蔗糖在硫酸的催化下水解得到葡萄糖和果糖
氨水和硝酸銀得到銀氨溶液，此時鐵離子和鋁離子都會形成氫氧化物沈澱，過濾
濾液再和葡萄糖果糖反應就可以得到銀
CaO + H2O == Ca(OH)2
Ca(OH)2 + (NH4)2CO3 == CaCO3↓ + 2NH3·H2O
3NH3·H2O + R3+ == R(OH)3↓ + 3NH4+,R = Fe3+,Al3+
2NH3·H2O + Ag+ == [Ag(NH3)2]+ + 2H2O
C12H22O11 + H2O ==H2SO4加熱== C6H12O6(葡萄糖) + C6H12O6(果糖)
C6H12O6(葡萄糖或果糖) + 2[Ag(NH3)2]+ + 2OH- ==加熱== Ag↓ + 3NH3 + C6H11O7- + NH4+ + H2O