為實驗者效勞
Copper(II) sulfate anhydrous CAS: 7758-98-7
Diethyl ether CAS: 60-29-7
Indigo carmine C.I. 73015
CAS：860-22-0
Iodine, solution 0,05 mol/l (0,1 N)
CAS : 7553-56-2
Diethylene glycol monobutyl ether CAS: 112-34-5
