• <code id="gycy6"></code>
  • 發布信息當前位置: 首頁 » 產品 » 化工 » 中間體 »

    2-吡咯烷酮

    點擊圖片查看原圖
    品牌: 埃弗格瑞
    單價: 面議
    起訂: 1 kg
    供貨總量: 10000 kg
    發貨期限: 自買家付款之日起 7 天內發貨
    所在地: 安徽 合肥市
    有效期至: 長期有效
    最后更新: 2017-08-16 09:08
    瀏覽次數: 835
    詢價
    公司基本資料信息
     
     
    產品詳細說明
     

    品名和結構:                                                                                                                 

    通用名稱:2-吡咯烷酮                                                                                                   

    化學名稱:α-吡咯烷酮                                                                                                  

    分子式:C4H7NO                                                                                                  

    CAS登記號:616-45-5                                                                                            

    結 構 式:                                                                                                           

                                                                     

    物化性質:                                                                                                         

    無色到淡黃色液體或結晶。                                                                    

    熔點24.6,                                                                           

    沸點245,                                                                            

    密度1.116(25/4),                                                                    

    折光率1.4870。                                                                         

    粘度13.3。                                                                                     

    飽和蒸氣壓1.33 kPa /122。                                                             

    閃點129。                                                                           

    引燃溫度145。                                                                      

    燃燒熱2286.5 kJ/mol。                                                                      

    能溶于水、醇、醚、氯仿、苯、乙酸乙酯和二硫化碳等多數有機溶劑。難溶于石油醚。                                        

     

    項 目
    優等品
    一等品
    含量%(m/m)
    ≥99.5
    ≥99.0
    水份含量%(m/m)
    ≤0.1
    ≤0.3
    折光率nD
    1.4830~1.4850
    1.4830~1.4850
    密度20C(g/ml)
    1.097~1.117
    1.097~1.117
    外 觀
    無色或淡黃透明液體
     
                                                                                                                                               

     

    用 途                                                                                                         

    α-吡咯烷酮為無色的高沸點極性溶劑,是有機合成中間體。主要用于合成樹脂、農藥、多元醇、油墨和碘的溶劑。也是生產聚乙烯吡咯烷酮、錦綸-4和腦復康的原料。                                                                  

                                                                                                                          

    包裝和儲運:                                                                                                        

    200公斤塑料/鐵桶,避免吸入及與皮膚、眼睛的接觸,使用時需戴防護手套。隱涼、干燥、密封儲存
    0條 [查看全部]  相關評論
    ? 99久久久国产精品免费,国产精品自在拍在线拍,亚洲国产一区在线免费,亚洲午夜免费AV