Sodium Ethoxide 乙醇钠

CAS 141-52-6 MFCD00012417

化学结构图

141-52-6
SMILES: CC[O-].[Na+]

化学属性

Mol. FormulaC2H5NaO
Mol. Weight68.05
Density0.868
Refractive index1.3850
Vapor Density1.6 (vs air)
Vapor Pressure<;0.1 mmHg ( 20 °C)
Flash Point30°C(lit.)
TSCAYes
Melting Point>300
Boiling Point91 ºC
SolubilityMISCIBLE
Stability对光线敏感,对湿度敏感
Appearance white to yellow pwdr.

别名和识别编码

Chemical NameSodium Ethoxide
CAS Number141-52-6
EC Number205-487-5
Beilstein Registry Number3593646
MDL NumberMFCD00012417
Synonym Caustic alcohol;Sodium ethoxide NE-21 SODIUM ETHYLATE Sodiumethoxideinethanol ethoxysodium ethylalcohol,sodiumsalt sodiumethylate(sodiumethoxide) 乙氧基钠 乙氧基钠,乙醇钠盐,乙氧钠 乙氧基钠;乙氧钠 乙氧钠 乙醇钠
PubChem Substance ID87559550
Merck Number8539
Reaxys-RN3593646
Chemical Name Translation乙醇钠
LabNetwork Molecule IDLN00164557
InChIInChI=1S/C2H5O.Na/c1-2-3;/h2H2,1H3;/q-1;+1
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分类

  • {SNA} Chemical Synthesis, Essential Chemicals, Inorganic Salts, Solutions and Reagents, Organic Bases, Research Essentials, Synthetic Reagents, Technical Grade
  • {SNA} Acids & Bases, Bases, Chemical Synthesis, Essential Chemicals, Organic Bases, Research Essentials, Salts, Sodium Salts, Synthetic Reagents
  • {SNA} Acids & Bases, Bases, Chemical Synthesis, Essential Chemicals, Inorganic Salts, Solutions and Reagents, Organic Bases, Research Essentials, Synthetic Reagents, Technical Grade
  • {SNA} Acids & Bases,

产品应用

  • 用作强碱性催化剂;乙氧基化剂以及作为一种凝聚剂和还原剂用于有机合成中。应用乙醇钠的医药产品有苯比妥;保泰松;扑痫酮;甲基多巴;丁卡因盐酸盐;易咳嗪;氨蝶呤;乙胺嘧啶;匹呋氨苄青霉素等。此外,还用于农药及作分析试剂。

相关文献及参考

  • Extensively used as a base for the generation of carbanions in a variety of alkylation and condensation reactions. Organic Syntheses examples of the use of solid sodium ethoxide include:
  • Condensation of acetone with ethyl acetate: Org. Synth. Coll., 3, 17 (1955). Benzoylation of acetophenone with ethyl benzoate: Org. Synth. Coll., 3, 251 (1955). ɑ-Formylations with ethyl formate: Org. Synth. Coll., 3, 300 (1955); 4, 536 (1963). ɑ-Ethoxalylation of diethyl succinate with diethyl oxalate: Org. Synth. Coll., 5, 687 (1973).
  • In reactions where the presence of excess ethanol is undesirable, the use of pre-formed solid sodium ethoxide is much more convenient and safer than preparation in situ from sodium metal. This applies to many literature condensation reactions which employ powdered sodium in, for example ether or toluene, where the difficulty and hazards of obtaining a satisfactory sodium dispersion can be considerable. Solid sodium ethoxide often gives superior results, with better control of exothermic reactions.
  • Merck: 14,8613
  • Merck: 14,8613 Beilstein: 1,IV,1289

安全信息

Signal word Danger
GHS Symbol
WGK Germany1
Safety Statements
  • S16 Keep away from sources of ignition - No smoking 远离火源,禁止吸烟;
  • S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 眼睛接触后,立即用大量水冲洗并征求医生意见;
  • S36/37/39 Wear suitable protective clothing, gloves and eye/face protection 穿戴适当的防护服、手套和眼睛/面保护;
  • S43 In case of fire use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add -?Never use water) 着火时使用(指明具体的消防器材种类,如果用水增加危险,注明“禁止用水”
  • S45 In case of accident or if you feel unwell seek medical advice immediately (show the label where possible) 发生事故时或感觉不适时,立即求医(可能时出示标签);
  • S8 Keep container dry 保持容器干燥;
Risk Statements
  • R11 Highly flammable 非常易燃
  • R14 Reacts violently with water 遇水会猛烈反应
  • R34 Causes burns 会导致灼伤
  • R36/37/38 Irritating to eyes, respiratory system and skin 对眼睛、呼吸系统和皮肤有刺激性
Precautionary statements
  • P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. 远离热源/火花/明火/热的表面。——禁止吸烟。
  • P235+P410
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray. 不要吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 避免吸入粉尘/烟/气体/烟雾/蒸汽/喷雾。
  • P264 Wash hands thoroughly after handling. 处理后要彻底洗净双手。
  • P271 Use only outdoors or in a well-ventilated area.? 只能在室外或通风良好的地方使用。
  • P280 Wear protective gloves/protective clothing/eye protection/face protection. 戴防护手套/防护服/眼睛的保护物/面部保护物。
  • P301+P330+P331+P310
  • P303+P361+P353+P310+P363
  • P304+P340
  • P304+P340+P310
  • P305+P351+P338
  • P305+P351+P338+P310
  • P308+P313
  • P310 Immediately call a POISON CENTER or doctor/physician. 立即呼救解毒中心或医生/医师。
  • P403+P233
  • P405 Store locked up. 上锁保管。
  • P407 Maintain air gap between stacks/pallets. 在堆叠/货板间保持气隙。
  • P420 Store away from other materials. 远离其他材料。
  • P501 Dispose of contents/container to..… 处理内容物/容器.....
Hazard statements
  • H225 Highly flammable liquid and vapour 高度易燃液体和蒸气
  • H251 Self-heating: may catch fire 自我放热:可能着火
  • H252 Self-heating in large quantities; may catch fire 自我释放大量的热;可能着火。
  • H314 Causes severe skin burns and eye damage 导致严重的皮肤灼伤和眼睛损伤
Personal Protective Equipment Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Packing GroupII
UN Number 3206
Storage condition Moisture Sensitive Store at R.T. Air & Moisture Sensitive 充氩保存 密封阴凉干燥避光保存。
Hazard Codes 4.2 F,C
Hazard Class4.2/8
Warnings 危化品目录(2015)
Restrict 危险品

