查看“︁原甲酸三乙酯”︁的源代码

{{chembox
| Watchedfields = changed
| verifiedrevid = 393201977
| ImageFile = Triethoxymethane.svg
| ImageSize = 180px
| ImageAlt = 结构
| ImageFile2 = Triethyl-orthoformate-3D-balls.png
| ImageSize2 = 180
| ImageAlt2 = 球棍模型
| IUPACName = Diethoxymethoxyethane
| OtherNames = 三乙氧基甲烷，原甲酸乙酯，正甲酸三乙酯，三乙氧甲烷
| Section1 ={{Chembox Identifiers
|  CASNo_Ref = {{cascite|correct|CAS}}
|  CASNo = 122-51-0
|  PubChem = 31214
|  SMILES = CCOC(OCC)OCC
  }}
| Section2={{Chembox Properties
|  C = 7 | H = 16 | O = 3
|  Appearance = 无色透明有刺鼻气味液体<ref name="sl" />
|  Density = 0.891 g/mL
|  VaporPressure = 0.4 kPa (20°C)<ref name="sl">[http://www.sciencelab.com/xMSDS-Triethyl_Orthoformate-9925318 Material Safety Data Sheet - Triethyl Orthoformate]</ref>
|  MeltingPt= -76 °C<ref name="sl" />
|  BoilingPt= 143 °C<ref name="sl" />
|  Solubility = 溶于冷水、[[醇]]、[[乙醚]]<ref name="sl" /><br />水：1.35 g/L (分解)<ref name="sl" />
|  RefractIndex = (<math>\ n_D^{20}</math>) 1.3900<ref name="zghg" />
  }}
| Section3 = {{Chembox Hazards
|  ExternalMSDS = [https://fscimage.fishersci.com/msds/97204.htm Fischer Scientific]
|  FlashPt =
|  Autoignition =
|  NFPA-H = 2
|  NFPA-F = 3
|  NFPA-R = 0
|  NFPA-O =
|  EUClass = {{Hazchem Xi}}<ref name="cb">[http://www.chemicalbook.com/ChemicalProductProperty_CN_CB4126252.htm 原甲酸三乙酯]</ref>
|  LD50 = 7060 mg/kg (大鼠经口)<ref name="sl" /><ref name="zghg">中国化工产品大全 上卷，Da246 原甲酸三乙酯，页555</ref>
  }}
}}
'''原甲酸三乙酯'''是一种[[原酸酯]]化合物，结构式HC(OC<sub>2</sub>H<sub>5</sub>)<sub>3</sub>。

==性质==
无色透明澄清有刺激性气味的液体。微溶于水且遇水分解；与[[乙醇]]、[[乙醚]]混溶。低毒。

==制备==
由[[乙醇钠]]与[[氯仿]]於60～65°C下进行反应，再经分馏精制而得。
:<math>\ 3C_2H_5ONa+CHCl_3\rightarrow CH(OC_2H_5)_3+3NaCl</math>

==用途==
用作医药中间体，例如制取抗疟药[[氯喹]]、[[喹哌]]。也用作照相药剂原料和 [[Bodroux-Chichibabin醛合成|Bodroux-Chichibabin 醛合成]]中的试剂。

==参考资料==
{{reflist}}

[[Category:原酸酯]]
[[Category:乙酯]]