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其他含醛基或酮基不含其他含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 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:30.0%",{"key":345,"value":346},"申报要素","品名, 成分含量, 用途",{"key":348,"value":349},"Summary","2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%",[351,354,356,359,362,365,368,371,374,377,380,383,386,389],{"key":352,"value":353},"符号","GHS05, GHS07",{"key":355,"value":247},"信号词",{"key":357,"value":358},"危害声明","H290-H317-H318",{"key":360,"value":361},"警示性声明","P280-P305 + P351 + P338 + P310-P333 + P313",{"key":363,"value":364},"个人防护装备","Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter",{"key":366,"value":367},"危害码 (欧洲)","Xi:Irritant;",{"key":369,"value":370},"风险声明 (欧洲)","R41;R43",{"key":372,"value":373},"安全声明 (欧洲)","S26-S36\u002F37\u002F39-S45-S37\u002F39-S24",{"key":375,"value":376},"危险品运输编码","UN 3265 8\u002FPG 2",{"key":378,"value":379},"WGK德国","1",{"key":381,"value":382},"RTECS号","MD4550000",{"key":384,"value":385},"包装等级","III",{"key":387,"value":388},"危险类别","8",{"key":339,"value":340},"\u003Ctd>\n\n\u003Cp>\u003Cstrong>乙醛酸生态学数据:\u003C\u002Fstrong>\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\u003Cp>其它有害作用：该物质对环境可能有危害，对水体应给予特别注意。\u003C\u002Fp>\n\u003Cp>\u003C\u002Fp>\n\u003Cp>\u003Ca href=\"\u002Fen\u002Fcas\u002F298-12-4_77614.html#duXinDiv\">乙醛酸毒性英文版\u003C\u002Fa>\u003C\u002Fp>\n\n\u003C\u002Ftd>","\u003Cp>1.草酸电解法 草酸水溶液经电解还原，生成乙醛酸稀溶液，然后经蒸发、浓缩、冷冻、过滤逐渐提浓，最后得合格品包装。\u003C\u002Fp>\u003Cp>\u003C\u002Fp>\u003Cp>2.乙二醛氧化法 乙二醛在催化剂作用下经空气或氧气氧化，生成乙醛酸，然后经精制提纯得成品。另外，二氯乙酸与甲醇钠缩合得到二甲氧基乙酸钠，再用盐酸水解就生成乙醛酸。\u003C\u002Fp>\u003Cp>\u003C\u002Fp>\u003Cp>3.二氯乙酸法 将甲醇钠和甲醇投入反应罐内，加热至40~50℃，缓缓滴加二氯乙酸，在完成后回流反应2h，缩合完毕，然后冷至室温，过滤，甲醇洗涤，合并洗滤液，即得二甲氧基乙酸钠甲醇溶液。再将该溶液减压浓缩至干，加入2.8份盐酸于水浴上加热，并搅拌成糊状而得水解物，再升温至90℃，冷至10℃左右，过滤、分离，即得成品。\u003C\u002Fp>\u003Cp>4.顺酐臭氧化还原法 将顺酐溶于甲酸中，通入臭氧氧化，然后用锌粉等还原而得乙醛酸。\u003C\u002Fp>\u003Cp>5.制法： \u003C\u002Fp>\u003Cp>于装有搅拌器、温度计、通气导管、滴液漏斗的反应瓶中，加入40%的乙二醛（2）500g（3.4mol），亚硝酸钠1g，40%的硝酸90g（0.57mol），水160mL，搅拌下升温至60℃，反应开始后（有棕色气体生成），放热丙自动升温，开始通入空气。维持反应液60℃滴加40%的硝酸。控制滴加速度，每小时10g，共滴加50g，约需5h。加完后升温至75℃搅拌反应2h，并慢慢滴加40%的硝酸10g，而后于85%～100℃反应，直至乙二醛完全硝酸（GC跟踪），约需3～5h。冷至室温，得乙醛酸水溶液745～769g，浓度28.2%。减压浓缩，可以得到40%的乙醛酸（1）水溶液500～535g，收率80%～85%。