NIOBIUM(V) FLUORIDE
- CAS NO.：7783-68-8
- Empirical Formula: F5Nb
- Molecular Weight: 187.9
- MDL number: MFCD00011129
- EINECS: 232-020-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-10-17 17:11:56
What is NIOBIUM(V) FLUORIDE?
Chemical properties
light beige powder
Physical properties
Colorless monoclinic crystals; hygroscopic; density 3.293 g/cm3; melts at 72°C; vaporizes at 236°C; hydrolyzes in water forming hydrofluoric acid and fluoroniobic acid, H2NbOF5; soluble in alcohol, slightly soluble in chloroform, carbon disulfide and sulfuric acid.
The Uses of NIOBIUM(V) FLUORIDE
Niobium(V) fluoride is used as a starting material to prepare other niobium compounds. It acts as an intermediate during the recovery of niobium metal.
The Uses of NIOBIUM(V) FLUORIDE
Niobium pentafluoride is used in making other fluoro compounds of niobium.
Preparation
Niobium pentafluoride is obtained as an intermediate during the recovery of niobium metal from its ores (See Niobium). It also can be prepared by direct fluorination of niobium metal at 250 to 300°C, either by fluorine gas or anhydrous hydrofluoric acid. The pentafluoride vapors are condensed in a pyrex or quartz tube from which it is sublimed at 120°C under vacuum and collected as colorless crystals.
Also, niobium pentafluroide can be prepared by the reaction of fluorine with niobium pentachloride: 2NbCl2 + 5F2 → 2NbF5 + 5Cl2.
Properties of NIOBIUM(V) FLUORIDE
| Melting point: | 72 °C |
| Boiling point: | 220 °C |
| Density | 3.92 |
| Flash point: | ≈230°C |
| solubility | reacts with H2O; slightly soluble in CS2
chloroform |
| form | Powder |
| color | White to pale yellow |
| Specific Gravity | 3.92 |
| Water Solubility | Hydrolyzes in water, alcohol, and caustic solutions. Sparingly soluble in CS{2}, chloroform. Forms complexes with Lewis basesSlightly soluble in carbon disulfide and chloroform. |
| Sensitive | Moisture Sensitive |
| Merck | 14,6558 |
| CAS DataBase Reference | 7783-68-8(CAS DataBase Reference) |
| EPA Substance Registry System | Niobium fluoride (NbF5), (TB-5-11)- (7783-68-8) |
Safety information for NIOBIUM(V) FLUORIDE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H314:Skin corrosion/irritation |
| Precautionary Statement Codes |
P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for NIOBIUM(V) FLUORIDE
New Products
Tubulysin D (2S,4R)-4-amino-2-methyl-5-phenylpentanoic acid hydrochloride Tubulysin G 2,2-diethoxyethanethioamide 3-METHYLAZETIDIN-3-OL HYDROCHLORIDE 2-(azetidin-3-ylidene)acetonitrile (hydrochloride) 4,4-DIFLUOROCYCLOHEXANAMINE CYCLOBUTYLAMINE HYDROCHLORIDE 4-(Benzyloxy)-3-bromophenylacetic Acid Isoxazole, 3-[[[5-(difluoromethoxy)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl]methyl]thio]-4,5-dihydro-5,5-dimethyl- 2-(1-(Mercaptomethyl) cyclopropyl) acetonitrile Fuel shell Imeglimin Hydrochloride IH 2-[[(3aR,4S,6R,6aS)-6-Aminotetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]ethanol ethanedioate 2-[2-[3(S)-3[2-(7-chloro-2-quinolinyl) ethenyl] phenyl-3- hydroxyl propyl] phenyl]-2-propanol (1R,2S)-2-(3,4-Difluorophenyl)cyclopropanamine Magnesium Trisilicate Lubiprostone Latanoprostene Bunod Flame Retardant Zinc Borate (R)-(3-(3-fluoro-4- thiomorpholinophenyl)-2- oxooxazolidin-4-yl) methyl methanesulfonate methyl 3-fluoro-4- thiomorpholino phenylcarbamate 7-Methoxyquinoline-4-carboxylic acid 1H-Imidazole-4-carbonitrileRelated products of tetrahydrofuran
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