Assertion: gallic acid | /r/HasProperty | fpegg
Facets:
Source sentences:
text: In order to prepare magnetite iron oxide coated with polyethylene glycol and gallic acid (FPEGG), the mixture of 2.43 g ferrous chloride tetrahydrate (FeCl 2 ·4H 2 O), 0.99 g ferric chloride hexahydrate (FeCl 3 ·6H 2 O), and 80 mL deionized water in the presence of 6 mL ammonia hydroxide (25% by mass) was exposed to ultrasonic irradiation for 1 h.