Iron Oxide Brown Pigment

Product name

Iron Oxide Brown

CAS No.

1309-37-1 & 51274-00-1 & 1317-61-9

EINECS  

215-168-2 & 243-746-4 & 215-277-5

C.I. No.

C.I. 77491 & 77492 & 77499
(Synthetic iron oxide mixture)

Appearance

Brown powder

Formula

Mixture of Fe₂O₃·αH₂O, Fe₂O₃·H₂O and Fe₃O₄