白色结晶粉末，溶于水等有机溶剂。
熔点  120-121 °C
沸点  219-220 °C (9.7513 mmHg)  
密度  1.09 g/mL at 20 °C 

纯度Purity                                           >99.0% (滴定) 
干燥损失Loss on drying:                     ≤3 %  
pH (0.5 M; H2O):                                   6.0 - 7.0 (20°C)  
水溶性试验Solubility (0.5 M; H2O):      无色透明
铜Cu:                                                   ≤0.0005 %  
铁Fe:                                                    ≤0.0005 %  
铅Pb:                                                    ≤0.0005 % 
氯离子Chloride:                                     ≤0.005 %  
硫酸盐Sulfate:                                       ≤0.005 %  

危险品标志  Xn 
危险类别码  36/37/38 
安全说明  26-36 
WGK Germany  3
 
F  3 

用在生化诊断试剂盒和DNA/RNA提取试剂盒PCR诊断试剂盒里的PH值缓冲液。
常温保存