7774-29-0
Product Name:
MERCURY(II) IODIDE
Formula:
HgI2
Synonyms:
Mercuric iodide red;Mercury diiodide;Mercury(II) iodide;Mercury(II) iodide red
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Mercury iodide appears as a scarlet-red odorless tasteless powder. Sensitive to light. Insoluble in water and sinks in water. At elevated temperatures turns yellow but turns back to red upon cooling. Poison. |
|---|---|
| Color/Form | Scarlet-red, heavy, powder |
| Odor | Odorless |
| Taste | Almost tasteless |
| Boiling Point | 669 °F at 760 mmHg (USCG, 1999) |
| Melting Point | 495 °F (USCG, 1999) |
| Solubility | 0.006 g/100 g water @ 25 °C |
| Density | 6.3 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Pressure | 100 mm Hg at 261.8 °C; 400 mm Hg at 324.2 °C |
| Stability/Shelf Life | SENSITIVE TO LIGHT |
| Refractive Index | INDICES OF REFRACTION: 2.455 (EPSILON); 2.748 (OMEGA) |
| Other Experimental Properties | Sublimes @ 350 °C; @ 130 °C becomes yellow, then red on cooling |
| Chemical Classes | Metals -> Mercury Compounds, Inorganic |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P262:Do not get in eyes, on skin, or on clothing. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. |
COMPUTED DESCRIPTORS
| Molecular Weight | 454.40 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 455.77959 g/mol |
| Monoisotopic Mass | 455.77959 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 3 |
| Formal Charge | 0 |
| Complexity | 2.8 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Mercury iodide appears as a scarlet-red odorless tasteless powder. Sensitive to light. Insoluble in water and sinks in water. At elevated temperatures turns yellow but turns back to red upon cooling. Poison.