NH3实验室制备的原理装置收集和检验原理:______________________________________________________________________________装置:______________________________________________________________________________收集:___________________
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NH3实验室制备的原理装置收集和检验原理:______________________________________________________________________________装置:______________________________________________________________________________收集:___________________
NH3实验室制备的原理装置收集和检验
原理:______________________________________________________________________________
装置:______________________________________________________________________________
收集:______________________________________________________________________________
检验:______________________________________________________________________________
NH3实验室制备的原理装置收集和检验原理:______________________________________________________________________________装置:______________________________________________________________________________收集:___________________
Ca(OH)2+2NH4Cl=CaCl2+2NH3+2H2O(加热)
铁架台(带铁夹),试管,酒精灯,棉花团
向下排空气法,导管插到试管底部,在试管口堵一团棉花
闻到有刺激性气味,使湿润的红色石蕊试纸变蓝