為實驗者效勞
Calcium nitrate 4-hydrate CAS: 3477-34-4
Diethylene glycol monobutyl ether CAS: 112-34-5
Potassium permanganate
CAS：7722-64-7
Iodine, solution 0,05 mol/l (0,1 N)
CAS : 7553-56-2
Indigo carmine C.I. 73015
CAS：860-22-0
