THALLIUM (I) SULFIDE
- CAS NO.：1314-97-2
- Empirical Formula: STl2
- Molecular Weight: 440.82
- MDL number: MFCD00011277
- EINECS: 215-250-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 02:37:57
What is THALLIUM (I) SULFIDE?
Chemical properties
Blue-black, lustrous, microscopic crystals or amorphous powder. Soluble in mineral acids; insoluble in water, alcohol, or ether.
The Uses of THALLIUM (I) SULFIDE
Infrared-sensitive photocells.
The Uses of THALLIUM (I) SULFIDE
Thallium sulfide (Tl2S) is used to make infrared-sensitive photoelectric cells and as a pesticide.
Properties of THALLIUM (I) SULFIDE
| Melting point: | 448.5° |
| Boiling point: | 1367°C |
| Density | 8.39 |
| solubility | slightly soluble in alkaline solutions; soluble in acid solutions |
| form | blue-black crystals |
| color | blue-black crystals, crystalline |
| Water Solubility | slightly soluble H2O, alkali hydroxides, sulfides, cyanides; soluble mineral acids [MER06] |
| Merck | 13,9341 |
| Solubility Product Constant (Ksp) | pKsp: 20.30 |
| EPA Substance Registry System | Thallium sulfide (Tl2S) (1314-97-2) |
Safety information for THALLIUM (I) SULFIDE
| 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 H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P314:Get medical advice/attention if you feel unwell. |
Computed Descriptors for THALLIUM (I) SULFIDE
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