分子式：(C4H9O)3PO
分子量：266.32  
性状：无色透明液体，溶于多种有机溶剂，微溶于水。
用途：本品可作溶剂，可用作硝酸纤维素、氯化橡胶及聚氯乙烯的增塑剂，涂料，粘和剂和油墨的溶剂，消泡剂和消静电剂，稀土金属萃取剂。
包装：170Kg白铁桶        
        
规格        工业级                化学纯          分析纯              出口级
    
外观      无色透明液体        同前              同前                同前
                            
色泽              38                      20                  20                    10  
含量              ─                      97                  98.5              99.0  
折射率  1．390-1420            ─                    ─                  ─  
  
相对密度  0.850-0.982    0.974-0.980    0.974-0.980    0.974-0.980
    
水分                    ─                0.3                0.15                  0.1
    
酸值                    ─                  0.5              0.1                    0.1