其他信息

  • 用途三:用作强碱性催化剂、乙氧基化剂以及作为一种凝聚剂和还原剂用于有机合成中。应用乙醇钠的医药产品有苯比妥、保泰松、扑痫酮、甲基多巴、丁卡因盐酸盐、易咳嗪、氨蝶呤、乙胺嘧啶、匹呋氨苄青霉素等。此外,还用于农药及作分析试剂。
  • {
  • 海关编码:29051900
  • {Chemica
  • MSDS 信息:乙氧基钠(141-52-6).msds
  • Alfa Aesar:乙醇钠,96% Sodium ethoxide, 96%(141-52-6)
  • 常规方法:用铁桶密封包装,每桶200kg或160kg。贮运中要防火、防水、防潮。按易燃有毒化学品规定贮运。
  • F:3-8-10-23
  • 上游原料:乙醇 --> 氢氧化钠 --> 钠 --
  • 蒸气压:<;0.1 mm Hg ( 20 °C)
  • 用途一:主要用于医药及农药工业
  • 图谱信息:乙醇钠(141-52-6)红外图谱(IR2) 乙醇钠(141-52-6)红外图谱(IR1)
  • 下游产品:烯效唑 --> 2-甲基十一醛 --> 甲氧基丙二酸甲乙酯 --> 吐温 80 --> 胺苯磺隆 --> 萘呋胺酯 --> 杨梅醛 --> 2-氨基-4,6-二羟基嘧啶 --> 6-甲基-2-肼基嘧啶-4-醇 --> 乙氧基-丙二酸二乙酯 --> N4-甲基胞嘧啶 --> 4-(4-氟苄氧基)苯甲醛 --> 异戊基丙二酸二乙酯 --> 2,2-二氯-1-(4-乙氧苯基)环丙烷羧酸 --> 聚氧乙烯山梨糖醇酐单棕榈酸酯 --> 正丁基丙二酸二乙酯 --> 1,1,2-乙烷三羧酸三乙酯 --> 2,4,7-三氨基-6-苯基蝶啶 --> 2-(2-吗啉-4-基乙氧基)苯胺 --> 环丁基甲醇 --> 格列齐特 --> 2-氧-3-哌啶羧酸乙酯 --> 异烟酰乙酸乙酯 --> 二乙基 2-(2-氰基乙基)丙二酸 --> 2,4-二乙氧基嘧啶 --> 3-糠酸 --> 4-氨基-DL-苯丙氨酸 --> 二丙基丙二酸二乙酯 --> 3-氨基吡咯烷 --> 羟胺 --> 甲基三乙氧基硅烷 --> 乙基丙二酸二甲酯 --> (3,7-二甲基-6-辛烯基)氧基乙醛 --> 吐温 20 --> 高加成壬基酚聚氧乙烯醚 --> 2-乙氧基噻唑 --> 2-甲氧基-3-甲基吡嗪
  • 用途四:用作强碱性催化剂;乙氧基化剂以及作为一种凝聚剂和还原剂用于有机合成中。应用乙醇钠的医药产品有苯比妥;保泰松;扑痫酮;甲基多巴;丁卡因盐酸盐;易咳嗪;氨蝶呤;乙胺嘧啶;匹呋氨苄青霉素等。此外,还用于农药及作分析试剂。
  • TSCA:Yes
  • 防护措施:无毒,是
  • Acros Organics:乙醇钠 Sodium ethoxide, 21% in ethanol, pure(141-52-6)
  • 存储注意事项:惰性气体保护
  • 方法一:1.苯、乙醇、水三元共沸法 将固体氢氧化钠溶于乙醇和纯苯溶液中(或环己烷和乙醇溶液中),加热回流,通过塔式反应器连续反应脱水,使总碱量和游离碱达到标准为止。塔顶蒸出苯、乙醇和水的三元共沸混合物,塔底得到乙醇钠的乙醇溶液。2.金属钠法 由金属钠与无水乙醇作用而得。
  • 对光敏感。有吸湿性。露置于空气中分解。久储色变深。遇水分解成氢氧化钠和乙醇。溶于无水乙醇而不分解,不溶于苯。易燃。
  • TCI Shanghai:乙醇钠(约20%的乙醇溶液) Sodium Eth
  • Sigma Aldrich:141-52-6(sigmaaldrich)
  • 乙醇钠价格(试剂级):更新日期 产品编号 产品名称 包装 价格 2011/08/23 80116824 乙醇钠;乙氧基钠 25g 35元 2011/04/16 S0547 乙醇钠 Sodium Ethoxide 100G 240元 2011/04/16 S0548 乙醇钠(约20%的乙醇溶液) Sodium Ethoxide (ca. 20% in Ethanol) 500ML 540元
  • 用途二:用作强碱性催化剂、乙氧基化剂以及作为还原剂用于有机合成、医药合成等

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