Thulium fluoride, anhydrous
thulium(iii) fluoride
CAS: 13760-79-7
Molecular Formula: F3Tm
Thulium fluoride, anhydrous - Names and Identifiers
| Name | thulium(iii) fluoride |
| Synonyms | THULIUM FLUORIDE Thulium fluoride thulium trifluoride thuliumfluoride(tmf3) thulium(iii) fluoride THULIUM(III) FLUORIDE thulium(+3) cation fluoride Thulium fluoride, anhydrous thulium(iii) fluoride, anhydrous |
| CAS | 13760-79-7 |
| EINECS | 237-353-7 |
| InChI | InChI=1/FH.Tm/h1H;/q;+3/p-1 |
Thulium fluoride, anhydrous - Physico-chemical Properties
| Molecular Formula | F3Tm |
| Molar Mass | 225.93 |
| Density | 7.9 |
| Melting Point | 1158°C |
| Boling Point | 2200°C |
| Flash Point | 2200°C |
| Water Solubility | Soluble in water. |
| Appearance | powder |
| Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3 |
| Sensitive | Hygroscopic |
Thulium fluoride, anhydrous - Risk and Safety
| Hazard Symbols | T - Toxic |
| Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. R32 - Contact with acids liberates very toxic gas |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 3288 6.1/PG 3 |
| WGK Germany | 3 |
| TSCA | Yes |
| Hazard Note | Toxic |
| Hazard Class | 6.1 |
| Packing Group | III |
Thulium fluoride, anhydrous - Reference Information
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| production method | prepared by reacting thulium oxide with dry hydrogen fluoride gas. The optimum reaction temperature is 600~750 ℃. The reaction was carried out in a rotary kiln fluorination furnace. The amount of oxide treated per furnace was more than 20kg. The consumption of dry hydrogen fluoride was about 2.5 times the theoretical amount. The oxygen content in the prepared high quality fluoride is within 0.04% ~ 0.1%, the conversion rate can reach 99%, and the recovery rate of rare earth is higher than 98%. In the operation of this method, attention should be paid to the protection of strong corrosive hydrogen fluoride gas. |
Last Update：2024-04-10 22:29:15
