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>5mg\u002Fkg；\u003C\u002Fp>\n\u003Cp>哺育动物LD50：1950mg\u002Fkg；\u003C\u002Fp>\n\u003Cp>2、其他多剂量毒性数据：\u003C\u002Fp>\n\u003Cp>大鼠口径TDLO：21mg\u002Fkg\u002F70D-I；兔子口径TDLO：24500mg\u002Fkg\u002F14W-I；\u003C\u002Fp>\n\u003Cp>3.急性毒性\u003C\u002Fp>\n\u003Cp>LD50：535mg\u002Fkg（大鼠经口）\u003C\u002Fp>\n\u003Cp>LC50：102235mg\u002Fm\u003Csup>3\u003C\u002Fsup>（大鼠吸入）\u003C\u002Fp>\n\u003Cp>4.刺激性\u003C\u002Fp>\n\u003Cp>家兔经皮：500mg（24h），轻度刺激。\u003C\u002Fp>\n\u003Cp>家兔经眼：259μg（24h），重度刺激。\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>\u003Cstrong>二甲基硫生态学数据:\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\u003Cp>1.生态毒性 LC50：7.5~15ppm（鱼类）\u003C\u002Fp>\n\u003Cp>2.生物降解性 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3.5d（理论）。\u003C\u002Fp>\n\u003Cp>光氧化半衰期为8h。\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>\u003Ca href=\"\u002Fen\u002Fcas\u002F75-18-3_952417.html#duXinDiv\">二甲基硫毒性英文版\u003C\u002Fa>\u003C\u002Fp>\n\n\u003C\u002Ftd>","\u003Cp>1.精制方法：利用氯化汞与甲硫醚生成络合物进行精制：在1250mL的乙醇中加入1mol氯化汞，再于此溶液中加入0.67mol甲硫醚的醇溶液。生成的固体经重结晶后得到具一定熔点，结构为2(CH3)2S·HgCl2的络合物晶体。将250mL浓盐酸溶于780mL水中，加入500g精制的络合物进行加热，使甲硫醚分离。水洗后用氯化钙干燥，纯度可达99.995%（mol）。\u003C\u002Fp>\u003Cp>\u003C\u002Fp>","\u003Ctd>\n\n\u003Ctable>\n\u003Ctbody>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 国标编号: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 31033 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> ＣＡＳ: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 75-18-3 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 中文名称: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 甲硫醚 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 英文名称: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> dimethyl sulfide \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 别 名: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 二甲硫；二甲硫醚；二甲基硫 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 分子式: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> C\u003Csub>2\u003C\u002Fsub>H\u003Csub>6\u003C\u002Fsub>S；(CH\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>S \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 分子量: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 62.13 \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 熔 点: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> -83.2℃ 沸点：38℃ \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 密 度: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 相对密度(水=1)0.85； \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 蒸汽压: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> -36℃ \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>\u003Cstrong> 溶解性: \u003C\u002Fstrong>\u003C\u002Ftd>\n\u003Ctd> 不溶于水，溶于乙醇、乙醚等多数有机溶剂 \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，有不愉快的气味 \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> 用作多数无机物的溶剂、催化剂 \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：蒸气对鼻、喉有刺激性，引起咳嗽和胸部不适。持续或高浓度吸入出现头痛、恶心和呕吐。液体或雾对眼有刺激性。可引起皮炎。 \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>535mg\u002Fkg(大鼠经口)；LC\n\u003Csub>50\u003C\u002Fsub>102235mg\u002Fm\n\u003Csup>3\u003C\u002Fsup>(大鼠吸入)\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、高热极易燃烧爆炸。受高热分解产生有毒的硫化物烟气。与氧化剂能发生强烈反应。与水、水蒸气、酸类反应产生有毒和易燃气体。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、硫化物。 \n\n\u003Cb>3.现场应急监测方法: \u003C\u002Fb>\n\u003Cbr \u002F> 气体检测管法；便携式气相色谱法\n\u003Cbr \u002F>气体速测管（德国德尔格公司产品） \n\n\u003Cb>4.实验室监测方法: \u003C\u002Fb>\n\u003Cbr \u002F> 气相色谱法(GB\u002FT14678-93，空气) \n\n\u003Cb>5.环境标准: \u003C\u002Fb>\n\u003Cp>\u003C\u002Fp>\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>50mg\u002Fm\u003Csup>3\u003C\u002Fsup> \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>前苏联(1978)\u003C\u002Ftd>\n\u003Ctd>居民区大气中最高容许浓度 \u003C\u002Ftd>\n\u003Ctd>0.08mg\u002Fm\u003Csup>3\u003C\u002Fsup>(最大值)\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>前东德(1977)\u003C\u002Ftd>\n\u003Ctd>大气质量标准\u003C\u002Ftd>\n\u003Ctd>0.03mg\u002Fm\u003Csup>3\u003C\u002Fsup> \u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>中国(GB14554-93)\u003C\u002Ftd>\n\u003Ctd>恶臭污染物厂界标准\u003C\u002Ftd>\n\u003Ctd>一级：0.03 mg\u002Fm\u003Csup>3\u003C\u002Fsup>\u003Cbr \u002F>二级：0.07～0.15mg\u002Fm\u003Csup>3\u003C\u002Fsup>\u003Cbr \u002F>三级：0.55～1.10mg\u002Fm\u003Csup>3\u003C\u002Fsup> \u003Cbr \u002F>\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>中国(GB14554-93)\u003C\u002Ftd>\n\u003Ctd>恶臭污染物排放标准\u003C\u002Ftd>\n\u003Ctd>0.33～5.2kg\u002Fh\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003Ctr>\n\u003Ctd>前苏联(1975)\u003C\u002Ftd>\n\u003Ctd>生活饮用水中有害物质最高允许浓度\u003C\u002Ftd>\n\u003Ctd>0.01mg\u002FL\u003C\u002Ftd>\n\u003C\u002Ftr>\n\u003C\u002Ftbody>\n\u003C\u002Ftable>\n\u003Cp>\u003C\u002Fp>\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：用活性炭或其它惰性材料吸收。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：空气中浓度较高时，建议佩戴自吸过滤式防毒面具(半面罩)。紧急事态抢救或撤离时，必须佩戴空气呼吸器。\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：戴乳胶手套。\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：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。\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\n\n\u003C\u002Ftd>","2026-08-21T07:51:12.859463Z",false,[412,418,424,430,436,442],{"slug":413,"cid":414,"name":415,"nameZh":416,"cas":417},"785896576156438528","J-44489-9","Sodium 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