\u003C\u002Fp>","\u003Ctd>\n\n\u003Cb>乙醛酸（约50%水溶液,约9mol\u002FL）\u003C\u002Fb>\n\u003Cb>修改号码：5\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块1. 化学品\u003C\u002Fstrong>\n\u003Cbr \u002F> 产品名称：\n\u003Cb>Glyoxylic Acid (ca. 50% in Water, ca. 9mol\u002FL)\u003C\u002Fb>\n\u003Cbr \u002F> 修改号码：\n\u003Cb>5\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块2. 危险性概述\u003C\u002Fstrong>\n\u003Cbr \u002F>\n\u003Cb>GHS分类\u003C\u002Fb>\n\u003Cbr \u002F> 　物理性危害\n\u003Cbr \u002F> 金属腐蚀性\n\u003Cb>第1级\u003C\u002Fb>\n\u003Cbr \u002F> 　健康危害\n\u003Cbr \u002F>\n\u003Cb>皮肤腐蚀\u002F刺激\u003C\u002Fb>\n\u003Cb>1C类\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>严重损伤\u002F刺激眼睛\u003C\u002Fb>\n\u003Cb>第1级\u003C\u002Fb>\n\u003Cbr \u002F> 皮肤敏感性\n\u003Cb>第1级\u003C\u002Fb>\n\u003Cbr \u002F> 　环境危害\n\u003Cbr \u002F> 急性水生毒性\n\u003Cb>第3级\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>GHS标签元素\u003C\u002Fb>\n\u003Cbr \u002F> 　图标或危害标志\n\u003Cbr \u002F> 　信号词危险\n\u003Cbr \u002F> 　危险描述可能腐蚀金属\n\u003Cbr \u002F> 造成严重的皮肤灼伤和眼损伤\n\u003Cbr \u002F> 可能导致皮肤过敏性反应\n\u003Cbr \u002F> 对水生生物有害\n\u003Cbr \u002F> 　防范说明\n\u003Cbr \u002F>\n\u003Cb>[预防]\u003C\u002Fb>只可存放于原用的容器内。\n\u003Cbr \u002F> 切勿吸入。\n\u003Cbr \u002F> 避免释放到环境中。\n\u003Cbr \u002F> 受污染的工作服不允许带出工作场所。\n\u003Cbr \u002F> 处理后要彻底清洗双手。\n\u003Cbr \u002F>\n\u003Cb>穿戴防护手套\u002F护目镜\u002F防护面具。\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>乙醛酸（约50%水溶液,约9mol\u002FL）\u003C\u002Fb>\n\u003Cb>修改号码：5\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块2. 危险性概述\u003C\u002Fstrong>\n\u003Cbr \u002F>\n\u003Cb>[急救措施]\u003C\u002Fb>吸入：将受害者移到新鲜空气处，在呼吸舒适的地方保持休息。\n\u003Cbr \u002F> 食入：漱口。切勿催吐。\n\u003Cbr \u002F> 眼睛接触：用水小心清洗几分钟。如果方便，易操作，摘除隐形眼镜。继续冲洗。\n\u003Cbr \u002F>\n\u003Cb>皮肤接触：立即去除\u002F脱掉所有被污染的衣物。用水清洗皮肤\u002F淋浴。\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>若皮肤刺激或发生皮疹：求医\u002F就诊。\u003C\u002Fb>\n\u003Cbr \u002F> 被污染的衣物清洗后方可重新使用。\n\u003Cbr \u002F>\n\u003Cb>立即呼叫解毒中心\u002F医生。\u003C\u002Fb>\n\u003Cbr \u002F> 吸收溢出物，防止材料被损坏。\n\u003Cbr \u002F>\n\u003Cb>[储存]\u003C\u002Fb>存放处须加锁。\n\u003Cbr \u002F>\n\u003Cb>[废弃处置]\u003C\u002Fb>\n\u003Cb>根据当地政府规定把物品\u002F容器交与工业废弃处理机构。\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块3. 成分\u002F组成信息\u003C\u002Fstrong>\n\u003Cbr \u002F>\n\u003Cb>单一物质\u002F混和物\u003C\u002Fb>混和物\n\u003Cbr \u002F>\n\u003Cb>化学名(中文名)：\u003C\u002Fb>\n\u003Cb>乙醛酸（约50%水溶液,约9mol\u002FL）\u003C\u002Fb>\n\u003Cbr \u002F> 百分比：\n\u003Cb>....