| 痕量阳离子 | heavy metals (as Pb): ≤5 ppm | 
                                
                                    
                                        | Foreign Activity | DNase, RNase, protease, none detected | 
                                
                                    
                                        | 级别 | Biotechnology Performance Certified | 
                                
                                    
                                        | pH范围 | 7.7 - 9.1 | 
                                
                                    
                                        | 纯度 | ≥99.5% (titration) | 
                                
                                    
                                        | 产品质量级别 | ELITE | 
                                
                                    
                                        | 适用性 | cell culture tested | 
                                
                        
                            
                                    
                                        | pKa | 8.4 | 
                                
                                    
                                        | 闪点 | >110 °C | 
                                
                                    
                                        | 闪点 | >230 °F | 
                                
                                    
                                        | 熔点 | 230-235 °C (dec.) | 
                                
                        
                            
                                    
                                        | 个人保护装置 | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter | 
                                
                                    
                                        | 德国WGK号 | 3 |