| Formula / Notation | HgO |
|---|---|
| CAS Number | 21908-53-2 |
| Molecular Weight | 216.59 |
| Melting Point | Decomposes at 932 °F (EPA, 1998) |
| Density | 11.1 at 39 °F (EPA, 1998) - Denser than water; will sink |
| Solubility | 0.0053 G/100 CC WATER @ 25 °C |
| Appearance | Mercuric oxide, [solid] appears as red or orange-red odorless, dense crystalline powder or scales, yellow when finely powdered. Used as a chemical intermediate for mercury salts, organic mercury co... |
| Also Known As | oxomercury; MERCURIC OXIDE; 21908-53-2; Mercuric oxide, red; Santar; Red Precipitate; Red mercuric oxide; Mercury oxide (HgO); Mercuric oxide, yellow; Santar M |
| Category | Inorganic Compounds |
What is Mercury(II) oxide?
Mercury(II) oxide (HgO) is an inorganic compound that appears as Mercuric oxide, [solid] appears as red or orange-red odorless, dense crystalline powder or scales, yellow when finely powdered. Used as a chemical intermediate for mercury salts, organic mercury co.... It has a molecular weight of 216.59 g/mol. Its IUPAC name is oxomercury. Melting point: Decomposes at 932 °F (EPA, 1998).
Formula & Notation
IUPAC Name: oxomercury
Other Names / Synonyms: oxomercury; MERCURIC OXIDE; 21908-53-2; Mercuric oxide, red; Santar; Red Precipitate; Red mercuric oxide; Mercury oxide (HgO); Mercuric oxide, yellow; Santar M
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | Decomposes at 932 °F (EPA, 1998) |
| Density | 11.1 at 39 °F (EPA, 1998) - Denser than water; will sink |
| Molecular Weight | 216.59 |
| Solubility | 0.0053 G/100 CC WATER @ 25 °C |
| Appearance | Mercuric oxide, [solid] appears as red or orange-red odorless, dense crystalline powder or scales, yellow when finely powdered. Used as a chemical intermediate for mercury salts, organic mercury co... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Mercury(II) oxide (HgO) is an inorganic compound that appears as Mercuric oxide, [solid] appears as red or orange-red odorless, dense crystalline powder or scales, yellow when finely powdered. Used as a chemical intermediate for mercury salts, organic mercury co.... It has a molecular weight of 216.59 g/mol. Its IUPAC name is oxomercury. Melting point: Decomposes at 932 °F (EPA, 1998).
Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.
May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.
The formula or notation for Mercury(II) oxide is: HgO