<p id="tbdh7"></p><noframes id="tbdh7">
<p id="tbdh7"></p>

<video id="tbdh7"><output id="tbdh7"><delect id="tbdh7"></delect></output></video>
<video id="tbdh7"></video>

<video id="tbdh7"><video id="tbdh7"><delect id="tbdh7"></delect></video></video>
<noframes id="tbdh7"><p id="tbdh7"><output id="tbdh7"></output></p>

<video id="tbdh7"><p id="tbdh7"><output id="tbdh7"></output></p></video><video id="tbdh7"><output id="tbdh7"></output></video>

<p id="tbdh7"></p>

<output id="tbdh7"></output>
<p id="tbdh7"><output id="tbdh7"></output></p>
<noframes id="tbdh7"><video id="tbdh7"><output id="tbdh7"></output></video>

<video id="tbdh7"></video>
<video id="tbdh7"></video>
<p id="tbdh7"></p>
<output id="tbdh7"></output>
<p id="tbdh7"><output id="tbdh7"></output></p>
<video id="tbdh7"><p id="tbdh7"></p></video>
<noframes id="tbdh7">
<video id="tbdh7"><output id="tbdh7"></output></video>

<p id="tbdh7"><delect id="tbdh7"><font id="tbdh7"></font></delect></p><video id="tbdh7"><p id="tbdh7"><delect id="tbdh7"></delect></p></video>
<p id="tbdh7"><output id="tbdh7"><font id="tbdh7"></font></output></p>
<noframes id="tbdh7"><video id="tbdh7"><delect id="tbdh7"></delect></video><p id="tbdh7"></p><video id="tbdh7"></video>

<video id="tbdh7"></video>

<p id="tbdh7"></p>

精蒽

    

□來源:由煤焦油的蒽油餾份分出而得。

□分子式和分子量:C14 H10  178

□性狀:帶有草綠色的粉狀晶體,較易溶于熱苯,

  不溶于水,難溶乙醇和乙醚。

□規格:  含量(%)   初熔點(℃)

 優等品  ≥95          ≥216

 一等品  ≥92          ≥212

 合格品  ≥90          ≥210

□用途:用于生產蒽醌和染料等。

上一個:

下一個:

本網站由阿里云提供云計算及安全服務
国产一区二区精品久久

<p id="tbdh7"></p><noframes id="tbdh7">
<p id="tbdh7"></p>

<video id="tbdh7"><output id="tbdh7"><delect id="tbdh7"></delect></output></video>
<video id="tbdh7"></video>

<video id="tbdh7"><video id="tbdh7"><delect id="tbdh7"></delect></video></video>
<noframes id="tbdh7"><p id="tbdh7"><output id="tbdh7"></output></p>

<video id="tbdh7"><p id="tbdh7"><output id="tbdh7"></output></p></video><video id="tbdh7"><output id="tbdh7"></output></video>

<p id="tbdh7"></p>

<output id="tbdh7"></output>
<p id="tbdh7"><output id="tbdh7"></output></p>
<noframes id="tbdh7"><video id="tbdh7"><output id="tbdh7"></output></video>

<video id="tbdh7"></video>
<video id="tbdh7"></video>
<p id="tbdh7"></p>
<output id="tbdh7"></output>
<p id="tbdh7"><output id="tbdh7"></output></p>
<video id="tbdh7"><p id="tbdh7"></p></video>
<noframes id="tbdh7">
<video id="tbdh7"><output id="tbdh7"></output></video>

<p id="tbdh7"><delect id="tbdh7"><font id="tbdh7"></font></delect></p><video id="tbdh7"><p id="tbdh7"><delect id="tbdh7"></delect></p></video>
<p id="tbdh7"><output id="tbdh7"><font id="tbdh7"></font></output></p>
<noframes id="tbdh7"><video id="tbdh7"><delect id="tbdh7"></delect></video><p id="tbdh7"></p><video id="tbdh7"></video>

<video id="tbdh7"></video>

<p id="tbdh7"></p>