為實驗者效勞
Copper(II) chloride 2-hydrate CAS: 10125-13-0
Indigo carmine C.I. 73015
CAS：860-22-0
Silver nitrate
CAS: 7761-88-8
Diethyl ether CAS: 60-29-7
Potassium permanganate
CAS：7722-64-7
