potassium ferricyanide and di-ammonium phosphate in test tube with cork cap. chemical ingredient on laboratory table. top view

acid ammonium analysis antibiotic background bio bright cap care chemical chemistry closeup copy space cork cosmetic crystal equipment examination experiment ferricyanide flake glass health industry ingredient ion iron lab laboratory material medical oxidant pharmacy phosphate polymer polymeric potassium powder pure raw red research sample science solid supplement synthetic test tube white di-ammonium table top view cap table view