\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>CAS编码：\u003C\u002Fb>\n\u003Cb>298-12-4\u003C\u002Fb>\n\u003Cbr \u002F> 分子式：\n\u003Cb>C2H2O3\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块4. 急救措施\u003C\u002Fstrong>\n\u003Cbr \u002F> 吸入：\n\u003Cb>将受害者移到新鲜空气处，保持呼吸通畅，休息。立即呼叫解毒中心\u002F医生。\u003C\u002Fb>\n\u003Cbr \u002F> 皮肤接触：\n\u003Cb>立即去除\u002F脱掉所有被污染的衣物。用大量肥皂和水轻轻洗。\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>立即呼叫解毒中心\u002F医生。\u003C\u002Fb>\n\u003Cbr \u002F> 眼睛接触：用水小心清洗几分钟。如果方便，易操作，摘除隐形眼镜。继续清洗。\n\u003Cbr \u002F>\n\u003Cb>立即呼叫解毒中心\u002F医生。\u003C\u002Fb>\n\u003Cbr \u002F> 食入：\n\u003Cb>立即呼叫解毒中心\u002F医生。漱口。切勿引吐。\u003C\u002Fb>\n\u003Cbr \u002F> 紧急救助者的防护：救援者需要穿戴个人防护用品，比如橡胶手套和气密性护目镜。\n\u003Cbr \u002F>\n\n\u003Cstrong>模块5. 消防措施\u003C\u002Fstrong>\n\u003Cbr \u002F> 合适的灭火剂：干粉，泡沫，雾状水，二氧化碳\n\u003Cbr \u002F> 特定方法：从上风处灭火，根据周围环境选择合适的灭火方法。\n\u003Cbr \u002F> 非相关人员应该撤离至安全地方。\n\u003Cbr \u002F> 周围一旦着火：如果安全，移去可移动容器。\n\u003Cbr \u002F> 消防员的特殊防护用具：灭火时，一定要穿戴个人防护用品。\n\u003Cbr \u002F>\n\n\u003Cstrong>模块6. 泄漏应急处理\u003C\u002Fstrong>\n\u003Cbr \u002F> 个人防护措施，防护用具，\n\u003Cb>使用特殊的个人防护用品（自携式呼吸器）。远离溢出物\u002F泄露处并处在上风处。确保\u003C\u002Fb>\n\u003Cbr \u002F> 紧急措施：足够通风。\n\u003Cbr \u002F> 泄露区应该用安全带等圈起来，控制非相关人员进入。\n\u003Cbr \u002F> 环保措施：防止进入下水道。\n\u003Cbr \u002F> 控制和清洗的方法和材料：用合适的吸收剂（如：旧布，干砂，土，锯屑）吸收泄漏物。一旦大量泄漏，筑堤控\n\u003Cbr \u002F> 制。附着物或收集物应该立即根据合适的法律法规废弃处置。\n\u003Cbr \u002F>\n\n\u003Cstrong>模块7. 操作处置与储存\u003C\u002Fstrong>\n\u003Cbr \u002F> 处理\n\u003Cbr \u002F> 技术措施：在通风良好处进行处理。穿戴合适的防护用具。防止烟雾产生。处理后彻底清洗双手\n\u003Cbr \u002F> 和脸。\n\u003Cbr \u002F> 注意事项：如果可能，使用封闭系统。如果蒸气或浮质产生，使用通风、局部排气。\n\u003Cbr \u002F> 操作处置注意事项：避免接触皮肤、眼睛和衣物。\n\u003Cbr \u002F> 使用耐腐蚀设备。\n\u003Cbr \u002F>\n\u003Cb>乙醛酸（约50%水溶液,约9mol\u002FL）\u003C\u002Fb>\n\u003Cb>修改号码：5\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块7. 操作处置与储存\u003C\u002Fstrong>\n\u003Cbr \u002F> 贮存\n\u003Cbr \u002F> 储存条件：保持容器密闭。存放于凉爽、阴暗处。\n\u003Cbr \u002F> 存放处须加锁。\n\u003Cbr \u002F> 远离不相容的材料比如氧化剂存放。\n\u003Cbr \u002F> 包装材料：依据法律。只可存放在原用的容器內。\n\u003Cbr \u002F>\n\n\u003Cstrong>模块8. 接触控制和个体防护\u003C\u002Fstrong>\n\u003Cbr \u002F> 工程控制：尽可能安装封闭体系或局部排风系统。同时安装淋浴器和洗眼器。\n\u003Cbr \u002F> 个人防护用品\n\u003Cbr \u002F> 　呼吸系统防护：\n\u003Cb>半面罩或全面罩呼吸器，自携式呼吸器（SCBA），供气呼吸器等。依据当地和政府法\u003C\u002Fb>\n\u003Cbr \u002F> 规，使用通过政府标准的呼吸器。