通用名称：2-吡咯烷酮                                                                                                   

化学名称：α-吡咯烷酮                                                                                                  

分子式：c4h7no                                                                                                  

cas登记号：616-45-5                                                                                            

结 构 式：                                                                                                           

                                                                 

物化性质：                                                                                                         

无色到淡黄色液体或结晶。                                                                    

熔点24.6℃，                                                                           

沸点245℃，                                                                            

密度1.116（25/4℃）,                                                                    

折光率1.4870。                                                                         

粘度13.3。                                                                                     

饱和蒸气压1.33 kpa /122℃。                                                             

闪点129℃。                                                                           

引燃温度145℃。                                                                      

燃烧热2286.5 kj/mol。                                                                      

能溶于水、醇、醚、氯仿、苯、乙酸乙酯和二硫化碳等多数有机溶剂。难溶于石油醚。                                        

 

项 目	优等品	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 观	无色或淡黄透明液体

                                                                                                                                           

 

用 途：                                                                                                         

α-吡咯烷酮为无色的高沸点极性溶剂，是有机合成中间体。主要用于合成树脂、农药、多元醇、油墨和碘的溶剂。也是生产聚乙烯吡咯烷酮、锦纶-4和脑复康的原料。                                                                  

                                                                                                                      

包装和储运:                                                                                                        

200公斤塑料/铁桶，避免吸入及与皮肤、眼睛的接触，使用时需戴防护手套。隐凉、干燥、密封储存