四基磷酸氫銨/5574-97-0

結(jié)晶性粉末 熔點(diǎn) 151-154 °C(lit.) 沸點(diǎn) 81-82 °C 密度 1.04 g/mL at 20 °C 折射率 n20/D 1.369 閃點(diǎn) 43 °F
質(zhì)量標(biāo)準(zhǔn)
  

項(xiàng)目grade                                            98%
純度Purity                                            ≥98%
熔點(diǎn)Melting point                              151-154 °C
溶解試驗(yàn)solubility                             clear to hazy

項(xiàng)目                                                             色譜級(jí)
                                                             （用于離子對(duì)色譜）
外觀Appearance                                       透明溶液
紅外光譜鑒定Infrared spectrometry       和對(duì)照品匹配 
色度Color scale                                       <5 APHA 
濃度Strength                                            0.485 - 0.515 M 
pH                                                                7.1 - 7.7°C
紫外吸收UV (2% 水溶液) (1 cm cell vs HPLC 水) ：
   200 nm A:                            <0.5 
   210 nm A:                            <0.03 
   300 nm A:                           <0.03

項(xiàng)目                                                                        色譜級(jí)     
                                                                                 (HPLC) 
外觀Appearance                                          結(jié)晶性粉末
紅外光譜鑒定Infrared spectrometry           和對(duì)照品匹配 
純度Purity                                                        >99.0%  (T) 
紫外吸收UV (0.1% 水溶液) (1 cm 石英比色皿) ：
200 nm A: <0.2 
210 nm A: <0.1 
214 nm A: <0.02