為實驗者效勞
Bismuth(III) hydroxide nitrate CAS:1304-85-4
250G
Iodine, solution 0,05 mol/l (0,1 N)
CAS : 7553-56-2
Diethylene glycol monoethyl ether CAS: 111-90-0
Diethylene glycol CAS: 111-46-6
Potassium permanganate
CAS:7722-64-7