In the manufacture of organic mercurials, in anal chemistry for determining Zn or HCN detecting acetic acid in formic acid.

Mercury(II) oxide, an orange, crystalline solid, can be broken down by ... per day can be effective as an anticonvulsant, but a single dose of 100 g is more.

This monograph for Mercuric Oxide, Yellow provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and aqueous solubility. The monograph also details the following specifications and corresponding tests for verifying that a substance meets ACS Reagent Grade specifications including: Assay, Insoluble in Dilute Hydrochloric Acid, Residue after Reduction, Sulfate, Chloride, Nitrogen Compounds, and Iron.

MERCURIC OXIDE YELLOW LR