：用5%氢氧化钾水溶液洗涤，无水硫酸钙或无水硫酸钠干燥，使用前在氢氧化钾或金属钠存在下蒸馏。若有过氧化物，可用硫酸氢钠和弱酸性硫酸亚铁水溶液洗涤除去。\u003C\u002Fp>","\u003Ctd>\n\n\u003Ctable>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 国标编号: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 31040 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> ＣＡＳ: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 110-00-9 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 中文名称: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 呋喃 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 英文名称: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> Furan；Divinylene oxide \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 别 名: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 氧杂茂 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 分子式: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> C\u003Csub>4\u003C\u002Fsub>H\u003Csub>4\u003C\u002Fsub>O；CHCHCHCHO \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 分子量: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 68.07 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 熔 点: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> -85.6℃ \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 密 度: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 相对密度(水=1)0.94； \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 蒸汽压: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> -35℃ \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 溶解性: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 不溶于水，溶于丙酮、苯，易溶于乙醇、乙醚等多数有机 \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> 无色液体，有温和的香味 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 危险标记: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 7(低闪点易燃液体) \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 用 途: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 用于有机合成或用作溶剂 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Cbr \u002F>\n\u003Cb> 2.对环境的影响: \u003C\u002Fb>\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：本品有麻醉和弱刺激作用。吸入后可引起头痛、头晕、血压下降、呼吸衰竭。\n\u003Cbr \u002F>慢性影响：肝、肾损害。 \n\u003Cbr \u002F> 二、毒理学资料及环境行为 \n\u003Cbr \u002F>急性毒性：LC\n\u003Csub>50\u003C\u002Fsub>120mg\u002Fm\n\u003Csup>3\u003C\u002Fsup>，1小时(小鼠吸入)\n\u003Cbr \u002F>危险特性：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。与氧化剂能性强烈反应。在空气中能形成不稳定的过氧化物，蒸馏时易引起爆炸。本品与酸液接触，能发生强烈的放热反应。在火场中，受热的容器有爆炸危险。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。 \n\n\u003Cb>3.现场应急监测方法: \u003C\u002Fb>\n\n\u003Cbr \u002F> 　 \n\n\n\u003Cb>4.实验室监测方法: \u003C\u002Fb>\n\u003Cbr \u002F> 比色法《化工企业空气中有害物质测定方法》，化学工业出版社 \n\n\u003Cb>5.环境标准: \u003C\u002Fb>\n\u003Ctable>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>前苏联\u003C\u002Ftd>\n\u003Ctd>车间空气中有害物质的最高容许浓度\u003C\u002Ftd>\n\u003Ctd>0.5mg\u002Fm\u003Csup>3\u003C\u002Fsup> \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>前苏联(1975)\u003C\u002Ftd>\n\u003Ctd>水体中有害物质最高允许浓度\u003C\u002Ftd>\n\u003Ctd>0.2mg\u002FL\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>前苏联\u003C\u002Ftd>\n\u003Ctd>污水中有害物质最高允许浓度\u003C\u002Ftd>\n\u003Ctd>20mg\u002FL\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\n\u003Cb>6.应急处理处置方法: \u003C\u002Fb>\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：用砂土或其它不燃材料吸附或吸收。也可以用不燃性分散剂制成的乳液刷洗，洗液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：一般不需要特殊防护，高浓度接触时可佩戴自吸过滤式防毒面具(半面罩)。 \n\u003Cbr \u002F>眼睛防护：一般不需特殊防护。必要时，戴安全防护眼镜。 \n\u003Cbr \u002F>身体防护：穿防静电工作服。 \n\u003Cbr \u002F>手防护：戴防苯耐油手套。 \n\u003Cbr \u002F>其它：工作现场严禁吸烟。工作毕，淋浴更衣。注意个人清洁卫生。 \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：喷水冷却容器，可能的话将容器从火场移至空旷处。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：泡沫、干粉、二氧化碳、砂土。用水灭火无效。\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr 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