CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Thallium sulfate appears as odorless white rhomboid prisms or a dense white powder. Density 6.77 g / cm3. Melting point 1170 °F (632 °C). Extremely toxic by ingestion. Very toxic by skin absorption and ingestion. A slow acting cumulative poison. Used as a rat poison, and an ant bait. Also used for analysis (testing for iodine in the presence of chlorine) and ozonometry. Not registered as a pesticide in the U.S. |
|---|---|
| Color/Form | White, rhomboid prisms |
| Odor | Odorless |
| Boiling Point | Decomposes (EPA, 1998) |
| Melting Point | 1170 °F (EPA, 1998) |
| Solubility | Solubility in 100 ml water at 0 °C: 2.70 g, at 20 °C: 4.87 g, at 100 °C: 18.45 g |
| Density | 6.77 (EPA, 1998) - Denser than water; will sink |
| Vapor Pressure | Inappreciable (EPA, 1998) |
| Stability/Shelf Life | Very stable |
| Corrosivity | Slightly corrosive to iron |
| Refractive Index | Index of refraction: 1.860, 1.867, 1.885 |
| Other Experimental Properties | Heat of fusion 5500 cal/g mole; 10.9 cal/g |
| Chemical Classes | Metals -> Metals, Inorganic Compounds |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H300:Acute toxicity,oral H311:Acute toxicity,dermal H315:Skin corrosion/irritation H372:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P314:Get medical advice/attention if you feel unwell. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
COMPUTED DESCRIPTORS
| Molecular Weight | 504.83 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 505.90058 g/mol |
| Monoisotopic Mass | 505.90058 g/mol |
| Topological Polar Surface Area | 88.6 Ų |
| Heavy Atom Count | 7 |
| Formal Charge | 0 |
| Complexity | 62.2 |
| 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 | 3 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Thallium sulfate appears as odorless white rhomboid prisms or a dense white powder. Density 6.77 g / cm3. Melting point 1170 °F (632 °C). Extremely toxic by ingestion. Very toxic by skin absorption and ingestion. A slow acting cumulative poison. Used as a rat poison, and an ant bait. Also used for analysis (testing for iodine in the presence of chlorine) and ozonometry. Not registered as a pesticide in the U.S.