![Mercuric Oxide](http://sciencelab.co.ke/cdn/shop/products/ImagesHandler_60eea52d-8c2a-4d78-8dc9-8d2f9cd87850_{width}x.png?v=1565773910)
Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, has a formula of HgO. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure. The mineral form montroydite is very rarely found.
Formula: HgO