THALLIUM(I) FLUORIDE
- CAS NO.：7789-27-7
- Empirical Formula: FTl
- Molecular Weight: 223.38
- MDL number: MFCD00049607
- EINECS: 232-154-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-04 16:00:12
What is THALLIUM(I) FLUORIDE?
Chemical properties
white powder(s); ortho-rhomb; hard, shiny crystal(s); can deliquescent, e.g., if breathed upon, however reverts to anhydrous form in dry air; not typically hygroscopic; enthalpy of fusion 14.00kJ/mol [MER06] [STR93] [CRC10]
Physical properties
Hard shiny crystals; orthorhombic structure; density 8.23 g/cm3 at 4°C; melts at 327°C; begins to sublime at 300°C; vaporizes at 655°C; very soluble in water, 78.6 g/100mL at 15°C; decomposes in hot water; slightly soluble in alcohol.
The Uses of THALLIUM(I) FLUORIDE
Thallium(I) fluoride is used as chemical reagents, fine chemicals, pharmaceutical research and development.
The Uses of THALLIUM(I) FLUORIDE
In the preparation of fluoro esters.
Hazard
Highly toxic (See Thallium).
Safety Profile
Poison by ingestion. When heated to decomposition it emits very toxic fumes of Fand T1. See also THALLIUM COMPOUNDS and FLUORIDES.
Properties of THALLIUM(I) FLUORIDE
| Melting point: | 322 °C(lit.) |
| Boiling point: | 655 °C |
| Density | 8.3 g/mL at 25 °C(lit.) |
| Flash point: | 655°C |
| form | Powder |
| color | White |
| Specific Gravity | 8.23 |
| Water Solubility | Very soluble in water |
| Merck | 14,9262 |
| Exposure limits | ACGIH: TWA 0.02 mg/m3; TWA 2.5 mg/m3 (Skin) NIOSH: IDLH 15 mg/m3; IDLH 250 mg/m3; TWA 0.1 mg/m3 |
| CAS DataBase Reference | 7789-27-7(CAS DataBase Reference) |
| EPA Substance Registry System | Thallium fluoride (TlF) (7789-27-7) |
Safety information for THALLIUM(I) FLUORIDE
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H300:Acute toxicity,oral H330:Acute toxicity,inhalation H373:Specific target organ toxicity, repeated exposure H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P320:Specific treatment is urgent (see … on this label). P330:Rinse mouth. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P405:Store locked up. |
Computed Descriptors for THALLIUM(I) FLUORIDE
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