熔点  164-165 °C(lit.)
储存条件  Store at RT. 
溶解度  H2O: 1 M at 20 °C, clear, colorless
 

外观Appearance                                       白色或无色结晶
红外光谱鉴定Infrared spectrometry       和对照品匹配 
纯度Purity                                                   >99.0% (滴定) 
熔点Melting point                                    162°C - 165°C 
水不溶物                                                    ≤0.01%
重金属Heavy metals (as Pb):                ≤0.0005 %  
pH (1 %; H2O):                                         10.4-11   
干燥失重Water:                                        ≤1 %  
铁Fe:                                                         ≤0.0005 %  
吸光度A (1 cm/0.1 M in water):   
280 nm:                                                     ≤0.15  
400 nm:                                                    ≤0.05
 

生物缓冲剂，用在生化诊断试剂盒、DNA/RNA提取试剂盒及PCR诊断试剂盒里。
常温