為實驗者效勞
o-Cresolphthalein, indicator CAS: 596-27-0
Silver nitrate
CAS: 7761-88-8
Dextrin white CAS: 9004-53-9
Indigo carmine C.I. 73015
CAS：860-22-0
2,6-Di-tert-butyl-4-methylphenol CAS: 128-37-0
