<p><b>三甘醇</b>，結構式HO(CH<sub>2</sub>CH<sub>2</sub>O)<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>OH。
</p>


<h2><span id=".E6.80.A7.E8.B4.A8"></span><span id="性质">性質</span></h2>
<p>無色幾乎無臭吸濕性粘稠液體，可燃。與水和乙醇混溶，微溶於乙醚，幾乎不溶於石油醚。毒性極低，未見中毒病例。</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>三甘醇是通過環氧乙烷水合製取乙二醇時的副產物，由二甘醇繼續與環氧乙烷反應得到。
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ H_{2}C(O)CH_{2}+HOCH_{2}CH_{2}OCH_{2}CH_{2}OH\rightarrow }">
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    <annotation encoding="application/x-tex">{\displaystyle \ H_{2}C(O)CH_{2}+HOCH_{2}CH_{2}OCH_{2}CH_{2}OH\rightarrow }</annotation>
  </semantics></math></span></span><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \ HOCH_{2}CH_{2}OCH_{2}CH_{2}OCH_{2}CH_{2}OH}">
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    <annotation encoding="application/x-tex">{\displaystyle \ HOCH_{2}CH_{2}OCH_{2}CH_{2}OCH_{2}CH_{2}OH}</annotation>
  </semantics></math></span></span></dd></dl><h2><span id=".E7.94.A8.E9.80.94"></span><span id="用途">用途</span></h2>
<p>用作樹脂、橡膠、油漆、油脂、農藥、硝酸纖維素的溶劑，增塑劑，天然氣乾燥劑，纖維潤滑劑，菸草防干劑等。
</p>
<h2><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span><span id="参考资料">參考資料</span></h2>

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**三甘醇**，結構式 HO (CH2CH2O)2CH2CH2OH。

## 性質

無色幾乎無臭吸濕性粘稠液體，可燃。與水和乙醇混溶，微溶於乙醚，幾乎不溶於石油醚。毒性極低，未見中毒病例。

## 製備

三甘醇是通過環氧乙烷水合製取乙二醇時的副產物，由二甘醇繼續與環氧乙烷反應得到。

　
: $\ H_{2}C(O)CH_{2}+HOCH_{2}CH_{2}OCH_{2}CH_{2}OH\rightarrow $ $\ HOCH_{2}CH_{2}OCH_{2}CH_{2}OCH_{2}CH_{2}OH$

## 用途

用作樹脂、橡膠、油漆、油脂、農藥、硝酸纖維素的溶劑，增塑劑，天然氣乾燥劑，纖維潤滑劑，菸草防干劑等。

## 參考資料
112-27-6