Title: Mercuric Subsulfate
CAS Registry Number: 1312-03-4
CAS Name: Mercury oxide sulfate
Additional Names: mercury oxonium sulfate; Turpeth mineral; basic mercuric sulfate
Molecular Formula: Hg3O6S
Molecular Weight: 729.83
Percent Composition: Hg 82.45%, O 13.15%, S 4.39%
Line Formula: HgSO4.2HgO
Literature References: Proved to be mercury oxonium sulfate in x-ray studies of its structure. The polymeric oxonium cations (Hg3O2)x form 2-dimensional infinite layers. The sulfate ions lie inside the loops of the wide-meshed cation lattice.
Properties: Lemon-yellow, heavy, odorless powder. Poisonous! Practically insol in water. Sol in acids.
Status: This monograph has been retired and is no longer subject to revision or update.