Samarium(3+)trifluorid
samarium trifluoride
CAS: 13765-24-7
Molecular Formula: F3Sm
Samarium(3+)trifluorid - Names and Identifiers
| Name | samarium trifluoride |
| Synonyms | Samarium fluoride samarium trifluoride Samarium trifluoride Samarium(3+)trifluorid Samarium(3+) trifluoride Trifluorure de samarium(3+) samarium(iii) fluoride, anhydrous, reacton |
| CAS | 13765-24-7 |
| EINECS | 237-367-3 |
| InChI | InChI=1/3FH.Sm/h3*1H;/q;;;+3/p-3 |
Samarium(3+)trifluorid - Physico-chemical Properties
| Molecular Formula | F3Sm |
| Molar Mass | 207.36 |
| Density | 6,928 g/cm3 |
| Melting Point | 1306 °C |
| Boling Point | 2323 °C |
| Water Solubility | Soluble moderately in strong mineral acids. Insoluble in water. |
| Vapor Presure | 922mmHg at 25°C |
| Appearance | Powder |
| Specific Gravity | 6.928 |
| Color | Slightly yellow |
| Exposure Limit | ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3 |
| Storage Condition | Room Temprature |
| Stability | hygroscopic |
| Sensitive | Hygroscopic |
| MDL | MFCD00049540 |
Samarium(3+)trifluorid - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R32 - Contact with acids liberates very toxic gas R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed. |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| UN IDs | UN 3288 |
| TSCA | Yes |
| HS Code | 28469000 |
| Hazard Note | Irritant |
| Hazard Class | 6.1 |
| Packing Group | III |
Samarium(3+)trifluorid - Reference Information
| appearance | anhydrous samarium fluoride yellowish powder without crystal water. |
| properties | anhydrous samarium fluoride chemical formula SmF3, white bulky powder or crystal, melting point 1306 ℃, boiling point 2323 ℃, relative density 6.925. Anhydrous samarium fluoride is soluble in hydrogen fluoride or ammonium fluoride aqueous solution, but insoluble in pure water. |
| application | anhydrous samarium fluoride is an inorganic metal compound and is widely used: it can be used in semiconductor materials, thermal spraying materials, heat insulation materials, anti-corrosion materials, thermal barrier materials, optical fiber doping, laser materials, luminescent materials, doping materials, coating materials, etc. |
| preparation | 1000L samarium chloride solution with a concentration of 0.23mol/L is added into FK3000 enamel reaction tank, samarium chloride solution is heated to 93 ℃, ammonium bicarbonate solution with a concentration of 2.5mol/L is added 300L, precipitation reaction is completed in 3 hours, and heat preservation aging is carried out for 1 hour, washing and filtering to obtain a mixed precipitation of samarium oxycarbonate and basic samarium carbonate, in which the weight ratio of samarium oxycarbonate to basic samarium carbonate is 4: 1; 130L of water is added to a 1000L fluorination transformation tank, and the samarium oxycarbonate and basic samarium carbonate are precipitated into a slurry, and 40kg of hydrofluoric acid with a weight ratio of 40% is added to the paddle material for fluorination under stirring, and the fluorination temperature is 20 ℃, control the pH value of the end-point acidity to be 1.5~2.0, continue stirring for 1 hour, wash, filter and centrifuge the samarium fluoride precipitate, and dry it at 200 ℃ in a drying kiln for 12 hours to obtain a central particle size of 30.06 μm. |
| EPA chemical information | information provided by: ofmpub.epa.gov (external link) |
Last Update：2024-04-10 22:29:15
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View History
Samarium(3+)trifluorid
16596-41-1
Permanent Carmine HF-4C
21290
3-ethoxypropan-1-ol
Asasetron
品黄
二溴化锡(II)
Iridium(Ⅱ) dioxide
21105
16596-41-1
Permanent Carmine HF-4C
21290
3-ethoxypropan-1-ol
Asasetron
品黄
二溴化锡(II)
Iridium(Ⅱ) dioxide
21105