\n\u003Cbr \u002F> 　手部防护：防渗手套。\n\u003Cbr \u002F> 　眼睛防护：护目镜。如果情况需要，佩戴面具。\n\u003Cbr \u002F> 　皮肤和身体防护：防渗防护服。如果情况需要，穿戴防护靴。\n\u003Cbr \u002F>\n\n\u003Cstrong>模块9. 理化特性\u003C\u002Fstrong>\n\u003Cbr \u002F> 液体\n\u003Cbr \u002F>\n\u003Cb>外形（20°C）：\u003C\u002Fb>\n\u003Cbr \u002F> 外观：透明\n\u003Cbr \u002F> 颜色：\n\u003Cb>无色-黄色\u003C\u002Fb>\n\u003Cbr \u002F> 气味：无资料\n\u003Cbr \u002F>\n\u003Cb>pH:\u003C\u002Fb>无数据资料\n\u003Cbr \u002F> 熔点：无资料\n\u003Cbr \u002F>\n\u003Cb>沸点\u002F沸程\u003C\u002Fb>无资料\n\u003Cbr \u002F> 闪点：无资料\n\u003Cbr \u002F> 爆炸特性\n\u003Cbr \u002F> 　爆炸下限：无资料\n\u003Cbr \u002F> 　爆炸上限：无资料\n\u003Cbr \u002F> 密度：无资料\n\u003Cbr \u002F> 溶解度：\n\u003Cbr \u002F>\n\u003Cb>[水]\u003C\u002Fb>无资料\n\u003Cbr \u002F>\n\u003Cb>[其他溶剂]\u003C\u002Fb>无资料\n\u003Cbr \u002F>\n\u003Cb>log水分配系数 =\u003C\u002Fb>\n\u003Cb>-0.07\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块10. 稳定性和反应性\u003C\u002Fstrong>\n\u003Cbr \u002F> 化学稳定性：一般情况下稳定。\n\u003Cbr \u002F> 危险反应的可能性：未报道特殊反应性。\n\u003Cbr \u002F> 须避免接触的物质\n\u003Cb>氧化剂, 碱\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>危险的分解产物:\u003C\u002Fb>\n\u003Cb>一氧化碳, 二氧化碳\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块11. 毒理学信息\u003C\u002Fstrong>\n\u003Cbr \u002F> 急性毒性：\n\u003Cb>orl-rat LDLo:3 g\u002Fkg\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>ims-rat LDLo:250 mg\u002Fkg\u003C\u002Fb>\n\u003Cbr \u002F> 对皮肤腐蚀或刺激：无资料\n\u003Cbr \u002F> 对眼睛严重损害或刺激：无资料\n\u003Cbr \u002F> 生殖细胞变异原性：\n\u003Cb>mmo-sat 200 ug\u002Fplate (+S9)\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>mmo-sat 1500 ug\u002Fplate (-S9)\u003C\u002Fb>\n\u003Cbr \u002F> 致癌性：\n\u003Cbr \u002F>\n\u003Cb>IARC =\u003C\u002Fb>无资料\n\u003Cbr \u002F>\n\u003Cb>NTP =\u003C\u002Fb>无资料\n\u003Cbr \u002F>\n\u003Cb>乙醛酸（约50%水溶液,约9mol\u002FL）\u003C\u002Fb>\n\u003Cb>修改号码：5\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块11. 毒理学信息\u003C\u002Fstrong>\n\u003Cbr \u002F> 生殖毒性：无资料\n\u003Cbr \u002F>\n\u003Cb>RTECS 号码:\u003C\u002Fb>\n\u003Cb>MD4550000\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块12. 生态学信息\u003C\u002Fstrong>\n\u003Cbr \u002F> 生态毒性：\n\u003Cbr \u002F> 鱼类：\n\u003Cb>96h LC50:41 mg\u002FL (Oryzias latipes)\u003C\u002Fb>\n\u003Cbr \u002F> 甲壳类：\n\u003Cb>48h LC50:51 mg\u002FL (Daphnia magna)\u003C\u002Fb>\n\u003Cbr \u002F> 藻类：\n\u003Cb>72h EC50:33 mg\u002FL (Selenastrum capricornutum)\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>残留性 \u002F 降解性：\u003C\u002Fb>\n\u003Cb>96 % (by BOD), 100 % (by TOC), 100 % (by HPLC)\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>潜在生物累积 （BCF):\u003C\u002Fb>\n\u003Cb>3\u003C\u002Fb>\n\u003Cbr \u002F> 土壤中移动性\n\u003Cbr \u002F>\n\u003Cb>　log水分配系数：\u003C\u002Fb>\n\u003Cb>-0.07\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>　土壤吸收系数 （Koc）：\u003C\u002Fb>\n\u003Cb>1\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>3 x 10-4\u003C\u002Fb>\n\u003Cbr \u002F> 　亨利定律\n\u003Cbr \u002F>\n\u003Cb>constant(PaM3\u002Fmol):\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块13. 废弃处置\u003C\u002Fstrong>\n\u003Cbr \u002F> 如果可能，回收处理。请咨询当地管理部门。废弃处置时遵守国家、地区和当地的所有法规。\n\u003Cbr \u002F>\n\n\u003Cstrong>模块14. 运输信息\u003C\u002Fstrong>\n\u003Cbr \u002F> 联合国分类：\n\u003Cb>第8类 腐蚀品\u003C\u002Fb>\n\u003Cbr \u002F>\n\u003Cb>UN编号：\u003C\u002Fb>\n\u003Cb>3265\u003C\u002Fb>\n\u003Cbr \u002F> 正式运输名称：\n\u003Cb>腐蚀性液体, 酸性的, 有机的, 不另作详细说明\u003C\u002Fb>\n\u003Cbr \u002F> 包装等级：\n\u003Cb>III\u003C\u002Fb>\n\u003Cbr \u002F>\n\n\u003Cstrong>模块15. 法规信息\u003C\u002Fstrong>\n\u003Cbr \u002F>\n\u003Cb>《危险化学品安全管理条例》（2002年1月26日国务院发布，2011年2月16日修订）: 针对危险化学品的安全使用、\u003C\u002Fb>\n\u003Cbr \u002F> 生产、储存、运输、装卸等方面均作了相应的规定。\n\u003Cbr \u002F>\n\u003Cbr \u002F>\n\n\u003Cstrong> 模块16 - 其他信息 \u003C\u002Fstrong>\n\u003Cbr \u002F>N\u002FA\n\u003Cbr \u002F>\n\u003Cbr \u002F>\u003Cbr \u002F>\u003Cbr \u002F>\n\u003C\u002Ftd>","2026-08-21T07:03:49.207433Z",false,[396,402,408,411,417,423],{"slug":397,"cid":398,"name":399,"nameZh":400,"cas":401},"785892571237847040","J-32936-3","Lithium carbonate","碳酸锂","554-13-2",{"slug":403,"cid":404,"name":405,"nameZh":406,"cas":407},"785881296235663360","J-18635-3","Glycine","甘氨酸","56-40-6",{"slug":409,"cid":290,"name":410,"nameZh":291,"cas":292},"785883707599753216","Glycolic acid",{"slug":412,"cid":413,"name":414,"nameZh":415,"cas":416},"785891437311954944","J-1408131-8","Lithium acrylate","丙烯酸锂","13270-28-5",{"slug":418,"cid":419,"name":420,"nameZh":421,"cas":422},"785897958599036928","J-1309218-4","Lithium formate","甲酸锂","556-63-8",{"slug":424,"cid":425,"name":426,"nameZh":427,"cas":428},"785888292854829056","J-24552-8","Beryllium carbonate","碳酸铍","13106-47-3",1792604629088,"zh-CN",[]]